Mechanical Error Analysis of Disk Cam Mechanisms with a Flat-Faced Follower


          

刊名：Journal of Mechanical Science and Technology
作者：Wen-Tung Chang
Long-long Wu
刊号：780GA001
ISSN：1738-494X
出版年：2006
年卷期：2006, vol.20, no.3
页码：345-357
总页数：13
分类号：TH11
关键词：Disk Cam Mechanism；Mechanical Error Analysis；Equivalent Linkage；Tolerance；Flat-Faced Follower；Poppet Valve
参考中译：
语种：eng
文摘：By employing the concept of equivalent linkage, this paper presents an analytical method for analyzing the mechanical errors of disk cam mechanisms with a flat-faced follower, The resulting error equations do not really involve the location of the curvature center of the cam profile, and locating the curvature center of the cam profile is not essential. The resulting errors are significantly affected by the pressure angle, and the smaller pressure angle will result in the smaller mechanical error. In the worst case, owing to the joined effects of various design parameters, the accuracy of the follower motion may degrade considerably. For the oscillating follower case, all acceleration error functions have a sudden change at every beginning and at every end of the motion even though the theoretical follower displacement is cycloidal motion.



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