Pub Date : 2025-02-11DOI: 10.1016/j.ijnonlinmec.2025.105030
Om Prakash Meena , Manas Lohani , Soham Sen , Deepesh Mishra , Rajiv Aggarwal
This study delves into periodic orbits within the circular restricted three-body problem (CR3BP), where a negligible mass orbits under the gravitational pull of two primary bodies. Specifically, we examine the dynamics of the third body in the CR3BP with an oblate larger primary. We determine periodic orbits around the libration points, accounting for the oblate spheroidal shape of the larger primary, using the Fourier series method. We analyze both short and long periodic orbits, presenting variational graphs to depict changes in the period of the orbits. Furthermore, we investigate how oblateness and mass parameters affect the dimensions and periods of the periodic orbits.
{"title":"Application of Fourier series to the dynamics of a test particle in the CR3BP with an oblate primary","authors":"Om Prakash Meena , Manas Lohani , Soham Sen , Deepesh Mishra , Rajiv Aggarwal","doi":"10.1016/j.ijnonlinmec.2025.105030","DOIUrl":"10.1016/j.ijnonlinmec.2025.105030","url":null,"abstract":"<div><div>This study delves into periodic orbits within the circular restricted three-body problem (CR3BP), where a negligible mass orbits under the gravitational pull of two primary bodies. Specifically, we examine the dynamics of the third body in the CR3BP with an oblate larger primary. We determine periodic orbits around the libration points, accounting for the oblate spheroidal shape of the larger primary, using the Fourier series method. We analyze both short and long periodic orbits, presenting variational graphs to depict changes in the period <span><math><mi>T</mi></math></span> of the orbits. Furthermore, we investigate how oblateness and mass parameters affect the dimensions and periods of the periodic orbits.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"172 ","pages":"Article 105030"},"PeriodicalIF":2.8,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143394671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-11DOI: 10.1016/j.ijnonlinmec.2025.105044
Junchao Jin , Laihong Jing , Zhiyu Song , Kai Su , Fengwei Yang , Yafei Zhai
Concrete lining plays key role in high-pressure water diversion tunnels, where accurately predicting their cracking and leakage behavior is essential for effective engineering design. However, due to the complexity of the working environment and load conditions, the influencing patterns of lining cracking and leakage remains not fully comprehensive and the design methods need improvement. This paper aims to contribute to deepen the understanding of hydraulic-mechanical interaction of pervious concrete lining in pressure tunnels. It conceptualizes the tunnel as a structure comprising concrete lining, grouting ring, and surrounding rock. An analytical model is developed based on principles of displacement continuity and flow continuity, considering both internal and external water pressures. By comparing with existing analytical solution, physical model experiment, and engineering monitoring data, the correctness of the established model was verified. This model comprehensively considers internal and external water boundary conditions for both the lining-surrounding rock structure and the lining-grouting ring-surrounding rock structure, thereby broadening its applicable scenarios. Using the control variable method, the study analyzes the influence of factors such as concrete grade, reinforcement ratio, lining thickness, elastic modulus of surrounding rock, permeability coefficient of surrounding rock, grouting ring thickness and permeability coefficient of grouting ring on lining cracking and leakage, using indicators like steel stress, crack width, and leakage. Finally, the study proposes an optimization design methodology for pervious concrete lining, supported by illustrative examples that demonstrate its applicability in engineering practice. This research contributes valuable insights into enhancing the reliability and performance of concrete lining in high-pressure tunnels.
