Abstract
The joint-space inertia matrix (JSIM) plays an important role in the dynamic simulation and control of robot mechanisms. In this paper, a novel explicit modelling method of JSIM for tree-chain dynamic system is proposed. By this method, each element of the inertia matrix has an explicit expression with respect to input parameters. Thus, the modelling process only includes the process of coordinate system establishment and parameter determination without the intermediate process of complex analysis and derivation. Moreover, the matrix elements are decoupled, which is beneficial to further study of the properties of JSIM on the one hand. On the other hand, multiple matrix elements can be computed simultaneously to reduce the computation time. Compared with the existing explicit method, this method has higher modelling and computational efficiency. Finally, a planar manipulator with three degrees of freedom (DOFs) is used to verify the proposed method in serial-chain application and show its modelling convenience. A lunar rover example is used to verify the proposed method in tree-chain application, and the modelling results are applied to the traction control in the simulation software of lunar rover.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
