Solving the Kinematics of Planar Mechanisms

Author:

Wampler C. W.1

Affiliation:

1. Enterprise Systems Laboratory, General Motors Research and Development, 30500 Mound Road, Warren, Michigan 48090-9055

Abstract

This paper presents a general method for the analysis of planar mechanisms consisting of rigid links connected by rotational and/or translational joints. After describing the links as vectors in the complex plane, a simple recipe is outlined for formulating a set of polynomial equations which determine the locations of the links when the mechanism is assembled. It is then shown how to reduce this system of equations to a generalized eigenvalue problem, or in some cases, a single resultant polynomial. Both input/output problems and tracing-curve equations are treated.

Publisher

ASME International

Subject

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

Reference19 articles.

1. Bricard, R., 1927, Lec¸ons de Cine´matique, Tome II, pp. 301–311.

2. Cayley A. , 1876, “On Three-bar Motion,” Proc. London Math. Soc., Vol. VII, pp. 136–166.

3. Darboux, G., 1879, “De l’emploi des fonctions elliptiques dans la the´orie du quadrilate`re plan,” Bull. des Sciences, math. et astronom. 2e serie T. III, pp. 109–128.

4. Dhingra, A. K., Almadi, A. N., and Kohli, D., 1998, “A Framework for Closed-form Displacement Analysis of 10-link 1-dof Mechanisms,” Proc. ASME Des. Eng. Tech. Conf., Sept. 13–16, Atlanta, GA, paper DETC98/MECH-5885.

5. Groenman, J. T., 1950, “Behandeling van de koppelkromme met behulp van isotrope coo¨rdinaten,” Ph.D. Thesis, Technische Hogeschool te Delft.

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