{"title":"Hydraulic-mechanical interaction of pervious concrete lining considering lining cracking in pressure tunnels","authors":"Junchao Jin , Laihong Jing , Zhiyu Song , Kai Su , Fengwei Yang , Yafei Zhai","doi":"10.1016/j.ijnonlinmec.2025.105044","DOIUrl":"10.1016/j.ijnonlinmec.2025.105044","url":null,"abstract":"<div><div>Concrete lining plays key role in high-pressure water diversion tunnels, where accurately predicting their cracking and leakage behavior is essential for effective engineering design. However, due to the complexity of the working environment and load conditions, the influencing patterns of lining cracking and leakage remains not fully comprehensive and the design methods need improvement. This paper aims to contribute to deepen the understanding of hydraulic-mechanical interaction of pervious concrete lining in pressure tunnels. It conceptualizes the tunnel as a structure comprising concrete lining, grouting ring, and surrounding rock. An analytical model is developed based on principles of displacement continuity and flow continuity, considering both internal and external water pressures. By comparing with existing analytical solution, physical model experiment, and engineering monitoring data, the correctness of the established model was verified. This model comprehensively considers internal and external water boundary conditions for both the lining-surrounding rock structure and the lining-grouting ring-surrounding rock structure, thereby broadening its applicable scenarios. Using the control variable method, the study analyzes the influence of factors such as concrete grade, reinforcement ratio, lining thickness, elastic modulus of surrounding rock, permeability coefficient of surrounding rock, grouting ring thickness and permeability coefficient of grouting ring on lining cracking and leakage, using indicators like steel stress, crack width, and leakage. Finally, the study proposes an optimization design methodology for pervious concrete lining, supported by illustrative examples that demonstrate its applicability in engineering practice. This research contributes valuable insights into enhancing the reliability and performance of concrete lining in high-pressure tunnels.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"173 ","pages":"Article 105044"},"PeriodicalIF":2.8,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143478735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-11DOI: 10.1016/j.ijnonlinmec.2025.105034
Olaf Hesebeck
The temperature dependence of viscoelastic materials is usually modeled assuming thermorheologically simple behavior. In the commercial finite element software Abaqus, this feature is available for both linear and nonlinear viscoelastic models. The nonlinear implementation of viscoelasticity enables to use more sophisticated creep models, but also to formulate the material behavior dependent on an additional field variable, e.g. a variable describing ageing. Convergence problems or a prohibitive large number of small increments can occur if a significant change of temperature is simulated using the nonlinear approach with implicit time integration.
This technical note presents a user subroutine avoiding the convergence problem. The solution is explained and demonstrated in a test case of bonded plates under stresses induced by thermal cycling. In this test, the solution using the user subroutine agrees with the linear reference solution and shows similarly good convergence, while the nonlinear simulation without the user subroutine shows convergence problems. User subroutine and test input files are provided in the supplementary material.
{"title":"An Abaqus user subroutine solving convergence problems of nonlinear viscoelastic models with thermorheologically simple temperature dependence","authors":"Olaf Hesebeck","doi":"10.1016/j.ijnonlinmec.2025.105034","DOIUrl":"10.1016/j.ijnonlinmec.2025.105034","url":null,"abstract":"<div><div>The temperature dependence of viscoelastic materials is usually modeled assuming thermorheologically simple behavior. In the commercial finite element software Abaqus, this feature is available for both linear and nonlinear viscoelastic models. The nonlinear implementation of viscoelasticity enables to use more sophisticated creep models, but also to formulate the material behavior dependent on an additional field variable, e.g. a variable describing ageing. Convergence problems or a prohibitive large number of small increments can occur if a significant change of temperature is simulated using the nonlinear approach with implicit time integration.</div><div>This technical note presents a user subroutine avoiding the convergence problem. The solution is explained and demonstrated in a test case of bonded plates under stresses induced by thermal cycling. In this test, the solution using the user subroutine agrees with the linear reference solution and shows similarly good convergence, while the nonlinear simulation without the user subroutine shows convergence problems. User subroutine and test input files are provided in the supplementary material.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"172 ","pages":"Article 105034"},"PeriodicalIF":2.8,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143394672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
It is important to study the effects of the mechanical properties and failure characteristics of defective frozen soil under coupled compression–shear loading for engineering construction safety and disaster prevention. In this study, the particle flow code was used to establish the distinct element method (DEM) model of a split-Hopkinson pressure bar experiment on frozen soil. The failure processes of frozen soils with different tilting angles and holes were simulated using the DEM model to investigate the influence of the tilting angle and hole deviation (deviation from the geometric center of the frozen soil specimen) on the impact mechanical properties and failure characteristics of frozen soil specimens under coupled compression–shear loading. The results of numerical simulation indicated that when the tilting angle and impact strain rate were 0° and 100 s−1, the axial peak stress of frozen soil specimen with a hole was smaller than that without a hole, the hole deviation had a minor influence on the axial peak stress. When the strain rate was 100 s−1, the axial and shear peak stresses of the frozen soil specimen without a hole increased and decreased, respectively, with increasing tilting angle, and the number proportion of shear-cracks also increased. When the tilting angle and strain rate were 60° and 100 s−1, the fully deviated hole had a minor influence on the impact mechanical properties and failure characteristics of the frozen soil. The impact loading also had a minor influence on the deformation of the hole.
