Applications in engineering science最新文献_第7页

Microstructure and tribological characterization of thin wall of bimetallic austenitic steel fabricated through wire arc additive manufacturing (WAAM) 电弧增材制造（WAAM）双金属奥氏体钢薄壁的显微组织和摩擦学特性

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-06-10 DOI: 10.1016/j.apples.2025.100241

Rupendra S. Tanwar, Suyog Jhavar

Austenitic stainless steels, such as SS316L, are widely employed in thin rotary components like blades and impellers due to their exceptional thermal resistance, wear resistance, and corrosion properties. This study examines the dry sliding wear behaviour of wire arc additive manufactured (WAAM) austenitic bimetallic structures (BMS) comprising SS316L and SS309. Wear tests were conducted using a pin-on-disc tribometer with a flat-on-flat configuration, utilizing 3 mm square pins extracted from distinct regions of the base metals and their interface, tested against an EN31 steel disc (61 HRC). The initial average coefficient of friction (CoF) for SS316L ranged between 0.41 and 0.64, whereas the SS316L-SS309 interface demonstrated a lower CoF of 0.42 to 0.58, attributed to increased ferrite content and hardness during the initial running-in phase. X-ray diffraction results revealed the formation of iron oxides and chromium oxide on the worn surface of the plate. Microstructural and energy dispersive spectroscopy (EDS) analyses indicated that the higher ferrite content in SS309 and interface regions significantly enhanced wear resistance compared to SS316L. The wear mechanism transitioned from combined abrasive-adhesive wear to adhesive wear with plastic deformation and severe material loss. Analysis of wear debris confirmed progressive oxide layer removal during sliding, leading to increased wear. The superior hardness and ferritic phase in SS309 and interface regions contributed to improved wear resistance, underscoring the potential of austenitic BMS for applications requiring high wear performance. This study emphasizes the critical role of microstructural tailoring in optimizing wear characteristics in WAAM-fabricated austenitic BMS components.

奥氏体不锈钢，如SS316L，由于其优异的耐热性，耐磨性和腐蚀性能，广泛应用于叶片和叶轮等薄旋转部件。本研究考察了由SS316L和SS309组成的丝弧添加剂制造（WAAM）奥氏体双金属结构（BMS）的干滑动磨损行为。使用平对平配置的销对盘摩擦计进行磨损测试，使用从基本金属及其界面的不同区域提取的3mm方形销，对EN31钢盘（61 HRC）进行测试。SS316L的初始平均摩擦系数（CoF）在0.41 ~ 0.64之间，而SS316L- ss309界面的CoF较低，为0.42 ~ 0.58，这是由于初始磨合阶段铁素体含量和硬度的增加。x射线衍射结果显示，在磨损表面形成氧化铁和氧化铬。显微组织和能谱分析表明，SS309和界面区铁素体含量的增加显著提高了SS316L的耐磨性。磨损机理由磨料-黏着复合磨损向具有塑性变形和严重材料损失的黏着磨损转变。对磨损碎片的分析证实，在滑动过程中，氧化层逐渐去除，导致磨损增加。SS309和界面区域的高硬度和铁素体相有助于提高耐磨性，强调了奥氏体BMS在需要高磨损性能的应用中的潜力。本研究强调了微结构裁剪在优化waam制造的奥氏体BMS部件磨损特性中的关键作用。

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引用次数: 0

Three-dimensional analysis of flow physics around a sphere inside a cone 圆锥体内球体周围流动物理的三维分析

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-06-09 DOI: 10.1016/j.apples.2025.100238

Hamidreza Zarei, Seyed Reza Maadi

This study presents a comprehensive three-dimensional numerical investigation of the flow physics around a sphere positioned inside a conical geometry, focusing on the influence of varying Reynolds numbers (102 to 10,268) and the sphere's spatial configuration on flow characteristics and drag forces. Initially, the numerical methodology was validated by simulating the flow around a sphere in an unbounded domain and comparing results with established experimental data. Subsequently, simulations were conducted within a conical enclosure, where the sphere (diameter 0.3 m) was placed at various vertical distances relative to the inlet (ranging from 1.4 m to 0.6 m) and near the cone wall (maintaining a 10 cm gap). Results revealed a significant dependence of the drag coefficient on the sphere’s position and the development of the boundary layer within the cone. As the vertical distance from the inlet increased, the drag coefficient decreased, particularly at lower Reynolds numbers. When the sphere was positioned closer to the wall, the drag coefficient was notably affected by the growth of the boundary layer, leading to substantial reductions as the vertical distance increased. These findings highlight the complex interplay between viscous and inertial forces in confined flows and provide valuable insights for optimizing fluidic systems, micro-devices, and industrial applications involving particle dynamics in constricted geometries. The research underscores the importance of spatial positioning in modulating flow behavior and drag reduction strategies in non-uniform domains.

