Initial Estimates in the Design of Central-Lever Steering Linkages

Author:

Simionescu P. A.1,Smith M. R.2

Affiliation:

1. Dept. of Mechanical Engineering, Auburn University, Auburn, AL 36849

2. Dept. of Mechanical, Materials and Manufacturing Engineering, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK

Abstract

Parametric design charts are proposed for the central-lever steering linkage, generated for simplified reference configuration mechanisms, the geometry of which is defined by only four parameters. This highlights the fact, yet not generally acknowledged, that the steering law ensured by a mechanism with adjacent central joints (known as bell crank mechanism), can be identically generated by a triple central joint variant of the same. Particular configurations are identified in which the length of the central lever does not affect the wheel-to-wheel transmission function of the mechanism, permitting a simplified synthesis for the cases in which the maximum stroke of the input member is imposed as a design specification.

Publisher

ASME International

Subject

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

Reference10 articles.

1. Rao, R. , 1968, “Steering Linkage Design. A Method of Determining the Configuration of the Steering Linkage so that the Geometry Conforms to Ackermann Principle,” Automot. Eng., 58, pp. 31–33.

2. Lukin, P., Gasparyants, G., and Rodionov, V., 1989, “Automobile Chassis. Design and Calculation,” Mir, Moscow.

3. Simionescu, P. A., and Beale, D., 2002, “Optimum Synthesis of the Four-Bar Function Generator in its Symmetric Embodiment: The Ackermann Steering Linkage,” Mech. Mach. Theory (to appear).

4. Duditza, Fl., and Alexandru, P., 1975, “Synthesis of the Seven-Joint Space Mechanism Used in the Steering System of Road Vehicles,” Proc. of The 5th World Congress on the Theory of Machines and Mechanisms, Newcastle upon Tyne, pp. 697-702.

5. Ardayfio, D. D., and Qiao, D., 1987, “Analytical Design of Seven-Joint Spatial Steering Mechanisms,” Mech. Mach. Theory, 22, pp. 315–319.

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