Pub Date : 2019-05-01DOI: 10.1109/ICACMVE.2019.00012
Bi Yongmin, Zeng Jianbin, Chen Qifan, L. Mengru
The problem about how to arrange the valve block and how to connect the hole for the hydraulic manifold block has the characteristics of high complexity and strong coupling, which is the key to the hydraulic manifold block design. In this article, a genetic algorithm is designed to quickly find the global optimal solution of the problem. The basic mathematical models of the hydraulic manifold block are established, including the minimum wall thickness check model, the shape interference check model and the connection model of holes. In order to process constraints, a concept of taboos is defined. The fitness function of the genetic algorithm is calculated based on the mathematical models and the taboo value. The feasibility of the genetic algorithm is evaluated by designing a hydraulic manifold block of the left front leg of the spider-type aerial work vehicle.
{"title":"Intelligent Design of Hydraulic Manifold Block Based on Genetic Algorithm","authors":"Bi Yongmin, Zeng Jianbin, Chen Qifan, L. Mengru","doi":"10.1109/ICACMVE.2019.00012","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00012","url":null,"abstract":"The problem about how to arrange the valve block and how to connect the hole for the hydraulic manifold block has the characteristics of high complexity and strong coupling, which is the key to the hydraulic manifold block design. In this article, a genetic algorithm is designed to quickly find the global optimal solution of the problem. The basic mathematical models of the hydraulic manifold block are established, including the minimum wall thickness check model, the shape interference check model and the connection model of holes. In order to process constraints, a concept of taboos is defined. The fitness function of the genetic algorithm is calculated based on the mathematical models and the taboo value. The feasibility of the genetic algorithm is evaluated by designing a hydraulic manifold block of the left front leg of the spider-type aerial work vehicle.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130399152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-01DOI: 10.1109/ICACMVE.2019.00026
Z. Jiahua, Li Aiping, L. Xuemei
Assembly line balancing and sequencing are two main problems in the planning of a mixed-model assembly line. In recent years, the un-paced buffered mixed-model assembly line with buffers between workstations has been widely used in industry. In order to solve the balancing and sequencing problem and ensure the efficient operation of the assembly line, an integrated method for the balancing and sequencing of unpaced buffered mixed-model assembly line is proposed. A combined precedence diagram is used to transform the mixedmodel assembly line balancing problem into a single model balancing problem. The objective of the balancing problem is to minimize cycle time under given the number of the workstations. A combined priority rule is adopted to find a solution. Based on the result of the balancing problem, the NEH (Nawaz-Enscore-Ham) algorithm is implemented for the sequencing problem to minimize the makespan considering the blocking owing to the buffers. The effectiveness of the method is verified by three cases.
{"title":"An Integrated Method for the Un-Paced Buffered Mixed-Model Assembly Line Balancing and Sequencing","authors":"Z. Jiahua, Li Aiping, L. Xuemei","doi":"10.1109/ICACMVE.2019.00026","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00026","url":null,"abstract":"Assembly line balancing and sequencing are two main problems in the planning of a mixed-model assembly line. In recent years, the un-paced buffered mixed-model assembly line with buffers between workstations has been widely used in industry. In order to solve the balancing and sequencing problem and ensure the efficient operation of the assembly line, an integrated method for the balancing and sequencing of unpaced buffered mixed-model assembly line is proposed. A combined precedence diagram is used to transform the mixedmodel assembly line balancing problem into a single model balancing problem. The objective of the balancing problem is to minimize cycle time under given the number of the workstations. A combined priority rule is adopted to find a solution. Based on the result of the balancing problem, the NEH (Nawaz-Enscore-Ham) algorithm is implemented for the sequencing problem to minimize the makespan considering the blocking owing to the buffers. The effectiveness of the method is verified by three cases.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"53 93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114236616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-01DOI: 10.1109/ICACMVE.2019.00037
Bu Wanghui, Fang Laixin, Hou Kun, Chen Jing, An Xianghua
To protect human from sharp edges of passenger cars, the fillet radius of external projections on car surface should conform the national standard. To inspect underlying problems of the external projections on the design stage, a sphere should roll freely on the car surface in the design platform, which is difficult to achieve in the existing CAD software. Hence, a novel approach to establish the free rolling contact constraints is presented in this paper. The car surface is modelled by triangular facets, and the rolling of the sphere on car surface is converted to the motion on the facets. The rolling contact constraints for both single facet and double facets are established, and are switched through understanding the manipulation purpose of the designer. The tool of digital inspection for external projections is developed based on NX secondary development, which notably improves the inspection efficiency on the car design stage.
