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首页|粘滞流体阻尼器的冲击实验及建模仿真

粘滞流体阻尼器的冲击实验及建模仿真

Impact Experiment of Viscous Fluid Damper and its Simulation

中文摘要英文摘要

建立了一种用于描述非牛顿流体阻尼器的冲击缓冲过程的数学模型,并对阻尼器进行相应的实验。利用实验结果对模型参数进行辨识,获得碰撞环节参数及阻尼器的阻尼系数和速度指数。结果表明,抗冲类阻尼器与普通流体阻尼器的设计不同,前者需考虑碰撞环节的参数,这些参数对碰撞冲击力峰值具有很大的影响。在缓冲环节中,阻尼力随时间延长近似线性下降,阻尼器具有良好的耗能特性。本文研究对抗冲类阻尼器的设计具有指导意义。

mathematic model which is used to describe the impacting and buffering process of a non-Newtonian fluid damper is built, and the corresponding experiment is carried out. Parameters in the model such as factors of the impact system, damping factor and velocity exponent of the damper are determined basing on experiment results. It turns out that there are differences between the anti-shock damper and traditional fluid damper design, and impact parameters in the former which have big influence on the maximum shock force and the width of the shock impulse, should be considered. Moreover, in the buffering process, the damping force is increasing in a nearly linear way which shows that the damper has good characteristic in energy absorbing. Researches in this paper can be used for the design of anti-shock damper.

华宏星、温肇东、焦素娟、孙靖雅

工程基础科学

阻尼器冲击缓冲抗冲击速度指数

ampershock bufferanti-shockvelocity exponent

华宏星,温肇东,焦素娟,孙靖雅.粘滞流体阻尼器的冲击实验及建模仿真[EB/OL].(2012-02-21)[2025-09-09].http://www.paper.edu.cn/releasepaper/content/201202-769.点此复制

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