Design and Optimization of Wheel-legged Robot:Rolling-Wolf QING A Thesis Submitted to Chongqing University in Partial Fulfillment of the Requirement for the Master's Degree of Engineering By Luo Yang Supervised by Prof.Li Qimin Pluralistic Supervisor by Senior Eng.Han Huali Specialty:ME (Mechanical Engineering Field) College of Mechanical Engineering of Chongqing University,Chongqing,China May,2014Design and Optimization of Wheel-legged Robot：Rolling-Wolf A Thesis Submitted to Chongqing University in Partial Fulfillment of the Requirement for the Master’s Degree of Engineering By Luo Yang Supervised by Prof. Li Qimin Pluralistic Supervisor by Senior Eng. Han Huali Specialty: ME (Mechanical Engineering Field) College of Mechanical Engineering of Chongqing University, Chongqing, China May, 2014