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A three-dimensional analytical model and parameter determination method of the elastic vibration of a railway vehicle carbody
Vehicle System Dynamics ( IF 3.6 ) Pub Date : 2019-03-14 , DOI: 10.1080/00423114.2019.1590606
Yuki Akiyama 1 , Takahiro Tomioka 2 , Tadao Takigami 1 , Ken-ichiro Aida 1 , Takayoshi Kamada 3
Affiliation  

ABSTRACT Reducing railway vehicles’ three-dimensional (3D) elastic vibration is needed to improve passenger comfort. This paper presents a 3D analytical model and parameter determination method for the elastic vibration of a carbody. The carbody is modelled as a simple box-type structure consisting of an anisotropic 3D elastic body treated as a continuous system. This model can express complicated 3D elastic vibration (such as lateral–vertical coupled vibration) with fewer degrees of freedom and at a lower computational cost than the detailed finite element model. A model parameter determination method using particle swarm optimisation was also proposed. Application to a Shinkansen-type test vehicle showed good agreement between measured and calculated results with a maximum natural frequency differences of the targeted six elastic vibration modes within 0.86%, indicating the effectiveness of the proposed model and parameter determination method.

中文翻译:

一种轨道车辆车体弹性振动三维解析模型及参数确定方法

摘要 减少铁路车辆的三维 (3D) 弹性振动需要提高乘客的舒适度。本文提出了一种车体弹性振动的 3D 解析模型和参数确定方法。车体被建模为一个简单的箱型结构,由作为连续系统处理的各向异性 3D 弹性体组成。与详细的有限元模型相比,该模型可以用更少的自由度和更低的计算成本来表达复杂的 3D 弹性振动(例如横向-垂直耦合振动)。还提出了一种利用粒子群优化的模型参数确定方法。
更新日期:2019-03-14
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