{"title":"Digital Inspection for External Projections of Passenger Cars Based on Free Rolling Contact Constraints","authors":"Bu Wanghui, Fang Laixin, Hou Kun, Chen Jing, An Xianghua","doi":"10.1109/ICACMVE.2019.00037","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00037","url":null,"abstract":"To protect human from sharp edges of passenger cars, the fillet radius of external projections on car surface should conform the national standard. To inspect underlying problems of the external projections on the design stage, a sphere should roll freely on the car surface in the design platform, which is difficult to achieve in the existing CAD software. Hence, a novel approach to establish the free rolling contact constraints is presented in this paper. The car surface is modelled by triangular facets, and the rolling of the sphere on car surface is converted to the motion on the facets. The rolling contact constraints for both single facet and double facets are established, and are switched through understanding the manipulation purpose of the designer. The tool of digital inspection for external projections is developed based on NX secondary development, which notably improves the inspection efficiency on the car design stage.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116715657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-01DOI: 10.1109/ICACMVE.2019.00086
Cheng Wei, Qin Xianrong, Yang Zhigang
The wind loads of tower crane may be changed greatly under the interference of building. Based on CFD numerical method, the building and tower crane model with different lateral and longitudinal spacing ratios were established, and wind load coefficients of tower crane with/without building around were obtained. By defining the along-wind interference factor, the distribution characteristics of interference factor of the mast section and the counter-jib section under different wind directions were systematically studied. The results show that the interference effect of building on tower crane under different lateral and longitudinal spacing ratios and different wind directions is mainly shielding effect. The distribution law of interference factor of mast section along the height accords with cubic function under 0°, 30° and 60° wind directions, and the maximum value is about 0.6 at 60° wind direction. The interference factor of counter-jib section fluctuate around 1 under different wind directions, but the distribution law of interference factor of counter-jib is consistent with quadratic function under 120° and 150° wind directions.
{"title":"Study of the Interference Effect of Building on the Along-Wind Load of Tower Crane","authors":"Cheng Wei, Qin Xianrong, Yang Zhigang","doi":"10.1109/ICACMVE.2019.00086","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00086","url":null,"abstract":"The wind loads of tower crane may be changed greatly under the interference of building. Based on CFD numerical method, the building and tower crane model with different lateral and longitudinal spacing ratios were established, and wind load coefficients of tower crane with/without building around were obtained. By defining the along-wind interference factor, the distribution characteristics of interference factor of the mast section and the counter-jib section under different wind directions were systematically studied. The results show that the interference effect of building on tower crane under different lateral and longitudinal spacing ratios and different wind directions is mainly shielding effect. The distribution law of interference factor of mast section along the height accords with cubic function under 0°, 30° and 60° wind directions, and the maximum value is about 0.6 at 60° wind direction. The interference factor of counter-jib section fluctuate around 1 under different wind directions, but the distribution law of interference factor of counter-jib is consistent with quadratic function under 120° and 150° wind directions.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122869058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-01DOI: 10.1109/ICACMVE.2019.00033
Xu Yangzeng, L. Siyuan
This paper analyses the current situation of insufficient intellectualization of hydraulic system and component in the process of intellectualization of Engineering robots, and puts forward the way to develop hydraulic intelligent components. At the present the hydraulic intelligent components are still in the initiation period, the main requirements and means of product development are put forward in this paper. Emphasis is laid on the feasibility of implicit state space method as the core theory of hydraulic intelligent components, and a control algorithm of hydraulic components based on implicit state equation is proposed, which can realize the function of autonomous control. A parameter identification method based on the inverse operation of the above control algorithm is proposed, which can be used to construct a model-based intelligent fault diagnosis system for grey box identification, and for future use in the hydraulic technology. Fault diagnosis of hydraulic system and components are prospected. Hydraulic intelligent components are to be an agent. It continues to develop in application in intelligent construction machinery, and will inevitably open up a new practical application market in the development of digital twin technology.
