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Discrete Dynamics in Nature and Society
Volume 2016, Article ID 6142501, 8 pages
Research Article

Modeling and Nonlinear Response of the Cam-Follower Oblique-Impact System

1Institute of Vibration Engineering, Northwestern Polytechnical University, Xi’an 710072, China
2Guizhou Aero-Engine Research Institute, Guiyang 550081, China

Received 4 May 2016; Accepted 20 June 2016

Academic Editor: Massimiliano Ferrara

Copyright © 2016 Yong-Feng Yang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In order to quickly and accurately analyze the complex behavior of cam-follower oblique-impact system, a mathematical model which can describe separation, impact, and contact was established in this paper. The transient impact hypothesis was extended, and the oblique collision model was established by considering the tangential slip. Moreau time-stepping method was employed to solve the linear complementarity problem which transformed by the oblique-impact equations. The simulation results show that the cam and follower kept permanent contact when the cam rotational speed was low. With the increase of the cam rotational speed, the cam and follower would be separated and then impact under the gravity action. The system performance shows very complex nonlinear characteristics.