【摘要】 综合分析了线性、渐硬和渐软恢复力滑移系统自由振动的停滞区,给出了三种滑移系统停滞区的解析解;论证了解的连续性和随系统参数变化的规律性。结果表明:滑移系统的停滞区在系统参数的整个取值范围内处处连续;随摩擦系统单调增加,而随系统的线性与非线性恢复力参数单调减小;相对于线性恢复力滑移系统,弹簧的软化至多可使停滞区增加50%;渐软恢复力参数有一个下限,低于此限的软化系统没有停滞区。更多还原

【Abstract】 The backwater regions of the free vibration of sliding systems with linear, hardening or softening restoring force are analyzed comprehensively; relevant analytical solutions are obtained; the continuity and regularity of these solutions changing with the system parameters are demonstrated. The results show that the backwater regions of the sliding systems are continuous everywhere in the whole domain of the system parameters, increasing monotonously with the friction coefficient and decreasing with the linear and non-linear restoring force parameters. Relative to the system with a linear restoring force, the backwater region of the softening system can be increased by 50% at most; the softening parameter should be kept above a lower limit, otherwise the softening system will be lack of backwater regions.更多还原