Tolerance synthesis method for an industrial crank-rocker application

Mark M. Benner, Arthur G. Erdman

Research output: Contribution to conferencePaperpeer-review

3 Scopus citations


An emphasis on reducing product development lead-times in the automotive industry has received much attention recently. The synthesis and design of windshield wiper drive mechanisms is no exception. This paper examines and develops the new concept of performance synthesis for crank-rocker linkages with two prescribed positions as applied to windshield wiper systems. Various performance criteria are evaluated with respect to the effect on the desired motion of the crank-rocker linkage by manufacturing tolerances, elastic deflections and joint clearances. Three performance criteria are mapped in the crank-rocker synthesis solution space to aid in the selection of solutions when considering the performance demands of the windshield wiper system. A case study is presented to demonstrate the effectiveness of the new performance synthesis concept which simultaneously considers position tolerance sensitivity, transmission angles and angular acceleration magnitudes in the synthesis process.

Original languageEnglish (US)
Number of pages11
StatePublished - Dec 1 1992
EventASME 1992 Design Technical Conferences, DETC 1992 - Scottsdale, United States
Duration: Sep 13 1992Sep 16 1992


ConferenceASME 1992 Design Technical Conferences, DETC 1992
Country/TerritoryUnited States

Bibliographical note

Funding Information:
The first author would like to thank General Motors Corporation for their support through the GM Fellowship Program. The second author would like to thank the National Science Foundation for their support under Grant No. MSS- 9012456. Also, the insights of Thomas R. Chase are greatly appreciated.

Publisher Copyright:
© 1992 American Society of Mechanical Engineers (ASME). All rights reserved.


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