{"title":"Study on Relationship of Intellectualization between Hydraulic Mobile Machinery and Hydraulic Components","authors":"Xu Yangzeng, L. Siyuan","doi":"10.1109/ICACMVE.2019.00033","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00033","url":null,"abstract":"This paper analyses the current situation of insufficient intellectualization of hydraulic system and component in the process of intellectualization of Engineering robots, and puts forward the way to develop hydraulic intelligent components. At the present the hydraulic intelligent components are still in the initiation period, the main requirements and means of product development are put forward in this paper. Emphasis is laid on the feasibility of implicit state space method as the core theory of hydraulic intelligent components, and a control algorithm of hydraulic components based on implicit state equation is proposed, which can realize the function of autonomous control. A parameter identification method based on the inverse operation of the above control algorithm is proposed, which can be used to construct a model-based intelligent fault diagnosis system for grey box identification, and for future use in the hydraulic technology. Fault diagnosis of hydraulic system and components are prospected. Hydraulic intelligent components are to be an agent. It continues to develop in application in intelligent construction machinery, and will inevitably open up a new practical application market in the development of digital twin technology.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127002344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-01DOI: 10.1109/ICACMVE.2019.00042
Cheng Hong, Xi Ying, Huang Zhi
The drive principle of Hydro-mechanical Continuously Variable Transmission (HMCVT) are demonstrated in this paper. Afterwards, the control system, which attempt to realize the experiment purpose, is proposed. This paper is based on theoretical analysis, a feasible scheme for this test is proposed, the object which should be controlled and the data which should be collected in the whole process are explicated. Furthermore, MATLAB/Simulink are used to simulate the peculiarity of the pivotal object which is included in the test, different control tactics are taken according to different objects. The PAC System RX3i are used in the test as the controller. Finally a better multistage speed control strategy is introduced which based on the comparison of the result both in theory and experiment.
阐述了液压机械无级变速器的传动原理。在此基础上，提出了实现实验目的的控制系统。本文在理论分析的基础上，提出了可行的试验方案，阐述了整个试验过程中应控制的对象和收集的数据。此外，利用MATLAB/Simulink对试验中所包含的关键对象的特性进行了仿真，并针对不同的对象采取了不同的控制策略。本试验采用PAC System RX3i作为控制器。最后，通过理论和实验结果的比较，提出了一种较好的多级调速策略。
{"title":"Application of Multistage Speed Control Strategies in Research on Properties of Hydro-Mechanical Power Split Transmission","authors":"Cheng Hong, Xi Ying, Huang Zhi","doi":"10.1109/ICACMVE.2019.00042","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00042","url":null,"abstract":"The drive principle of Hydro-mechanical Continuously Variable Transmission (HMCVT) are demonstrated in this paper. Afterwards, the control system, which attempt to realize the experiment purpose, is proposed. This paper is based on theoretical analysis, a feasible scheme for this test is proposed, the object which should be controlled and the data which should be collected in the whole process are explicated. Furthermore, MATLAB/Simulink are used to simulate the peculiarity of the pivotal object which is included in the test, different control tactics are taken according to different objects. The PAC System RX3i are used in the test as the controller. Finally a better multistage speed control strategy is introduced which based on the comparison of the result both in theory and experiment.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123268435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-01DOI: 10.1109/ICACMVE.2019.00028
Yang Jixiang, Bian Yongming, Zeng Jianbin
In order to increase the energy saving effect of hybrid loader, a power system applied to parallel hybrid loader is proposed. The system structure, working condition characteristics and control strategy of hybrid loader are analysed, and the energy saving effect of working devices is studied. The parameters of the main components of a 5 tons hybrid loader are changed and simulated to find the best when working devices working or not. The simulation results demonstrate that the system installed the influence of working devices on fuel consumption, and whether using working devices causes some differences under dynamic rule-based control strategy. The volume of accumulator are the same while the displacement of pump/motor in hydraulic brake regeneration system using working devices should be bigger than the system under stopping working devices which means the condition of working devices is not negligible in the process of parameter matching for parallel hybrid loader .
{"title":"Research on the Energy Saving Effect of Working Devices on Parallel Hybrid Loader","authors":"Yang Jixiang, Bian Yongming, Zeng Jianbin","doi":"10.1109/ICACMVE.2019.00028","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00028","url":null,"abstract":"In order to increase the energy saving effect of hybrid loader, a power system applied to parallel hybrid loader is proposed. The system structure, working condition characteristics and control strategy of hybrid loader are analysed, and the energy saving effect of working devices is studied. The parameters of the main components of a 5 tons hybrid loader are changed and simulated to find the best when working devices working or not. The simulation results demonstrate that the system installed the influence of working devices on fuel consumption, and whether using working devices causes some differences under dynamic rule-based control strategy. The volume of accumulator are the same while the displacement of pump/motor in hydraulic brake regeneration system using working devices should be bigger than the system under stopping working devices which means the condition of working devices is not negligible in the process of parameter matching for parallel hybrid loader .","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122844223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-01DOI: 10.1109/ICACMVE.2019.00021
Yunfei Ge, Qing Zhang, Xuehua Chen, Z. Wu
Aiming at studying the relationship between steering radius and the corresponding maximum speed of straddle carrier under the steering process, a research of the steering stability is conducted in this paper. First, a stability criterion is proposed to protect the straddle carrier from rolling over in the steering process. Next, the dynamic equations of the vehicle body system are established and the change of the body rolling angle is achieved. A method is proposed to determine the critical speed of rollover under a given steering radius. Finally a simulation using Adams is performed and the accuracy of the proposed method is verified. The study provides the theoretical basis for steering stability control of autonomous straddle carrier.
