本帖最后由 apprent 于 2013-3-18 22:02 编辑
现在原因还没查清楚，但是，如果说是制动器垫片打滑、变形的话，与我们的情况相符合。但是，怎么去检验呢？
我只是说偏航系统的重要作用，并不是说偏航系统本身会造成多大的振动
J. Behrendt, C. Weiss, N.P. HoffmannA numerical study on stick–slip motion of a brake pad in steady slidingJournal of Sound and Vibration, Volume 330, Issue 4, 14 February 2011, Pages 636-651, ISSN 0022-460X, 10.1016/j.jsv.2010.08.030.(http://www.sciencedirect.com/science/article/pii/S0022460X10005572)Abstract: A numerical model for an elastic brake pad sliding under constant load and with constant velocity over a rigid surface is investigated by finite element analysis. The geometry is taken to be two-dimensional, the contact is assumed to follow the laws of continuum mechanics and temporal and spatial resolution are such that dynamical effects localized at the interface are resolved. It turns out that at the contact interface localized slip events occur either in the form of long-lasting slip pulses, or in the form of brief local relaxations. Macroscopically steady sliding, macroscopic stick–slip motion or slip–separation dynamics occurs, depending on the macroscopic relative velocity. While structural oscillations of the brake pad do not seem to play a significant role during steady sliding at least one structural oscillation mode becomes synchronized with the interfacial dynamics during stick–slip or slip–separation motion. Assuming a given friction law for the interface, the macroscopically observed friction coefficient depends considerably on the underlying dynamics on the interface.
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显身卡
发表于 2013-2-19 09:20