{"title":"DEM study on the impact mechanical properties and failure characteristics of frozen soil under coupled compression–shear loading","authors":"Lijun Zhang , Zhanfan Chunyu , Zhiwu Zhu , Longjiang Hou , Zhengqiang Cheng , Shuai Zhang","doi":"10.1016/j.ijnonlinmec.2025.105039","DOIUrl":"10.1016/j.ijnonlinmec.2025.105039","url":null,"abstract":"<div><div>It is important to study the effects of the mechanical properties and failure characteristics of defective frozen soil under coupled compression–shear loading for engineering construction safety and disaster prevention. In this study, the particle flow code was used to establish the distinct element method (DEM) model of a split-Hopkinson pressure bar experiment on frozen soil. The failure processes of frozen soils with different tilting angles and holes were simulated using the DEM model to investigate the influence of the tilting angle and hole deviation (deviation from the geometric center of the frozen soil specimen) on the impact mechanical properties and failure characteristics of frozen soil specimens under coupled compression–shear loading. The results of numerical simulation indicated that when the tilting angle and impact strain rate were 0° and 100 s<sup>−1</sup>, the axial peak stress of frozen soil specimen with a hole was smaller than that without a hole, the hole deviation had a minor influence on the axial peak stress. When the strain rate was 100 s<sup>−1</sup>, the axial and shear peak stresses of the frozen soil specimen without a hole increased and decreased, respectively, with increasing tilting angle, and the number proportion of shear-cracks also increased. When the tilting angle and strain rate were 60° and 100 s<sup>−1</sup>, the fully deviated hole had a minor influence on the impact mechanical properties and failure characteristics of the frozen soil. The impact loading also had a minor influence on the deformation of the hole.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"172 ","pages":"Article 105039"},"PeriodicalIF":2.8,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143418818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-07DOI: 10.1016/j.ijnonlinmec.2025.105037
Guanghui Xia , Su Zhang , Mingrui Liu , Yufeng Zhang , Tingting Han , Hua Xia , Wei Wang , Xiaofang Kang , Leiyu Chen , Weiqiu Chen , C.W. Lim
Based on the multi-directionality of the excitation source, a more accurate mathematical model is established by taking into account five kinds of nonlinearities, including material nonlinearity, geometric nonlinearity, damping nonlinearity, inertial nonlinearity and coupling nonlinearity. The effects of parameters such as excitation amplitude, damping coefficients, resistance, tip masses and nonlinear piezoelectric coefficients on the response and stability of the system are analyzed by approximate resolution. The result shows that variation of excitation amplitude induces no impact on the stability, while linear damping coefficients and nonlinear piezoelectric coefficients have remarkable impact on the unstable region. Through analyzing the influence of different parameters, the adjusting of linear damping and selecting appropriate piezoelectric material can greatly improve the stability in the low frequency range.