本研究对圆锥体内部球体的流动物理进行了全面的三维数值研究，重点研究了不同雷诺数（102至10,268）和球体的空间结构对流动特性和阻力的影响。首先，通过在无界区域内模拟球体绕流，并将结果与已有的实验数据进行比较，验证了数值方法的有效性。随后，在一个锥形罩内进行了模拟，其中球体（直径0.3 m）被放置在相对于入口的不同垂直距离上（范围从1.4 m到0.6 m）和靠近锥形壁（保持10 cm的间隙）。结果表明，阻力系数与球的位置和锥内边界层的发展有很大的关系。随着与进气道垂直距离的增加，阻力系数减小，尤其是在雷诺数较低时。当球靠近壁面时，阻力系数受边界层增长的影响显著，随着垂直距离的增加阻力系数显著减小。这些发现突出了受限流动中粘性和惯性力之间复杂的相互作用，并为优化流体系统、微设备和涉及受限几何形状颗粒动力学的工业应用提供了有价值的见解。该研究强调了空间定位在非均匀区域调节流动行为和减阻策略中的重要性。

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引用次数: 0

Investigation of noise generation due to interference between leading edge separation bubbles and blade surface 前缘分离泡与叶片表面干涉产生噪声的研究

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-05-29 DOI: 10.1016/j.apples.2025.100231

K. Seto , K. Iwano , Y. Sakai , Y. Ito , S. Kosaka , K. Yoshida

Sirocco fans are used in familiar applications such as car air-conditioners due to their compactness, and reducing the noise they generate is an important social issue. However, the mechanism of their noise generation has not been well studied. The objective of this study is to identify the physical quantities contributing to noise generation by examining the “interference between the leading-edge separation bubble and the blade surface” as an fundamental process. To achieve this, numerical simulations were conducted for the cascade models with three blade shapes of varying thicknesses. The length of the separation bubble, its thickness, and the size of the vortex all decreased with increasing blade thickness. Generated noise was predicted using Curle’s equation, and noise measurement experiments were performed with a similar system to validate the prediction accuracy. The results showed good agreement, and the generated noise was reduced at almost all frequencies with increasing blade thickness. To clarify the reasons for this, the cospectra of the time derivative of the fluctuating pressure on the suction surface were analyzed in detail. The following conclusions were drawn: To reduce the noise generated by a sirocco fan, it is effective to reduce the peak value and broaden the shape of the fluctuating pressure distribution on the blade surface and decrease the vortex size.

由于其紧凑性，热风风扇被用于汽车空调等熟悉的应用中，减少它们产生的噪音是一个重要的社会问题。然而，其噪声产生的机理尚未得到很好的研究。本研究的目的是通过考察“前缘分离泡与叶片表面之间的干涉”这一基本过程来确定导致噪声产生的物理量。为此，对三种不同叶片厚度的叶栅模型进行了数值模拟。随着叶片厚度的增加，分离泡的长度、厚度和涡的大小均减小。利用Curle方程对产生的噪声进行了预测，并用类似的系统进行了噪声测量实验，验证了预测的准确性。结果表明，随着叶片厚度的增加，在几乎所有频率下产生的噪声都有所降低。为了阐明其原因，对吸力面脉动压力时间导数的共谱进行了详细分析。研究结果表明：减小峰值、拓宽叶片表面波动压力分布形状、减小涡大小是降低风机噪声的有效措施；

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引用次数: 0

Digitizing SMEs in the EU: A scalable model for retrofitting machinery to Industry 4.0 欧盟中小企业数字化：工业4.0机械改造的可扩展模型

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-05-26 DOI: 10.1016/j.apples.2025.100230

Gabriel Gašpar , Roman Budjač , Maroš Valášek , Martin Bartoň , Tomáš Meravý , Maximilián Strémy

