DocumentCode :
3515151
Title :
Electrohydrostatic actuator collaborative optimization considering control performance and reliability
Author :
Wang, Hao ; Wang, Shaoping ; Tomovic, Mileta M.
Author_Institution :
Sch. of Autom. Sci. & Electr. Eng., Beihang Univ., Beijing, China
fYear :
2009
fDate :
20-24 July 2009
Firstpage :
58
Lastpage :
62
Abstract :
When design complex product like electrohydrostatic actuator (EHA), all of the experts from different disciplines need to co-design and cooperate. Design variables in different disciplines couple together and affect the object functions, constraint condition. This article use multidisciplinary design optimization (MDO) method - collaborative optimization (CO) to design and optimize EHA. When performing the structure design of EHA we consider two disciplines which are control discipline and reliability discipline. When performing the reliability design, the stress and strength should be considered as stochastic variables. We use load-strength interference model to describe the relationship between stress and strength distribution. With the CO method, we can get the mass of the EHA system has decreased. The control performance and reliability of the system are greatly improved.
Keywords :
electrostatic actuators; groupware; optimisation; reliability; stochastic processes; stress analysis; collaborative optimization; electrohydrostatic actuator; load-strength interference; multidisciplinary design optimization; reliability design; stochastic variable; strength distribution; stress distribution; Actuators; Collaboration; Control systems; Design optimization; Electric variables control; Interference; Load modeling; Product design; Stochastic processes; Stress; eletrohydrostatic actuator; multidisciplinary design optimization; structural reliability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Reliability, Maintainability and Safety, 2009. ICRMS 2009. 8th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4903-3
Electronic_ISBN :
978-1-4244-4905-7
Type :
conf
DOI :
10.1109/ICRMS.2009.5270238
Filename :
5270238
Link To Document :
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