考虑运动副间隙的机构动态特性研究

白争锋;赵 阳;赵志刚

振动与冲击 ›› 2011, Vol. 30 ›› Issue (11) : 17-20,4.

PDF(1620 KB)
PDF(1620 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (11) : 17-20,4.
论文

考虑运动副间隙的机构动态特性研究

  • 白争锋;赵 阳; 赵志刚
作者信息 +

Research on dynamic characteristics of mechanism with joint clearance

  • Bai Zheng-feng; Zhao Yang;Zhao Zhi-gang
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摘要

为了研究运动副间隙对机构系统动态特性的影响,建立一种改进的间隙非线性连续接触碰撞力的混合模型,同时采用修正的库仑摩擦模型描述间隙处的摩擦作用,然后将间隙接触碰撞模型嵌入到ADAMS多体系统动力学分析软件中,以曲柄摇杆机构为对象,建立了含间隙机构的动力学模型并进行动力学仿真分析,仿真结果可以准确地预测运动副间隙对机构动态特性的影响,为机构设计提供了参考和依据,并且建立的间隙接触碰撞力的混合模型拓展了间隙铰接触碰撞动力学建模与含间隙机构动力学特性的研究,有利于工程实际应用。

Abstract

In order to study the dynamic characteristic of mechanism with joint clearance, an improved hybrid contact model in the joint clearance is established. The friction effect is considered by using improved Coulomb friction model. Then the hybrid contact model in joint clearance is incorporated into ADAMS. For the crank follower mechanism, the dynamic model of mechanism with joint clearance is established and the dynamic simulation is carried out. The simulation results can predict the effects of clearance on the mechanism dynamic characteristic preferably, and which is the basis of mechanism design. The contact hybrid model for clearance in this paper develops the contact modeling of clearance and dynamic characteristics analysis of mechanism with joint clearance, and it is useful for engineering application.

关键词

运动副间隙 / 接触碰撞 / 摩擦 / 动态特性

Key words

joint clearance / contact / friction / dynamic characteristic

引用本文

导出引用
白争锋;赵 阳;赵志刚. 考虑运动副间隙的机构动态特性研究[J]. 振动与冲击, 2011, 30(11): 17-20,4
Bai Zheng-feng;Zhao Yang;Zhao Zhi-gang . Research on dynamic characteristics of mechanism with joint clearance [J]. Journal of Vibration and Shock, 2011, 30(11): 17-20,4

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