DocumentCode :
2554377
Title :
Application of convex optimization in integrated design of five-bar mechanism
Author :
Wang, Hong ; Yang, Jiangzhao ; Li, Zexiang
Author_Institution :
Div. of Control & Mechatron. Eng., Harbin Inst. of Technol., Shenzhen, China
fYear :
2011
fDate :
21-25 June 2011
Firstpage :
1119
Lastpage :
1124
Abstract :
In this paper, we presented an integrated design methodology for a five-bar mechanism. Five-bar mechanisms are often used in applications that require high speed and high precision motion control. One example of such applications is the semiconductor wire bonding process. In this process, the tip acceleration needs to reach 10g to 15g with sub-micron precision and little vibration. In order to meet such strict design requirements, we first developed a dynamic equation for the rigid five-bar mechanism and obtained a simplified model for designing the structure distribution of the mechanism. Secondly, taking both mechanical and controller parameters as design variables, we formulated the settling time and overshoot functions of the closed-loop system and investigated the convexity features of them. By properly choosing optimal variables, we obtained a convex function which is treated as an objective function with a set of real constraints in an optimization problem. Finally, by optimization algorithm of differential evolution, we obtained a set of global optimal values including mechanical and controller parameters. The effectiveness of the proposed design approach is demonstrated by simulation results.
Keywords :
closed loop systems; control system synthesis; convex programming; motion control; closed-loop system; convex function; convex optimization; differential evolution; dynamic equation; integrated design; motion control; objective function; optimization problem; rigid five-bar mechanism; semiconductor wire bonding process; structure distribution; Mercury (metals); Optimization; Reactive power; Convex optimization; Five-bar mechanism; Integrated design;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Control and Automation (WCICA), 2011 9th World Congress on
Conference_Location :
Taipei
Print_ISBN :
978-1-61284-698-9
Type :
conf
DOI :
10.1109/WCICA.2011.5970691
Filename :
5970691
Link To Document :
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