{"title":"Stability performance analysis of complex nonlinear piezoelectric energy harvesting systems","authors":"Guanghui Xia , Su Zhang , Mingrui Liu , Yufeng Zhang , Tingting Han , Hua Xia , Wei Wang , Xiaofang Kang , Leiyu Chen , Weiqiu Chen , C.W. Lim","doi":"10.1016/j.ijnonlinmec.2025.105037","DOIUrl":"10.1016/j.ijnonlinmec.2025.105037","url":null,"abstract":"<div><div>Based on the multi-directionality of the excitation source, a more accurate mathematical model is established by taking into account five kinds of nonlinearities, including material nonlinearity, geometric nonlinearity, damping nonlinearity, inertial nonlinearity and coupling nonlinearity. The effects of parameters such as excitation amplitude, damping coefficients, resistance, tip masses and nonlinear piezoelectric coefficients on the response and stability of the system are analyzed by approximate resolution. The result shows that variation of excitation amplitude induces no impact on the stability, while linear damping coefficients and nonlinear piezoelectric coefficients have remarkable impact on the unstable region. Through analyzing the influence of different parameters, the adjusting of linear damping and selecting appropriate piezoelectric material can greatly improve the stability in the low frequency range.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"172 ","pages":"Article 105037"},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143418821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Active dry friction dampers (ADFDs) are promising in rotor vibration suppression. The normal force of ADFD is commonly designed by minimizing responses at a given axial position or maximizing damping ratios. These methods emphasize the maximization of local damping effects while the influences of stiffening effects on system dynamics are ignored. By analyzing the dynamic characteristics of a complex rotor-ADFDs system, this paper intends to disclose the existence of some phenomena due to friction-stiffening effects, which may make the optimization results of those local-damping-oriented methods unsatisfactory. The harmonic balance method is combined with an equivalent linearization technique to relate the unbalance responses with the damper's friction-stiffening effects. After model validation, the effects of rotational speeds, normal forces, and ADFD's installation positions on unbalance responses and ADFD's stiffness coefficients were studied. The results show that the friction-stiffening effects will cause discrepancies in unbalance responses at different positions. Due to the ADFD's stiffening effects, the response variation trends at different positions may differ after the stick-slip transition. An optimum ADFD's normal force exists to minimize rotor unbalance response, though the optimum result could vary for responses at different positions due to friction-stiffening effects. Using the ADFD's stiffening effects, better vibration suppression performance may be achieved at multiple positions even if the damping level of the friction damper is lower.
{"title":"Dynamic characteristics of a complex rotor system supported on active dry friction dampers considering friction-stiffening effects","authors":"Minghong Jiang, Peng Zhang, Xianghong Gao, Changsheng Zhu","doi":"10.1016/j.ijnonlinmec.2025.105042","DOIUrl":"10.1016/j.ijnonlinmec.2025.105042","url":null,"abstract":"<div><div>Active dry friction dampers (ADFDs) are promising in rotor vibration suppression. The normal force of ADFD is commonly designed by minimizing responses at a given axial position or maximizing damping ratios. These methods emphasize the maximization of local damping effects while the influences of stiffening effects on system dynamics are ignored. By analyzing the dynamic characteristics of a complex rotor-ADFDs system, this paper intends to disclose the existence of some phenomena due to friction-stiffening effects, which may make the optimization results of those local-damping-oriented methods unsatisfactory. The harmonic balance method is combined with an equivalent linearization technique to relate the unbalance responses with the damper's friction-stiffening effects. After model validation, the effects of rotational speeds, normal forces, and ADFD's installation positions on unbalance responses and ADFD's stiffness coefficients were studied. The results show that the friction-stiffening effects will cause discrepancies in unbalance responses at different positions. Due to the ADFD's stiffening effects, the response variation trends at different positions may differ after the stick-slip transition. An optimum ADFD's normal force exists to minimize rotor unbalance response, though the optimum result could vary for responses at different positions due to friction-stiffening effects. Using the ADFD's stiffening effects, better vibration suppression performance may be achieved at multiple positions even if the damping level of the friction damper is lower.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"172 ","pages":"Article 105042"},"PeriodicalIF":2.8,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143394670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-05DOI: 10.1016/j.ijnonlinmec.2025.105036
Yongfang Zhang , Hongwei Xu , Yiwei Zhao , Yanjun Lü , Xinliang Yang , Li Xiong
The rub-impact of rotor-stator system occurs when the relative motion gap between the blades and the casing exceeds radius clearance during the operation of aero-engine. It is great significant to study the temperature variations during the rub-impact of rotor-stator system for preventing combustion. The effects of nonlinear contact, centrifugal force, normal acceleration are considered to model the rub-impact contact forces of a rotor-stator system based on Hertz contact theory. The temperature field of the rub-impact of the rotor-stator system is calculated using the finite difference method by considering frictional heat generation, heat distribution, and heat conduction. Meanwhile, a rotor-stator rubbing experiment is conducted to measure the temperature of the contact surface under the operational conditions. The numerical results by the proposed method are in good agreement with the experiment results and the mean relative error is 2.96%. The proposed method can predict the temperature field on the rub-impact surface of the rotor-stator system accurately.