Small and Medium-sized Enterprises (SMEs) have faced significant economic challenges since the COVID-19 pandemic, compounded by high inflation, rising energy costs, and the cessation of government financial support. War-related disruptions in Europe have further exacerbated these issues. As the backbone of the European economy, SMEs must embrace Industry 4.0 to remain competitive. However, many lack the resources or expertise to adopt smart technologies. This article proposes a cost-effective, scalable model to guide SMEs in transitioning towards Industry 4.0 by retrofitting existing machinery. By assessing machinery readiness and identifying critical areas for digitization, the model enables targeted investments that optimize production and reduce costs. A gradual, tailored approach ensures alignment with SMEs’ financial and technical capacities, fostering modernization and long-term growth. The successful implementation of the AFB production system highlights the feasibility of retrofitting existing systems to meet modern manufacturing demands.

自2019冠状病毒病大流行以来，中小企业面临着重大的经济挑战，加上高通胀、能源成本上涨和政府停止财政支持，情况更加复杂。欧洲与战争有关的混乱进一步加剧了这些问题。作为欧洲经济的支柱，中小企业必须拥抱工业4.0以保持竞争力。然而，许多国家缺乏采用智能技术的资源或专业知识。本文提出了一个具有成本效益，可扩展的模型，通过改造现有机械来指导中小企业向工业4.0过渡。通过评估机器准备情况并确定数字化的关键领域，该模型可以实现有针对性的投资，从而优化生产并降低成本。采取循序渐进、量身定制的方式，确保与中小企业的资金和技术能力保持一致，促进现代化和长期增长。空军基地生产系统的成功实施突出了改造现有系统以满足现代制造需求的可行性。

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引用次数: 0

A socio-spatial analysis of commuter preferences and behavior for driving sustainable rail network development 驱动可持续轨道网络发展的通勤偏好和行为的社会空间分析

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-05-25 DOI: 10.1016/j.apples.2025.100236

Üsame Ekici , Hediye Tuydes-Yaman , Sarbast Moslem

To support sustainable transportation network development, Türkiye made big investments in the rail sector, including High-Speed Rail (HSR) services. To better understand the rail commuter sector and its potential connection to the Eurasian corridors in the future, current trends in the Turkish rail commuter transportation sector are investigated using the nationwide conducted rail commuter survey. Spatial analysis of the trips of 7028 rail commuters showed major desire lines, which are centered around a few cities with relatively shorter intercity travel distances. Further analysis of sociodemographic information showed a higher rate of young and middle-aged travelers who were mostly male, suggesting gender inequality in the rail commuter sector. Rail commuters preferred HSR mostly for “shorter time” and “more comfort” reasons and conventional rail for “lower cost” and “more comfort". Binary logit analysis of the business trips also revealed that being male, having a higher age, and returning the same day have a positive impact on the likelihood of making a business trip.

为了支持可持续交通网络的发展， rkiye对铁路部门进行了大量投资，包括高速铁路（HSR）服务。为了更好地了解铁路通勤部门及其未来与欧亚走廊的潜在联系，我们使用全国范围内进行的铁路通勤调查来调查土耳其铁路通勤运输部门的当前趋势。对7028名铁路通勤者出行的空间分析显示，主要的愿望线集中在几个城际旅行距离相对较短的城市周围。对社会人口统计信息的进一步分析显示，以男性为主的中青年旅客比例更高，这表明铁路通勤领域存在性别不平等。铁路通勤者选择高铁主要是出于“时间更短”和“更舒适”的原因，而传统铁路是出于“成本更低”和“更舒适”的原因。对出差的二元logit分析也显示，男性、年龄较大、当天返回对出差的可能性有正向影响。

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引用次数: 0

Parametric study of permanent magnet eddy current brake considering demagnetization, temperature, edge, and skin effects: Numerical and experimental investigation 考虑退磁、温度、边缘和趋肤效应的永磁涡流制动器参数化研究：数值和实验研究

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-05-21 DOI: 10.1016/j.apples.2025.100235

