Equilibrium Conformation of Concentric-Tube Robots Under Loads Based on the Minimum Energy Principle
Concentric-tube robots,which consist of several pre-curved tubes,can achieve dexterous motion through axial rotation and translation of each component tube.Aiming at equilibrium conformation modeling of externally loaded concentric-tube robots,an equivalent conservative system is proposed to translate the force balance problem into the minimum potential energy configuration problem of the conservative system.Then,the optimal control theory is used to derive the differential equations for the equilibrium conformation.Finally,this model is visually evaluated through the simulation of a loaded two-tube robot,and the effects of the external loads on the vital parameters of the equilibrium conformation are analyzed.
Concentric-tube continuum robots Equilibrium conformation Minimum potential energy principle Kirchhoff rod
Long Huang Changyan He Yang Yang Chenhan Guang
School of Mechanical Engineering and Automation, Beihang University,Xueyuan Road 37, Haidian District, Beijing 100191, China
国际会议
广州
英文
209-221
2016-12-15(万方平台首次上网日期,不代表论文的发表时间)