Safety-design criteria of sliding systems for preventing friction-induced vibration
Safety-design criteria of sliding systems for preventing friction-induced vibration
复制标题
DOI：
10.1016/j.jsv.2009.02.027
复制
发表时间：
2009-07-24
影响因子：
4.7
通讯作者：
Maegawa, Satoru
中科院分区：
文献类型：
--
作者：
Nakano, Ken;Maegawa, Satoru
为了获得防止摩擦引起的振动的安全设计准则，对带有摩擦的单自由度系统进行了无量纲分析和数值模拟。该模型包括静摩擦和动摩擦之间的不连续性以及动摩擦系数对相对速度的依赖性。无量纲描述将参数数量从九个减少到五个；五个无量纲参数中的四个控制摩擦引起的振动的发生极限。我们在先前对库仑摩擦模型中粘滑运动的研究的基础上推导了出现极限方程，并用四个参数构造了判别不等式。它们是防止摩擦引起的振动的充分条件，即不仅防止粘滑，而且防止稳定滑动的不稳定；他们有望提供具有高可用性和高精度的滑动系统的安全设计标准。 (C) 2009 Elsevier Ltd. 保留所有权利。
In order to acquire safety-design criteria for preventing friction-induced vibration, dimensionless analysis and numerical simulation have been conducted for a single-degree-of-freedom system with friction. The model includes the discontinuity between static and kinetic friction and the dependence of the kinetic friction coefficient on the relative velocity. Dimensionless description reduces the number of parameters from nine to five; four of the five dimensionless parameters control the occurrence limit of friction-induced vibration. We have derived the occurrence-limit equation on the basis on a previous study on stick-slip in the Coulomb friction model, and we have constructed the discriminant inequalities with the four parameters. They are sufficient conditions for preventing friction-induced vibration, i.e., not only stick-slip but also instability of steady sliding; they are expected to provide safety-design criteria of sliding systems with high usability and high accuracy. (C) 2009 Elsevier Ltd. All rights reserved.