{"title":"The modeling and experiment study on temperature characteristics of the rub-impact of titanium alloy rotor-stator system","authors":"Yongfang Zhang , Hongwei Xu , Yiwei Zhao , Yanjun Lü , Xinliang Yang , Li Xiong","doi":"10.1016/j.ijnonlinmec.2025.105036","DOIUrl":"10.1016/j.ijnonlinmec.2025.105036","url":null,"abstract":"<div><div>The rub-impact of rotor-stator system occurs when the relative motion gap between the blades and the casing exceeds radius clearance during the operation of aero-engine. It is great significant to study the temperature variations during the rub-impact of rotor-stator system for preventing combustion. The effects of nonlinear contact, centrifugal force, normal acceleration are considered to model the rub-impact contact forces of a rotor-stator system based on Hertz contact theory. The temperature field of the rub-impact of the rotor-stator system is calculated using the finite difference method by considering frictional heat generation, heat distribution, and heat conduction. Meanwhile, a rotor-stator rubbing experiment is conducted to measure the temperature of the contact surface under the operational conditions. The numerical results by the proposed method are in good agreement with the experiment results and the mean relative error is 2.96%. The proposed method can predict the temperature field on the rub-impact surface of the rotor-stator system accurately.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"171 ","pages":"Article 105036"},"PeriodicalIF":2.8,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143378441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-05DOI: 10.1016/j.ijnonlinmec.2025.105035
Saleh Mobayen , Alireza Izadbakhsh
This paper introduces an observer-based robust adaptive compliant motion control strategy that employs (p,q)-analogue of Meyer-König and Zeller operators as estimators to tackle uncertainties, external disturbances, and friction force in collaborative multiple electrical manipulators. This approach leverages visual task-space information and doesn't depend on velocity feedback, enhancing cost-effectiveness and applicability in practical robotic systems. The lumped uncertainty is first modeled by this operator. The adaptation laws, derived from stability analysis, are then employed to tune its coefficients, which are not presented in the previous literature. By applying the Lyapunov lemma, the paper ensures that error signals within the controlled system are uniformly ultimately bounded (UUB). The suggested strategy is evaluated in a system featuring two arms managing a rigid load. Simulation results showcase the effectiveness and versatility of the proposed approach. The outcomes are also compared with two advanced approximation techniques to demonstrate the precision and effectiveness of the suggested controller design.
{"title":"Lyapunov-based adaptive adjustment of (p,q)-Analogue Meyer-König and Zeller operator coefficients with applications to compliant motion control in collaborative robotic arms","authors":"Saleh Mobayen , Alireza Izadbakhsh","doi":"10.1016/j.ijnonlinmec.2025.105035","DOIUrl":"10.1016/j.ijnonlinmec.2025.105035","url":null,"abstract":"<div><div>This paper introduces an observer-based robust adaptive compliant motion control strategy that employs (<em>p</em>,<em>q</em>)-analogue of Meyer-König and Zeller operators as estimators to tackle uncertainties, external disturbances, and friction force in collaborative multiple electrical manipulators. This approach leverages visual task-space information and doesn't depend on velocity feedback, enhancing cost-effectiveness and applicability in practical robotic systems. The lumped uncertainty is first modeled by this operator. The adaptation laws, derived from stability analysis, are then employed to tune its coefficients, which are not presented in the previous literature. By applying the Lyapunov lemma, the paper ensures that error signals within the controlled system are uniformly ultimately bounded (UUB). The suggested strategy is evaluated in a system featuring two arms managing a rigid load. Simulation results showcase the effectiveness and versatility of the proposed approach. The outcomes are also compared with two advanced approximation techniques to demonstrate the precision and effectiveness of the suggested controller design.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"172 ","pages":"Article 105035"},"PeriodicalIF":2.8,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143418819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-31DOI: 10.1016/j.ijnonlinmec.2025.105025
Qingyun Zhang, Ya Zhou, Yuhang Zhou, SeungDeog Kim, Jian Feng, Jianguo Cai
This paper addresses the issue of buckling in slender tubes under axial compression by introducing the Miura-ori origami configuration to study its impact on the buckling characteristics of slender tubes. First, the unit cell structure of the Miura-ori origami tube and the design of the origami slender tube are described. Then, taking the typical Miura-ori tube as an example, an analysis of its mechanical performance under axial compression is conducted to investigate its improvement in buckling control. To explore optimal mechanical performance, a square tube is used as a comparison to study the effects of different geometric parameters on the mechanical properties of the Miura-ori tube. The results indicate that as the length of the parallelogram increases, the internal angle decreases, the thickness decreases, and the crease weakening coefficient decreases, overall buckling control of the slender tube becomes more effective. Finally, response surface methodology is employed to analyze the combined influence of slenderness ratio, crease weakening coefficient, and internal angle on buckling control performance. The interaction between parameters is visualized, providing insights for parameter optimization.
