Design and Performance Test of an H-shaped Bionic Piezoelectric Robot Based on the Standing Wave Principle  

作　　者：Ying Li Chaofeng Li Zhiwei Wu Binbin Zhu Jinghu Tang 

机构地区：[1]School of Mechanical Engineering and Automation,Northeastern University,Shenyang,110819,People’s Republic of China [2]Key Laboratory of Vibration and Control of Aero-propulsion Systems,Northeastern University,Shenyang,110819,People’s Republic of China [3]State Key Laboratory of Internet of Things for Smart City,University of Macao,Macao,999078,People’s Republic of China

出　　处：《Journal of Bionic Engineering》2025年第2期608-625,共18页仿生工程学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(No.12372005);the Aeronautical Science Foundation of China(No.ASFC-2024Z070050001);the Natural Science Foundation of Liaoning Province(2024-MSBA-32).

摘　　要：In this paper,inspired by the running motion gait of a cheetah,an H-shaped bionic piezoelectric robot(H-BPR)based on the standing wave principle is proposed and designed.The piezoelectric robot realizes linear motion,turning motion,and turning motion with different radi by the voltage differential driving method.A prototype with a weight of 38 g and dimensions of 150×80×31 mm^(3) was fabricated.Firstly,the dynamics and kinematics of the piezoelectric robot were analyzed to obtain the trajectory of a point at the end of the piezoelectric robot leg.The motion principle of the piezo-electric robot was analyzed,and then the piezoelectric robot's modal analysis and harmonic response analysis were carried out using finite element analysis software.Finally,an experimental setup was built to verify the effectiveness and high efficiency of the robot's motion,and the effects of frequency,voltage,load,and height of the driving leg on the robot's motion performance were discussed.The performance test results show that the piezoelectric robot has a maximum veloc-ity of 66.79 mm/s at an excitation voltage of 320 V and a load capacity of 55 g.In addition,the H-BPR with unequal drive legs has better climbing performance,and the obtained conclusions are informative for selecting leg heights for piezoelectric robots.

关 键 词：PIEZOELECTRIC Standing wave principle BIONIC Differential driving method ROBOT 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]