期刊文献+

汽车减振器外特性仿真与试验分析 被引量:4

Outer characteristics simulation and experimental analysis of automotive shock absorbers
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摘要 基于减振器的工作原理、内部结构和阀系特性,利用环形薄板阀片变形微分方程以及内外径处的边界条件推导环形阀片受均布载荷作用时的挠曲变形解析式,根据流体力学缝隙流动、管嘴流动理论、薄壁小孔节流理论,建立了双筒液压减振器的详细数学模型。采用MATLAB软件进行仿真研究,计算结果与试验数据符合较好。同时用该模型分析减振器补偿阀及流通阀对减振器阻尼力的影响规律及敏感程度,得出的结论可以为减振器的设计和性能预测提供参考。 Based on the working principle, internal configuration, and valve system behavior of the shock absorber, the equation of annular laminar deformation under uniform load was deduced in accordance with differential equation tbr throttle slice deflection and corresponding boundary conditions. According to the theories of hydrodyttandc~ gap flow, nozzle flow and small orifice throttling, mathematical model of working procedure was established. The Matlab software was used to simulate the detailed model of an automotive shock absorber. The calculated results agree well with the test data. In particular, the effects and sensitivity degrees of the suction valve and intake valve on the shock absorbel damping were analyzed by using the model. The obtained results provide a reference for shock absorber desigu and performance prediction.
出处 《振动与冲击》 EI CSCD 北大核心 2011年第8期92-96,共5页 Journal of Vibration and Shock
基金 高等学校博士学科点专项科研基金资助课题(20100191110004) 汽车噪声振动和安全技术国家重点实验室2010年度开放基金资助(NVHSKL-201010)
关键词 减振器 数学模型 外特性 仿真 试验 shock absorber mathematical model outer characteristics simulation experiment
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参考文献10

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二级参考文献21

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共引文献91

同被引文献29

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