Abstract：To enhance the motion and survival abilities of a scout robot,the hopping movement and the wheeling movement are combined to develop a new scout robot.A new hopping pneumatic mechanism is employed to realize robotic jumping motion.The characteristics of the hopping pneumatic mechanism are introduced,and the relationship among several coupled parameters in pneumatic hopping is deduced.The influencing factors of the jumping height are analyzed,and a new method is proposed to control the jumping height by adjusting the opening time of the directional control valve.Finally,analysis on obstacle-overcoming capability and the experimental verification are carried out on the designed pneumatic hopping robot.The results show the reasonability and applicability of the new pneumatic hopping mechanism of the scout robot.
 Raibert M H.Dynamic stability and resonance in a one legged hopping machine[C]//CISM-IFToMM Symposium on Theory and Practice of Robots and Manipulators.1981:352-367.
 Fiorini P,Hayati S,Heverly M,et al.Ahopping robot for plane tary exploration[C]//IEEE Aerospace Applications Conference.Piscataway,NJ,USA:IEEE,1999:153-158
 Stoeter S A,Papanikolopoulos N.Autonomous stair-climbing with miniature jumping robots[J].IEEE Transactions on Systems,Man,and Cybernetics,Part B,2005,35(2):313-325.
 Pearce J L,Rybski P E,Stoeter S A,et al.Dispersion behaviors for a team of multiple miniature robots[C]//IEEE International Conference on Robotics and Automation.Piscataway,NJ,USA:IEEE,2003:1158-1163.
 刘壮志,席文明,朱剑英,等.弹跳式机器人研究[J].机器人,2003,25(6):568-573.Liu Zhuangzhi,Xi Wenming,Zhu Jianying,et al.Research on jumping robots[J].Robot,2003,25(6):568-573.
 夏旭峰,葛文杰,张永红.基于弹簧-质量模型的仿袋鼠跳跃机器人步态稳定性研究[J].机器人,2006,28(5):488-494.Xia Xufeng,Ge Wenjie,Zhang Yonghong.Gait stability of hopping kangaroo robot based on spring-mass model[J].Robot,2006,28(5):488-494.
 Zhao J,Liu G E Yan J H,et al.Scout robot with wheelinghopping combination locomotion[J].Industrial Robot,2009,36(3):244-248.
 Tsukagoshi H,Sasaki M,Kitagawa A,et al.Numerical analysis and design for a higher jumping rescue robot using a pneumatic cylinder[J].Journal of Mechanical Design,Transactions of ASME,2005,127(2):308-314.
 Kim D H,Lee J H,Kim I,et al.Mechanism,control,and visual management of a jumping robot[J].Mechatronics,2008,18(10):591-600.