Effects of Design Parameters on Bouncing Vibrations of a Single-DOF Contact Slider and Necessary Design Conditions for Perfect Contact Sliding
Effects of Design Parameters on Bouncing Vibrations of a Single-DOF Contact Slider and Necessary Design Conditions for Perfect Contact Sliding
复制标题
设计参数对单自由度接触滑块弹跳振动的影响及完美接触滑动的必要设计条件
DOI：
10.1115/1.2834109
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发表时间：
1999
影响因子：
2.5
通讯作者：
Kan Takahashi
中科院分区：
文献类型：
--
作者：
K. Ono;K. Lida;Kan Takahashi
通过计算机仿真和理论分析，研究了IDOF接触滑块模型在谐波波形圆盘表面上的弹跳振动的一般特性。从接触滑动和耐磨性两个方面讨论了接触滑块与磁盘表面的设计条件。发现弹跳振动随着相对于静态穿透深度δ的接触谐振频率fi（=（1/2π）μ k c /m）或相对于极限临界频率fr的波纹幅度A（fi）的量而变化，在极限临界频率fr以上，由于滑块负载，盘表面的向下加速度大于滑块的向下加速度。当接触刚度足够大使得6A（f，）（f，cl > f，）时，在接触共振附近发生弹跳振动，类似于非线性软弹簧系统的共振。在此，通过增大接触阻尼比、减小滑块质量和波度振幅，可以完全消除跳动振动。
The general characteristics of the bouncing vibrations of a IDOF contact slider model over the surface of a harmonic wavy disk were studied both by computer simulation and theoretical analysis. The necessary design conditions for a contact slider and the surface of a disk were discussed in terms of perfect contact sliding and wear durability. It was found that the bouncing vibrations change with the amount of waviness amplitude A(f,) at the contact resonant frequency f, (= (1/2π)√k c /m) relative to static penetration depth 6, or f r relative to limiting critical frequency f cl , above which the downward acceleration of the surface of a disk is larger than that of a slider due to slider load. When the contact stiffness is large enough so that 6 A(f,) (f cl > f,), bouncing vibrations occur near the contact resonance, similar to the resonance of a nonlinear soft spring system. Here, the bouncing vibration can be completely eliminated by increasing the contact damping ratio and decreasing the slider mass and the waviness amplitude.