Simulation Study on the Vibration Response of an EV Power Train Considering the Fluid-structure Coupling

Chen Shiyang; Yu Peng; Zhang Tong; Guo Rong

doi:10.16578/j.issn.1004.2539.2016.02.003

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Simulation Study on the Vibration Response of an EV Power Train Considering the Fluid-structure Coupling

更新时间：2022-10-20

- Simulation Study on the Vibration Response of an EV Power Train Considering the Fluid-structure Coupling
- Vol. 40, Issue 2, Pages: 10-14(2016)
- 作者机构：
  
  1. 同济大学新能源汽车工程中心
  2. 同济大学汽车学院
  3. 同济大学中德学院
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2016.02.003
  CLC：
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[1]陈诗阳,于蓬,章桐,郭荣.考虑流固耦合的动力总成振动响应仿真研究[J].机械传动,2016,40(02):10-14.

Chen Shiyang, Yu Peng, Zhang Tong, et al. Simulation Study on the Vibration Response of an EV Power Train Considering the Fluid-structure Coupling. [J]. 40(2):10-14(2016)
[1]陈诗阳,于蓬,章桐,郭荣.考虑流固耦合的动力总成振动响应仿真研究[J].机械传动,2016,40(02):10-14. DOI： 10.16578/j.issn.1004.2539.2016.02.003.

Chen Shiyang, Yu Peng, Zhang Tong, et al. Simulation Study on the Vibration Response of an EV Power Train Considering the Fluid-structure Coupling. [J]. 40(2):10-14(2016) DOI： 10.16578/j.issn.1004.2539.2016.02.003.

摘要

以某款集中驱动式电动车的动力总成为研究对象,考虑冷却液和润滑油的影响,建立详细的流体-机械耦合模型,进行模态及动态响应研究。首先,对比流固耦合模态仿真和动力总成模态试验结果,证明所提综合耦合模型的准确性;然后,单独考虑冷却液和润滑油的影响,分别建立考虑冷却液的模型和考虑润滑油的模型,通过模态仿真分析两类液体对动力总成固有频率的影响程度;最后,进行流固耦合模型在电机电磁激励下的振动响应仿真,并与不考虑液体影响的原始模型仿真结果进行对比分析。结果表明,所提综合耦合模型能够充分考虑冷却液、润滑油及机械部件对总成振动的影响,展现丰富的动力学现象,可为进一步的优化设计提供有效地仿真平台。

Abstract

Taking a centralized drive electric vehicle power train as study object,considering the influence of coolant and lubricating oil,the fluid- structure model is established. The modal and vibration response of the model is researched. First,the fluid- structure model is proved to be correct by comparing its simulation result with the experimental result. Then,other two kinds of fluid- structure model,each one of which involved one kind of fluid,are established. The different influence degree of these two kinds of fluid on the model natural frequency is analyzed through modal simulation. At last,the power train vibration response under electromagnetic excitation is obtained by simulation,and it is compared with the result of the original model. The result indicates,that various dynamics phenomenon are showed by the model which considering the fluid- structure model with coolant,lubricating oil and mechanical components and the foundation for the subsequent optimization design is provided.

关键词

动力总成流固耦合模态分析振动响应

Keywords

Power trainFluid-structure couplingModal analysisVibration response

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