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TECHNICAL PAPERS

Initial Estimates in the Design of Central-Lever Steering Linkages

[+] Author and Article Information
P. A. Simionescu

Dept. of Mechanical Engineering, Auburn University, Auburn, AL 36849e-mail: pasimi@eng.auburn.edu

M. R. Smith

Dept. of Mechanical, Materials and Manufacturing Engineering, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UKe-mail: m.r.smith@ncl.ac.uk

J. Mech. Des 124(4), 646-651 (Nov 26, 2002) (6 pages) doi:10.1115/1.1505853 History: Received January 01, 2000; Online November 26, 2002
Copyright © 2002 by ASME
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References

Figures

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The central-lever steering linkage (also known as bell-crank steering mechanism)
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Triple-joint planar central-lever steering linkage in the reference position
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Overconstrained mechanism showing that the transmission function of an adjacent-joint central-level mechanism (a bell crank mechanism) can be exactly reproduced by a triple-joint variant of the same
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2 DOF associated mechanism used in the definition of objective functions F1 and F2
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3D plots of the objective function F2 in case of lC/l=1.25 (a) and lC/l=−1.25 (b), and for l=0.16 and Wb/Wt=1.9
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3D plots similar to Fig. 5(a) and (b) respectively, corresponding to an objective function equal to the maximum norm of the steering error
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Parametric design chart for trailing central-lever steering linkages with outer central lever (1: Wb/Wt=1.4; 3: Wb/Wt=1.9; 5: Wb/Wt=2.4)
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Parametric design chart for trailing central-lever steering linkages with inner central lever (1: Wb/Wt=1.4; 2: Wb/Wt=1.6; 3: Wb/Wt=1.9; 4: Wb/Wt=2.2; 5: Wb/Wt=2.4)
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Parametric design chart for leading central-lever steering linkages with outer central lever (1: Wb/Wt=1.4; 3: Wb/Wt=1.9; 5: Wb/Wt=2.4)
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Parametric design chart for leading central-lever steering linkages with inner central lever (1: Wb/Wt=1.4; 2: Wb/Wt=1.6; 3: Wb/Wt=1.9; 4: Wb/Wt=2.2; 5: Wb/Wt=2.4)
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Design charts for a trailing linkage with no lC variation sensitivity
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Design charts for a leading linkage with no lC variation sensitivity
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Geometric transformations for obtaining a bell-crank cognate mechanism of a triple-joint central lever mechanism

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