Abstract
It is important to clarify the frictional sliding characteristics of unstable vibration, such as stickslip motion, for the design of machine elements and constructions. Especially, wear of machine elements is accelerated, and acoustic emission system and machine life are also highly affected by stick-slip motion. In this study, the time-dependent subloading-friction model, which can rationally describe the reciprocal transition of static-kinematic frictions, is applied to the analysis of stick-slip motion. Concretely, one-dimensional model of spring-mass system is implemented by incorporating the present friction model. The model is then applied to simulations of stick-slip motion under various conditions. It is shown by the present simulations that an unstable region of stick-slip motion in the (K-μ) plane, and effect of time-and state-dependent parameters on the stick-slip amplitude.
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