Hussein Hassanpour, Salman Ebrahimi-Nejad, Morteza Mollajafari

This paper presents an improved mathematical model and parametric analysis of the developed model for the eddy current brake system using the finite element method. The analytical model is developed to consider terms such as temperature, skin, edge, and demagnetization effects that are neglected in the simplified models of other studies conducted in the literature review. Also, the presented mathematical model has been validated experimentally. In the performance parametric study, the variables related to the rotor and stator, including initial speed, material, diameter, thickness, and moment of inertia of the disk, as well as the position, number, and arrangement of permanent magnets, were investigated. The results of the numerical analysis of the improved model compared to the simple basic model show that the newly developed model is much closer to the experimental study results in terms of the braking torque trend than the simplified model, and its initial and maximum values are 3 and 4 percent more consistent, respectively. Also, the parametric analysis results show that an aluminum disc is better than other selected materials, and increasing the disk’s radius produces more braking torque than increasing its thickness. In the case of the stator, to obtain the maximum amount of braking torque, the best arrangement of permanent magnets is to utilize them on a double side, to use smaller and more magnets than larger and fewer magnets, and to locate them at a distance from the edge of the disk.

本文提出了涡流制动系统的改进数学模型，并用有限元法对所建立的模型进行了参数化分析。该分析模型是为了考虑在文献综述中进行的其他研究的简化模型中忽略的温度、皮肤、边缘和退磁效应等因素而开发的。并通过实验验证了该数学模型的正确性。在性能参数研究中，研究了与转子和定子相关的变量，包括初始转速、材料、圆盘直径、厚度、转动惯量以及永磁体的位置、数量和排列。将改进模型与简单的基本模型进行了数值分析，结果表明，改进模型在制动力矩变化趋势方面比简化模型更接近试验研究结果，其初始值和最大值的一致性分别提高了3%和4%。参数分析结果表明，铝合金制动盘的制动性能优于其他材料，增大制动盘的半径比增大制动盘的厚度产生更大的制动力矩。在定子的情况下，为了获得最大的制动转矩，永磁体的最佳排列是在双面使用永磁体，使用较小和较多的永磁体，而不是较大和较少的永磁体，并将永磁体放置在离磁盘边缘一定距离的位置。

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引用次数: 0

On the convolutive development of elastic substrate media as nano foundation 论弹性衬底介质作为纳米基础的卷曲发展

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-05-16 DOI: 10.1016/j.apples.2025.100234

D. Indronil, IM Nazmul

This study introduces a novel framework for developing models of elastic substrate foundations using an integral convolution approach. The proposed methodology systematically breaks down the applied load function into integral components and employs a multiplicative kernel transformation to derive the governing equations for substrate behavior. By extending traditional foundation models like the Winkler and Pasternak models, this formulation incorporates shear interactions and spatial variations in material properties, thereby addressing limitations in conventional approaches. The resulting equations effectively capture both local and global effects of applied loads, providing a more accurate representation of substrate behavior in heterogeneous, anisotropic, and non-uniform systems. The validity of the proposed model is verified through comparisons with established theories, demonstrating its precision and broader applicability to complex structural scenarios. The convolution-based formulation also enhances the analysis of advanced loading conditions and nonlinear material responses, making it highly adaptable to real-world engineering applications. The analytical and numerical results of this study contribute significantly to structural mechanics, especially in the design and analysis of beams, plates, and other structural elements interacting with elastic substrates. The findings have potential applications in nano- and micro-scale engineering, geotechnical studies, and advanced material modeling, highlighting the importance of nonlocal elasticity in contemporary structural analysis.

本研究介绍了一种利用积分卷积方法开发弹性基底基础模型的新框架。所提出的方法系统地将所施加的载荷函数分解为积分分量，并采用乘法核变换来推导基底行为的控制方程。通过扩展传统的基础模型，如Winkler和Pasternak模型，该公式结合了剪切相互作用和材料特性的空间变化，从而解决了传统方法的局限性。所得到的方程有效地捕获了施加载荷的局部和全局效应，提供了在非均匀、各向异性和非均匀系统中基材行为的更准确的表示。通过与已有理论的比较，验证了该模型的有效性，证明了其精度和对复杂结构场景的广泛适用性。基于卷积的公式还增强了对高级加载条件和非线性材料响应的分析，使其高度适应现实世界的工程应用。本研究的分析和数值结果对结构力学，特别是梁、板和其他与弹性基底相互作用的结构元件的设计和分析具有重要意义。这些发现在纳米和微尺度工程、岩土工程研究和先进材料建模中具有潜在的应用价值，突出了非局部弹性在当代结构分析中的重要性。

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引用次数: 0

Transverse vibrations and stability of viscoelastic axially moving Rayleigh beams under thermal fields: An analytical approach 热场作用下粘弹性轴向运动瑞利梁的横向振动与稳定性：一种解析方法