{"title":"Research on the Steering Stability of Autonomous Straddle Carrier","authors":"Yunfei Ge, Qing Zhang, Xuehua Chen, Z. Wu","doi":"10.1109/ICACMVE.2019.00021","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00021","url":null,"abstract":"Aiming at studying the relationship between steering radius and the corresponding maximum speed of straddle carrier under the steering process, a research of the steering stability is conducted in this paper. First, a stability criterion is proposed to protect the straddle carrier from rolling over in the steering process. Next, the dynamic equations of the vehicle body system are established and the change of the body rolling angle is achieved. A method is proposed to determine the critical speed of rollover under a given steering radius. Finally a simulation using Adams is performed and the accuracy of the proposed method is verified. The study provides the theoretical basis for steering stability control of autonomous straddle carrier.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123929446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, a hydraulic flexible joint for legged robots is presented to meet the requirements of flexible control and variable stiffness in varies of conditions. A proportional flow valve for closed-loop position control and an inverse proportional pressure valve for output force regulation are combined in series in the hydraulic joint, and force-position hybrid control is adopted for this joint. The detailed design and control method are proposed and analyzed. The experiment results show that the hydraulic flexible joint not only can realize the high accurate position control, but also can proportionally adjust the stiffness in a wide range. When the force and displacement constraints are applied, the performance of hydraulic flexible joint is good under the force-position hybrid control.
{"title":"Design and Experimental Evaluation of a Hydraulic Flexible Joint for Legged Robots","authors":"Jinlin Jiang, Heng Cao, Yu Wang, Jun Zhu, Xiaolu Wang, Xinbin Zhang","doi":"10.1109/ICACMVE.2019.00010","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00010","url":null,"abstract":"In this paper, a hydraulic flexible joint for legged robots is presented to meet the requirements of flexible control and variable stiffness in varies of conditions. A proportional flow valve for closed-loop position control and an inverse proportional pressure valve for output force regulation are combined in series in the hydraulic joint, and force-position hybrid control is adopted for this joint. The detailed design and control method are proposed and analyzed. The experiment results show that the hydraulic flexible joint not only can realize the high accurate position control, but also can proportionally adjust the stiffness in a wide range. When the force and displacement constraints are applied, the performance of hydraulic flexible joint is good under the force-position hybrid control.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129865518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hilbert-Huang Transform (HHT) causes modal aliasing and false modes in identifying modal frequencies of structures, thus a power spectrum modal frequency identification method based on Empirical Mode Decomposition (EMD) is proposed. The paper chooses quayside container crane (QCC) as the object of research. Firstly, the finite element model of QCC is established to identify the modal frequencies by modal analysis. Secondly, EMD is applied to the monitoring signals of QCC. According to the principle of correlation, the effective Intrinsic Mode Function (IMF) components are screened to identify the modal frequencies by power spectrum. The experimental results show that the method of frequency identification is close to the results of finite element frequency identification, and can effectively eliminate the false modes, improving the efficiency of frequency identification. The results of identification are more intuitive.
{"title":"Modal Frequency Identification of Quayside Container Crane Based on Empirical Mode Decomposition and Power Spectrum","authors":"Jiahui Liu, X. Qin, Qing Zhang, X. Ding, Pengming Zhan","doi":"10.1109/ICACMVE.2019.00069","DOIUrl":"https://doi.org/10.1109/ICACMVE.2019.00069","url":null,"abstract":"Hilbert-Huang Transform (HHT) causes modal aliasing and false modes in identifying modal frequencies of structures, thus a power spectrum modal frequency identification method based on Empirical Mode Decomposition (EMD) is proposed. The paper chooses quayside container crane (QCC) as the object of research. Firstly, the finite element model of QCC is established to identify the modal frequencies by modal analysis. Secondly, EMD is applied to the monitoring signals of QCC. According to the principle of correlation, the effective Intrinsic Mode Function (IMF) components are screened to identify the modal frequencies by power spectrum. The experimental results show that the method of frequency identification is close to the results of finite element frequency identification, and can effectively eliminate the false modes, improving the efficiency of frequency identification. The results of identification are more intuitive.","PeriodicalId":375616,"journal":{"name":"2019 International Conference on Advances in Construction Machinery and Vehicle Engineering (ICACMVE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129540626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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