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基于流-固耦合的车辆减振器动态非线性仿真分析

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Keywords: 车辆工程,油-气混合型减振器,阻尼力动态响应特性,流-固耦合,有限元分析

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Abstract:

基于流-固耦合有限元方法,利用ADINA软件建立了高精度的叠加节流阀片有限元网格模型和流场有限元网格模型,并在ADINA软件后处理模块中进行求解分析,得到了减振器阻尼力-速度分段特性、示功特性、阀系内部的压力场和速度场特性,分析了减振器阀系动态非线性特性。结果表明:在高速减振器油的冲击下,阀系内部区域的压力场变化明显;达到开阀压力时,油液流动速度呈现跳跃变化,使得阻尼通道压力迅速变化。这说明叠加节流阀片有限元网格模型和流场有限元网格模型的精度对仿真结果影响最大。在流-固耦合计算中考虑了流体湍流流动、阀片接触和大位移变形,尽量使仿真模型与物理模型保持一致,试验结果与仿真结果吻合较好。

References

[1]  周长城,顾亮. 筒式减振器叠加节流阀片开度特性试验[J].机械工程学报,2007,43(6):210-215.Zhou Chang-cheng,Gu Liang. Superposition throttle-slices opening size and characteristic test of telescope-damper[J]. Chinese Journal of Mechanical Engineering,2007,43(6):210-215.
[2]  黄恒,程广伟,邓楚南.车用减振器的外特性建模与仿真[J]. 汽车技术, 2005, 24(11): 19-22.Huang Heng,Cheng Guang-wei,Deng Chu-nan. Modeling and simulation of external characteristic of automotive shock absorbers[J].Automobile Technology,2005, 24(11): 19-22.
[3]  檀润华, 陈鹰,赵凡,等.汽车减震器新型数学模型的研究[J]. 汽车工程,1998, 20(2):113-117.Tan Run-hua,Chen Ying,Zhao Fan, et al. A new mathematical model for shock absorbers in motor vehicles[J]. Automotive Engineering,1998, 20(2):113-117.
[4]  Duym S W R. Simulation tools, modelling and dentification, for an auto-motive shock absorber in the context of vehicle dynamics[J]. Vehince System Dynamics,2000,33:261-285.
[5]  Lang H H. A study of the characteristics of automotive hydraulic dampers at high stroking frequencies[D]. USA:University of Michigan, 1997.
[6]  Duym S, Stiens R, Reybrouck K. Evaluation of shock absorber models[J]. Vehicle System Dynamics, 1997, 27: 109-127.
[7]  Bathe K J. ADINA theory and modeling guide report ARD01-9[R]. New York:ADINA Co. Ltd., 2001: 235-262.
[8]  姜海晨,张娜,于振环. 减振器叠加节流阀片非线性特性仿真分析[J].计算机仿真,2012,29(5):338-342.Jiang Hai-chen,Zhang Na,Yu Zhen-huan. Nonlinear characteristics simulation analysis of shock absorber throttle valves[J]. Computer Simulation,2012,29(5):338-342.
[9]  Bathe K J. ADINA-F theory and modeling guide:ARD08-9[R]. New York:ADINA Co. Ltd.,2008:26-28,230-262.

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