多流道液压支架的时域响应分析

IF 0.7 Q4 ENGINEERING, MECHANICAL
Zhihong Lin, Chunrong Wang, Yunxiao Chen, Mingzhong Wu, Feijie Zheng, Jian Wei
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引用次数: 0

摘要

为了分析长、短惯性通道和孔板流道组合对液压支架时域响应的影响。首先,提出了6种不同惯量通道和孔板流道组合的液压支架。然后,采用集总参数法推导了6种液压悬置结构的动刚度和上腔压力传递函数。其次,利用卷积法得到了6个液压支架在稳态激励和阶跃激励下的传递力和上腔压力的时域解析公式。最后,将解析公式与AMEsim建立的液压悬置模型进行了比较;同时,分析了惯量通道、阻尼、孔板流道阻尼等惯量项对液压支架传递力的影响;分析了不同结构形式下传递力变化和激励幅值对液压支架阻尼的影响。研究表明,惯性通道和孔板流道直接影响液压支架的低频动态特性。同时,液压支架的有效阻尼高度取决于激励幅值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Time domain response analysis of multi-flow channel hydraulic mount
In order to analyze the effect of the combination of long and short inertia channels and orifice flow channels on the time domain response of hydraulic mounts. Firstly, six hydraulic mounts with different combinations of inertia channels and orifice flow channels are proposed. And then, the transfer functions of dynamic stiffness and upper chamber pressure for six structures of hydraulic mounts are derived using the lumped parameter method. Next, the time domain analytic formulas for the transfer force and upper chamber pressure for six structural hydraulic mounts under steady-state excitation and step excitation are obtained using the convolution method. Finally, the analytical formula is compared with the hydraulic mount’s model built by AMEsim; Meanwhile, the effects of inertia terms of inertia channels, damping, and damping of orifice flow channels on hydraulic mounts transfer forces are analyzed; Analyze the effect of transfer force variation and excitation amplitude on hydraulic mounts damping for different configurations of structures. Research shows that inertia channels and orifice flow channels directly affect the low-frequency dynamic characteristics of hydraulic mounts. At the same time, the effective damping height of the hydraulic mounts depends on the excitation amplitude.
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来源期刊
Journal of Vibroengineering
Journal of Vibroengineering 工程技术-工程:机械
CiteScore
1.70
自引率
0.00%
发文量
97
审稿时长
4.5 months
期刊介绍: Journal of VIBROENGINEERING (JVE) ISSN 1392-8716 is a prestigious peer reviewed International Journal specializing in theoretical and practical aspects of Vibration Engineering. It is indexed in ESCI and other major databases. Published every 1.5 months (8 times yearly), the journal attracts attention from the International Engineering Community.
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