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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/32101

Title: Analysis of Mechanical Errors in Disc Cam Mechanisms
Authors: L-I Wu;W-T Chang
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
Keywords: disc cam mechanism;mechanical error;equivalent inkage;tolerance
Date: 2005-02
Issue Date: 2012-06-15T07:21:25Z
Publisher: Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Abstract: Abstract:This paper presents an analytical method for analysing the mechanical errors of disc cam mechanisms. With the aid of parametric expressions of the cam profile and by employing the concept of equivalent linkage, the error of the follower motion that is due to the variation in each design parameter can be determined analytically. The resulting error equations do not really involve the location of the curvature centre of the cam profile, and thus locating the curvature centre of the cam profile is not essential. The method is validated through analysing a cam mechanism that has an invariant equivalent linkage, and thus an exact solution is available. Compared with the exact solutions, the predicted results have at least four-figure accuracy. For the roller follower cases, the pressure angle has most effect on the resulting error. Owing to the counteraction of the shift angle, the resulting error due to the radial dimension error of the cam profile has relatively smaller variation. In the worst case, owing to the combined effects of various design parameters, the accuracy of the follower motion may degrade considerably. The acceleration error functions have a sudden change at the ends of the motion.
Relation: 219(2), pp.209-224
URI: http://ntour.ntou.edu.tw/handle/987654321/32101
Appears in Collections:[機械與機電工程學系] 期刊論文

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