1Fan Xiaoping, Xu Jianmin, Mao Zongyuan, Zhou Qijie Department of Automation, South China University of Technology Guangzhou, 510641, P.R. China Y. S. Ho T. P. Leung The Hong Kong Polytechnic University Hung Hom, Kowloon, HK.Adaptive Fuzzy Control of Constrained Flexible-Link Manipulators[J].International Journal of Plant Engineering and Management,1997,2(4):52-62.