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-05-15 DOI: 10.1016/j.apples.2025.100233

Farzam Fatehi sichani , Ali Mokhtarian , Shahram Babadoust , Soheil Salahshour

In this work, the flexural vibrations and stability of viscoelastic beams under axial motion and thermal fields are investigated using Rayleigh beam theory. The viscoelastic behavior is modeled through the Kelvin-Voigt and Maxwell models, and the governing differential equation is derivative utilizing Hamilton's principle. To create a more realistic model, thermal stresses in the beam are simulated using both linear and non-linear models. An innovative analytical solution method for these equations is presented, employing a power series approach to solve equations. The research provides an explicit mathematical expression for the mixed vibration modes of the beam under axial motion. Various parameters, such as rotational inertia, linear and non-linear thermal stresses, structural damping, and axial movement speed, are analyzed for their effects on the dynamic characteristics and instability of viscoelastic Rayleigh beams under axial motion. The findings indicate that incorporating rotational inertia and Rayleigh beam theory reduces the natural frequencies at low axial speeds but consistently increases the system's critical speed. Furthermore, rotational inertia induces distortions in the vibration mode shapes. Notably, the impact of rotational inertia on the second mode shape is significant, resulting in the loss of the nodal point in the second vibration mode shape of the beam under axial motion.

本文利用瑞利梁理论研究了粘弹性梁在轴向运动和热场作用下的弯曲振动和稳定性。通过Kelvin-Voigt和Maxwell模型对其粘弹性行为进行建模，并利用Hamilton原理对控制微分方程进行导数。为了创建一个更真实的模型，在梁的热应力模拟使用线性和非线性模型。提出了一种新颖的解析解法，利用幂级数法求解这些方程。研究为轴向运动下梁的混合振动模态提供了明确的数学表达式。分析了轴向运动下粘弹性瑞利梁的转动惯量、线性和非线性热应力、结构阻尼和轴向运动速度等参数对粘弹性瑞利梁动力特性和失稳的影响。研究结果表明，结合转动惯量和瑞利光束理论可以降低低轴向速度下的固有频率，但可以持续提高系统的临界速度。此外，转动惯量引起振动模态的畸变。值得注意的是，转动惯量对第二振型的影响很大，导致梁在轴向运动下第二振型的节点丢失。

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引用次数: 0

Influence analysis of parameters of thermal aging laminated rubber bearing under cyclic shear loads 循环剪切载荷下热老化层合橡胶支座参数的影响分析

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-05-11 DOI: 10.1016/j.apples.2025.100229

Junwei Wang , Fuqiang Zhao , Zihan Guo , Yifan Song

Composite rubber bearing is an important supporting component in bridge structure system, its aging and shear performance will affect the safety of the whole structure. However, due to the complexity of LRB specifications and sizes, the shear properties of aging LRB under different parameters were studied. In this study, the thermal aging and shear tests of 12 LRBs of the same specifications were first carried out, and the test results were taken as a reference, and the finite element model was established to select the constitutive model and determine the parameters, and finally the constitutive model and parameters consistent with the test were determined. Then, LRBs with different shape coefficient, diameter and number of layers were established, and shear simulation was carried out respectively to compare with the shear performance of the test supports, and the changes of parameters such as maximum shear force, energy dissipation, equivalent shear stiffness, initial sliding displacement and sliding distance generated by LRBs of different specifications at different shear stages were studied. The results show that for LRB of the same specifications, aging does not affect the maximum shear force, but the hardness and energy dissipation of rubber material increase with the aging time, and the initial sliding distance decreases with the aging time. For LRB with different parameters, under the same aging time, the maximum shear force and energy dissipation increase with the increase of shear deformation, and the equivalent shear stiffness decreases with the increase of shear degree. The maximum shear force, energy dissipation and initial shear stiffness of LRB increase with the increase of shape coefficient and diameter. The number of layers of the LRB does not affect the maximum shear force, but the energy dissipation increases with the increase of the number of layers, and the equivalent shear stiffness decreases with the increase of the number of layers. The larger the shape factor, diameter and layer number of LRB, the more likely it is to slip. Therefore, the influence of bearing parameters on the shear performance of LRB should be considered comprehensively when designing LRB in actual engineering.

