This paper presents the first complete and automated mobility identification method for a group of single-DOF planar eight-bar linkages and thus represents a breakthrough on the recognition and understanding of complex linkage mobility. The mobility identification in this paper refers to the configuration space, the range of motion, and configuration recognition. It is a troublesome problem encountered in any linkage analysis and synthesis. The problem becomes extremely confusing with complex multiloop linkages. The proposed approach is simple and straightforward. It recognizes that the loop equations are the mathematical fundamentals for the formation of branches, sub-branches, and other mobility issues of the entire linkage. The mobility information is then extracted through the discriminant method. The paper presents complete answers to all typical mobility issues, offers the mathematical insight as well as explanation on the effects of multiple loops via joint rotation space, and casts light for treating the mobility problems of other complex linkages. The merits of the discriminant method for mobility identification are clarified and examples are employed to showcase the proposed method. The computer-aided automated mobility analysis of eight-bar linkages is made possible for the first time.
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ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 15–18, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Design Engineering Division and Computers in Engineering Division
ISBN:
978-0-7918-4410-6
PROCEEDINGS PAPER
Mobility Identification of a Group of Single Degree-of-Freedom Eight-Bar Linkages
Jun Wang,
Jun Wang
Tennessee Technological University, Cookeville, TN
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Kwun-Lon Ting
Kwun-Lon Ting
Tennessee Technological University, Cookeville, TN
Search for other works by this author on:
Jun Wang
Tennessee Technological University, Cookeville, TN
Kwun-Lon Ting
Tennessee Technological University, Cookeville, TN
Paper No:
DETC2010-28961, pp. 1739-1749; 11 pages
Published Online:
March 8, 2011
Citation
Wang, J, & Ting, K. "Mobility Identification of a Group of Single Degree-of-Freedom Eight-Bar Linkages." Proceedings of the ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 2: 34th Annual Mechanisms and Robotics Conference, Parts A and B. Montreal, Quebec, Canada. August 15–18, 2010. pp. 1739-1749. ASME. https://doi.org/10.1115/DETC2010-28961
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