This article presents a novel method for the dimensional synthesis of Stephenson-II function generators without order, circuit, and branch defects. The explicit equations relating the generated output and specified variables of Stephenson-II function generators are derived by eliminating and transforming angular variables on two five-bar loops and by using the specified values of input and output variables. Then, the deviation between the generated and required angular positions of the output link of the synthesized mechanism is obtained for the objective function. Using the characteristics of order, circuits, branches, and the geometric features of dead-center configurations for Stephenson-II function generators, the constraint equations for avoiding these defects are proposed for the optimal synthesis of Stephenson-II function generators. The synthesized mechanisms are shown to be defect-free and satisfy all functional requirements. An example is given to demonstrate the feasibility of the proposed method.
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e-mail: hwang@mail.ncku.edu.tw
e-mail: yijiechen69@gmail.com
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November 2010
Research Papers
Defect-Free Synthesis of Stephenson-II Function Generators
Wen-Miin Hwang,
Wen-Miin Hwang
Professor
Department of Mechanical Engineering,
e-mail: hwang@mail.ncku.edu.tw
National Cheng Kung University
, Tainan, Taiwan 70101, R.O.C.
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Yi-Jie Chen
Yi-Jie Chen
Associated Engineer
Project Coordination & Liaison Section, Planning & Promotion Department,
e-mail: yijiechen69@gmail.com
Metal Industries Research and Development Center
, Taipei, Taiwan 10075, R.O.C.
Search for other works by this author on:
Wen-Miin Hwang
Professor
Department of Mechanical Engineering,
National Cheng Kung University
, Tainan, Taiwan 70101, R.O.C.e-mail: hwang@mail.ncku.edu.tw
Yi-Jie Chen
Associated Engineer
Project Coordination & Liaison Section, Planning & Promotion Department,
Metal Industries Research and Development Center
, Taipei, Taiwan 10075, R.O.C.e-mail: yijiechen69@gmail.com
J. Mechanisms Robotics. Nov 2010, 2(4): 041012 (7 pages)
Published Online: October 14, 2010
Article history
Received:
October 15, 2008
Revised:
February 12, 2010
Online:
October 14, 2010
Published:
October 14, 2010
Citation
Hwang, W., and Chen, Y. (October 14, 2010). "Defect-Free Synthesis of Stephenson-II Function Generators." ASME. J. Mechanisms Robotics. November 2010; 2(4): 041012. https://doi.org/10.1115/1.4001728
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