TRIZ Principle Expansion Research and Practice for Underwater Biological Action Bionic Mechanism

Bionic underwater vehicle has broad application prospects in scientific and military fields because of its imitation of underwater natural biological swimming mode and its physiological structure. In the existing research of bionic underwater robots, most of them use multi-motor to realize the multi-joint efficient drive of bionic underwater robots, which will increase the quality of underwater robots and affect the flexibility of underwater motion. The contradiction between the efficiency of bionic propulsion and the weight of driving device has been limiting the motion and development of bionic underwater vehicle. In order to solve the problem of low propulsion efficiency of bionic underwater robots, TRIZ theory is used to analyze and innovate the problems of bionic underwater robots. A new invention principle is proposed, and the extended contradiction matrix table is experimentally verified.