基于SIMPACK的列车—轨道—桥梁耦合振动分析
发布时间：2018-07-20 16:43
【摘要】：随着商业多体动力学软件的发展,研究人员尝试通过商业多体动力学软件进行车桥耦合振动分析,并取得成功。与传统编程方法相比,使用商业多体动力学软件进行车桥耦合振动分析具有建模高效、建模过程可视化、通用性强等诸多优势。本文基于商业多体动力学软件SIMPACK,以京沪高速铁路为工程背景,对列车-轨道-桥梁耦合振动进行了分析研究,主要研究内容如下:(1)基于SIMPACK软件建立了经典的简化车辆模型和精细车辆模型,后者考虑悬挂弹簧阻尼作用点空间距离,并考虑轴箱转臂、横向止挡与垂向止挡。对这两种模型的动力特性以及在刚性路基上的行走性能进行了比对。(2)基于SIMPACK软件建立了轨道-桥梁多体系统模型。将轨道-桥梁结构视为左线钢轨、右线钢轨以及桥梁结构柔性体组成的多体系统,考虑扣件纵向阻力非线性,基于SIMPACK与ANSYS联合仿真方法,得到轨道-桥梁多体系统模型。(3)基于上述模型,建立了考虑轨道柔性的列车-轨道-桥梁多体系统模型,并计算了列车和桥梁的动力响应。分析了车辆模型精细化对车桥动力响应分析的影响。本文的计算方法及研究成果可以为我国高速铁路桥梁的设计计算提供参考依据。
[Abstract]:With the development of commercial multi-body dynamics software, researchers try to use commercial multi-body dynamics software to analyze the vehicle-bridge coupling vibration and obtain success. Compared with the traditional programming method, the commercial multi-body dynamics software for vehicle-bridge coupling vibration analysis has many advantages, such as high efficiency of modeling, visualization of modeling process, strong generality and so on. Based on the commercial multi-body dynamics software SIMPACKand taking the Beijing-Shanghai high-speed railway as the engineering background, the train-track bridge coupling vibration is analyzed and studied in this paper. The main research contents are as follows: (1) based on SIMPACK software, the classical simplified vehicle model and fine vehicle model are established. The latter takes into account the space distance of the action point of suspension spring damping, as well as the axle box rotating arm, the transverse stop and the vertical stop. The dynamic characteristics of the two models and their walking performance on rigid subgrade are compared. (2) based on SIMPACK software, a multi-body system model of rail-bridge is established. The track-bridge structure is regarded as a multi-body system composed of the left rail, the right rail and the flexible body of the bridge structure. Considering the nonlinearity of the longitudinal resistance of the fastener, the simulation method based on SIMPACK and ANSYS is used. (3) based on the above model, the train track bridge multi-body system model considering track flexibility is established, and the dynamic response of train and bridge is calculated. The influence of vehicle model refinement on the dynamic response of vehicle and bridge is analyzed. The calculation method and research results in this paper can provide reference for the design and calculation of high-speed railway bridges in China.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U441.3;U211.3
本文编号：2134131
[Abstract]:With the development of commercial multi-body dynamics software, researchers try to use commercial multi-body dynamics software to analyze the vehicle-bridge coupling vibration and obtain success. Compared with the traditional programming method, the commercial multi-body dynamics software for vehicle-bridge coupling vibration analysis has many advantages, such as high efficiency of modeling, visualization of modeling process, strong generality and so on. Based on the commercial multi-body dynamics software SIMPACKand taking the Beijing-Shanghai high-speed railway as the engineering background, the train-track bridge coupling vibration is analyzed and studied in this paper. The main research contents are as follows: (1) based on SIMPACK software, the classical simplified vehicle model and fine vehicle model are established. The latter takes into account the space distance of the action point of suspension spring damping, as well as the axle box rotating arm, the transverse stop and the vertical stop. The dynamic characteristics of the two models and their walking performance on rigid subgrade are compared. (2) based on SIMPACK software, a multi-body system model of rail-bridge is established. The track-bridge structure is regarded as a multi-body system composed of the left rail, the right rail and the flexible body of the bridge structure. Considering the nonlinearity of the longitudinal resistance of the fastener, the simulation method based on SIMPACK and ANSYS is used. (3) based on the above model, the train track bridge multi-body system model considering track flexibility is established, and the dynamic response of train and bridge is calculated. The influence of vehicle model refinement on the dynamic response of vehicle and bridge is analyzed. The calculation method and research results in this paper can provide reference for the design and calculation of high-speed railway bridges in China.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U441.3;U211.3
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