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根据设计的实验装置.对含有单一滑面岩石试件滑动过程进行模拟实验研究,得到了滑动过程、动摩擦阻力系数、阻尼系数等随滑动速度的变化规律,同时测得动摩擦力系数、阻尼系数随压力的变化关系。实验证实在一定的速度范围内,随着滑块的相对滑动速度不断增加,阻尼力反而减小,这种现象就是负阻尼。
According to the design of the experimental device. The sliding experiment of a rock specimen with a single sliding surface was carried out in a simulation experiment, and the law of sliding process, dynamic friction resistance coefficient, damping coefficient, etc. with sliding velocity was obtained. At the same time, the relationship between dynamic friction coefficient and damping coefficient with pressure was measured. The experiment confirmed that within a certain speed range, as the slider’s relative sliding speed increases, the damping force decreases instead. This phenomenon is negative damping.