间隙对两轴液压振动试验系统动力学影响的研究

文 祥;陈章位;贺惠农

振动与冲击 ›› 2014, Vol. 33 ›› Issue (1) : 149-153.

PDF(2023 KB)
PDF(2023 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (1) : 149-153.
论文

间隙对两轴液压振动试验系统动力学影响的研究

  • 文 祥1 2, 陈章位2, 贺惠农3
作者信息 +

Investigation of joint clearance effects on the dynamics of two-axis hydraulic vibration test system

  • WEN Xiang1 2, CHEN Zhang-wei2, HE Hui-nong 3
Author information +
文章历史 +

摘要

为了分析间隙对两轴液压振动试验系统动力学响应的影响,建立了间隙副连续碰撞力学模型,将含间隙副的系统模型导入 ADAMS中进行仿真分析,同时,搭建了一套实验系统并进行了简谐异步激振输入下的实验分析。仿真和实验结果表明:在激振器异步且运动副间隙尺寸一定的情况下,两个激振器之间产生了耦合振动效应,其稳态输出加速度响应有明显的波动,同时,随着激振频率和激振幅值的增加,系统峰值加速度响应急剧增加。因此,为了消除间隙副非线性因素的影响,合理设计两轴激振试验系统转动副间隙具有重要意义。

Abstract

Continuous contact force model is built in order to investigate joint clearance effects on the dynamics of two-axis hydraulic vibration test system. Test system with clearance joint is imported into the software ADAMS for dynamic simulation, and an experimental set-up is designed and built to achieve some experimental validations under the simple harmonic excitation inputs with different phase, results indicate that coupling vibration effect between two exciters leads to the apparent fluctuation of steady response of accelerations in the case of certain clearance size and excitations out of phase, meanwhile, rapid increase of peak acceleration happens when the excitation frequency and excitation amplitude increase. Thus, selection of clearance size in revolute joint for two-axis hydraulic vibration test system has a critical role in eliminating the non-linear influence。



关键词

两轴液压振动 / 间隙 / 异步 / 耦合振动 / 非线性。

Key words

Two-axis hydraulic vibration / Clearance / Out of phase / Coupling vibration / Non-linear

引用本文

导出引用
文 祥;陈章位;贺惠农. 间隙对两轴液压振动试验系统动力学影响的研究[J]. 振动与冲击, 2014, 33(1): 149-153
WEN Xiang;CHEN Zhang-wei;HE Hui-nong . Investigation of joint clearance effects on the dynamics of two-axis hydraulic vibration test system[J]. Journal of Vibration and Shock, 2014, 33(1): 149-153

PDF(2023 KB)

Accesses

Citation

Detail

段落导航
相关文章

/