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A Trajectory Planning Method for Load-Carrying Capacity Improvement of Redundant Space Manipulator with Large External Force

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, a joint torque optimization method is proposed for redundant space manipulator systems where an external force acts on the end-effector. Through three weighting factors, the joint dynamic torque minimization, the influence of external forces minimization and joint velocity minimization are combined. The quadratic program (QP) method is used to solve the proposed joint torque minimization at joint-acceleration level. This paper solves the problem of joint-velocity and joint-position level planning at the level of joint-acceleration, which realizes the simultaneous processing of three different levels of problems. Joint velocity minimization guarantees the stability and final joint-velocity of motion to be near zero. A simulation experiment of a 7-DOF redundant space robot is carried out to verify the effectiveness of the proposed method.

Original languageEnglish
Title of host publicationIntelligent Robotics and Applications - 14th International Conference, ICIRA 2021, Proceedings
EditorsXin-Jun Liu, Zhenguo Nie, Jingjun Yu, Fugui Xie, Rui Song
PublisherSpringer Science and Business Media Deutschland GmbH
Pages371-382
Number of pages12
ISBN (Print)9783030890919
DOIs
StatePublished - 2021
Event14th International Conference on Intelligent Robotics and Applications, ICIRA 2021 - Yantai, China
Duration: 22 Oct 202125 Oct 2021

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume13016 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference14th International Conference on Intelligent Robotics and Applications, ICIRA 2021
Country/TerritoryChina
CityYantai
Period22/10/2125/10/21

Keywords

  • Large external force
  • Quadratic program (QP)
  • Redundant space manipulator
  • Torque minimization

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