复合橡胶支座是桥梁结构体系中的重要支承构件，其老化和抗剪性能将影响整个结构的安全。然而，由于LRB规格和尺寸的复杂性，研究了老化LRB在不同参数下的剪切性能。本研究首先对12种相同规格的LRBs进行了热老化和剪切试验，并以试验结果为参考，建立有限元模型，选择本构模型并确定参数，最后确定与试验一致的本构模型和参数。然后，建立不同形状系数、直径和层数的LRBs，分别进行剪切模拟，与试验支架的剪切性能进行对比，研究不同规格LRBs在不同剪切阶段产生的最大剪切力、耗能、等效剪切刚度、初始滑动位移和滑动距离等参数的变化。结果表明：对于相同规格的LRB，时效不影响其最大剪切力，但随着时效时间的延长，橡胶材料的硬度和耗能增加，初始滑动距离随时效时间的延长而减小；对于不同参数的LRB，在相同时效时间下，最大剪切力和能量耗散随剪切变形的增加而增加，等效剪切刚度随剪切程度的增加而减小。最大剪切力、耗能和初始剪切刚度随形状系数和直径的增大而增大。LRB的层数不影响最大剪切力，但能量耗散随层数的增加而增加，等效剪切刚度随层数的增加而减小。LRB的形状因子、直径和层数越大，越容易发生滑移。因此，在实际工程设计中，应综合考虑支座参数对LRB抗剪性能的影响。

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引用次数: 0

Optimization of box girder bridge widening techniques: Reinforced Rib vs. Strut solutions 箱梁桥加宽技术的优化：加强肋与支撑解决方案

IF 2.2 Q2 ENGINEERING, MULTIDISCIPLINARY

Applications in engineering science

Pub Date : 2025-05-10 DOI: 10.1016/j.apples.2025.100228

Dac-Duc Nguyen

Optimizing existing bridge infrastructure is crucial with the increasing demands of urbanization and traffic. This study investigates methods to enhance the structural performance of single-cell box girder bridges by implementing reinforcing ribs and struts. Focusing on the Tan De Bridge in Thai Binh, Vietnam - a cantilever bridge using a single-cell box girder, the research evaluates load-bearing capacity, deflection, and torsional resistance across three cross-sectional designs: the original single box girder, a box girder with transverse stiffening ribs, and a strutted box girder. The study uses ANSYS Mechanical software for three-dimensional modeling and simulation to examine natural vibration frequencies, stress distribution, and deflection under HL93 loading conditions. ANSYS Mechanical's finite element analysis capabilities allow for a detailed assessment of local and global structural behaviors, providing insights into the different cross-sections' dynamic stability and stress responses. Results indicate that reinforcing ribs and struts significantly improve the bridge's structural integrity. Reinforcing ribs offer superior cross-bridge stiffness, while struts provide optimal stress distribution and reduce flange instability. The study highlights the exceptional flexural resistance of the strutted box girder under eccentric loading, underscoring its potential to optimize bridge design for urban infrastructure demands while ensuring robust structural performance. These findings emphasize the effectiveness of these methods in meeting urban infrastructure needs by facilitating the expansion of bridge width while preserving structural stability and performance.

随着城市化和交通需求的不断增长，优化现有桥梁基础设施至关重要。本文研究了通过加强肋和支来提高单格箱梁桥结构性能的方法。以越南Thai Binh的Tan De大桥为研究对象——一座使用单单元箱梁的悬臂桥，研究评估了三种截面设计的承重能力、挠度和抗扭能力：原始的单箱梁、带有横向加劲肋的箱梁和有支撑的箱梁。本研究采用ANSYS机械软件进行三维建模和仿真，研究了HL93加载条件下的固有振动频率、应力分布和挠度。ANSYS机械有限单元分析功能允许对局部和整体结构行为进行详细评估，提供对不同截面的动态稳定性和应力响应的见解。结果表明，加强肋、支结构可以显著提高桥梁的结构完整性。加强肋提供卓越的跨桥刚度，而支撑提供最佳的应力分布和减少法兰不稳定。该研究强调了支撑箱梁在偏心荷载下的特殊抗弯能力，强调了其在确保坚固结构性能的同时优化城市基础设施需求桥梁设计的潜力。这些发现强调了这些方法在满足城市基础设施需求方面的有效性，通过促进桥梁宽度的扩大，同时保持结构的稳定性和性能。

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引用次数: 0