Modeling of a Finger-Follower Cam System With Verification in Contact Forces-Reference-Cited by-同舟云学术

Modeling of a Finger-Follower Cam System With Verification in Contact Forces

Published:1996-03-01 Issue:1 Volume:118 Page:132-137
ISSN:1050-0472
Container-title:Journal of Mechanical Design
language:en
Short-container-title:

Author:

Hsu Wensyang¹,Pisano A. P.²

Affiliation:

1. Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan R. O. C.

2. Department of Mechanical Engineering, University of California at Berkeley, Berkeley, CA 94720

Abstract

A lumped/distributed-parameter dynamic model is developed to investigate the dynamic responses of a finger-follower cam system by considering a hydraulic lash adjuster with an oscillating pivot, and frictional forces between sliding surfaces. The measured force data at low speed are employed to derive an algorithm to determine the dynamic Coulomb friction coefficients at contact points. The contact position between the cam and the follower with moving pivot is determined by a constraint equation method. A hydraulic lash adjuster acting as the pivot of the follower is also modeled with the effects of oil compressibility and oil refill mechanism. Simulated contact forces at three different speeds are shown to have good agreement with experimental data. The separation between the hydraulic lash adjuster and the follower is predicted at a camshaft speed of 2535 rpm, and experiment indicates at 2520 rpm.

Publisher

ASME International

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/mechanicaldesign/article-pdf/118/1/132/5575257/132_1.pdf

Reference14 articles.

1. Adam M. , BakajL., and WoyandH., 1990, “Application of Numerical Simulation for the Analysis of the Dynamic Behavior of Valve Train Systems,” Int. J. of Vehicle Design, Vol. 11, No. 3, pp. 281–291.

2. Chan C. , and PisanoA. P., 1987, “Dynamic Model of a Fluctuating Rocker-Arm Ratio Cam System,” ASME JOURNAL OF MECHANISMS, TRANSMISSIONS, AND AUTOMATION IN DESIGN, Vol. 109, pp. 356–365.

3. Hanachi, S., and Freudenstein, F., 1986, “The Development of a Predictive Model for the Optimization of High-Speed Cam-Follower Systems With Coulomb Damping Internal Friction and Elastic and Fluid Elements,” ASME JOURNAL OF MECHANISMS, TRANSMISSIONS, AND AUTOMATION IN DESIGN, Vol. 108.

4. Hatch, C., and Pisano, A. P., 1991, “Modeling, Simulation, and Modal Analysis of a Hydraulic Valve Lifter With Oil Compressibility Effects,” ASME JOURNAL OF MECHANICAL DESIGN, Vol. 113.

5. Hrones, J. A., 1948, “An Analysis of the Dynamic Forces in a Cam-Driven System,” Transactions of the ASME, Vol. 70.

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