{"title":"Numerical analysis on buckling-control of slender tube inspired by origami","authors":"Qingyun Zhang, Ya Zhou, Yuhang Zhou, SeungDeog Kim, Jian Feng, Jianguo Cai","doi":"10.1016/j.ijnonlinmec.2025.105025","DOIUrl":"10.1016/j.ijnonlinmec.2025.105025","url":null,"abstract":"<div><div>This paper addresses the issue of buckling in slender tubes under axial compression by introducing the Miura-ori origami configuration to study its impact on the buckling characteristics of slender tubes. First, the unit cell structure of the Miura-ori origami tube and the design of the origami slender tube are described. Then, taking the typical Miura-ori tube as an example, an analysis of its mechanical performance under axial compression is conducted to investigate its improvement in buckling control. To explore optimal mechanical performance, a square tube is used as a comparison to study the effects of different geometric parameters on the mechanical properties of the Miura-ori tube. The results indicate that as the length of the parallelogram increases, the internal angle decreases, the thickness decreases, and the crease weakening coefficient decreases, overall buckling control of the slender tube becomes more effective. Finally, response surface methodology is employed to analyze the combined influence of slenderness ratio, crease weakening coefficient, and internal angle on buckling control performance. The interaction between parameters is visualized, providing insights for parameter optimization.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"171 ","pages":"Article 105025"},"PeriodicalIF":2.8,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143104177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-31DOI: 10.1016/j.ijnonlinmec.2025.105028
Jialin Tian , Yufeng Xie , Hasan N. Al-Mamoori , Ameer D. Kana , Liming Dai
In the deviating section of horizontal well, a greater length of horizontal section leads to a more severe friction and a smaller weight on bit transmitted to bit, which affects the rock breaking power. To address this issue, this paper introduces a novel tool termed the Sliding Drilling Controller (SDC). Subsequently, the modal analysis of axial-torsional coupled vibration is carried out. Then, the dynamic model of the horizontal drill string system is established during sliding drilling and compound drilling to obtain the corresponding dynamic response characteristics of axial torsional coupled dynamic response. The results show that the rig speed and external load should be increased as appropriate when the SDC is connected to the drill string system, which prevents resonance. A judicious increase of weight on bit can enhance the effectiveness of reducing friction and drag. In contrast, increasing rotary torque has minor impact on the reduction of friction and drag. The research offers valuable insights for the practical application and structural enhancement of SDC.
{"title":"Dynamic characteristics and parameter analysis of drill string system with sliding drilling controller","authors":"Jialin Tian , Yufeng Xie , Hasan N. Al-Mamoori , Ameer D. Kana , Liming Dai","doi":"10.1016/j.ijnonlinmec.2025.105028","DOIUrl":"10.1016/j.ijnonlinmec.2025.105028","url":null,"abstract":"<div><div>In the deviating section of horizontal well, a greater length of horizontal section leads to a more severe friction and a smaller weight on bit transmitted to bit, which affects the rock breaking power. To address this issue, this paper introduces a novel tool termed the Sliding Drilling Controller (SDC). Subsequently, the modal analysis of axial-torsional coupled vibration is carried out. Then, the dynamic model of the horizontal drill string system is established during sliding drilling and compound drilling to obtain the corresponding dynamic response characteristics of axial torsional coupled dynamic response. The results show that the rig speed and external load should be increased as appropriate when the SDC is connected to the drill string system, which prevents resonance. A judicious increase of weight on bit can enhance the effectiveness of reducing friction and drag. In contrast, increasing rotary torque has minor impact on the reduction of friction and drag. The research offers valuable insights for the practical application and structural enhancement of SDC.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"171 ","pages":"Article 105028"},"PeriodicalIF":2.8,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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