Design of the Variable Stiffness Mechanism with Human-robot Interaction and Research on Optimal Hammering Trajectory

In order to enhance the operation capability of the robot end-effector and ensure the safety of human-robot interaction, a variable stiffness mechanism (VSM) with variable stiffness, energy storage, strong environmental adaptation, and safe human-robot interaction was proposed. Firstly, the principl...

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Main Authors: Zhang Xiaolei, Wu Yaguang
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2024-12-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.12.010
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author Zhang Xiaolei
Wu Yaguang
author_facet Zhang Xiaolei
Wu Yaguang
author_sort Zhang Xiaolei
collection DOAJ
description In order to enhance the operation capability of the robot end-effector and ensure the safety of human-robot interaction, a variable stiffness mechanism (VSM) with variable stiffness, energy storage, strong environmental adaptation, and safe human-robot interaction was proposed. Firstly, the principle of the mechanism to realize the variable stiffness function through the axial arrangement and interaction of multiple magnets was introduced, and several different stiffness modes were proposed. Then, the VSM was mounted on a 6-DOF robotic system to conduct a series of hammering collision experiments to demonstrate and analyze the excellent energy storage and adaptive capability of the VSM. In the meantime, relying on the robotic system, using Python software and finite element analysis, how to achieve the optimal hammering trajectory and the best hammering effect through the VSM was explored. Finally, the potential damage to the robot caused by conducting a hard crash test chamber and how to adjust the VSM stiffness to mitigate this type of damage were also analyzed. The results show that the presence of the VSM can absorb most of the impulsive forces transmitted to the robot during its low stiffness phase, thus effectively avoiding the damage caused by the robotic system when performing similar tasks.
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institution Kabale University
issn 1004-2539
language zho
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publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
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spelling doaj-art-b68f6056985f438cb2a6a5333088f6532025-01-10T15:02:24ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392024-12-0148677578918979Design of the Variable Stiffness Mechanism with Human-robot Interaction and Research on Optimal Hammering TrajectoryZhang XiaoleiWu YaguangIn order to enhance the operation capability of the robot end-effector and ensure the safety of human-robot interaction, a variable stiffness mechanism (VSM) with variable stiffness, energy storage, strong environmental adaptation, and safe human-robot interaction was proposed. Firstly, the principle of the mechanism to realize the variable stiffness function through the axial arrangement and interaction of multiple magnets was introduced, and several different stiffness modes were proposed. Then, the VSM was mounted on a 6-DOF robotic system to conduct a series of hammering collision experiments to demonstrate and analyze the excellent energy storage and adaptive capability of the VSM. In the meantime, relying on the robotic system, using Python software and finite element analysis, how to achieve the optimal hammering trajectory and the best hammering effect through the VSM was explored. Finally, the potential damage to the robot caused by conducting a hard crash test chamber and how to adjust the VSM stiffness to mitigate this type of damage were also analyzed. The results show that the presence of the VSM can absorb most of the impulsive forces transmitted to the robot during its low stiffness phase, thus effectively avoiding the damage caused by the robotic system when performing similar tasks.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.12.010RobotVariable stiffnessEnergy storageHuman-robot safe interactionHammering collisionFinite element analysis
spellingShingle Zhang Xiaolei
Wu Yaguang
Design of the Variable Stiffness Mechanism with Human-robot Interaction and Research on Optimal Hammering Trajectory
Jixie chuandong
Robot
Variable stiffness
Energy storage
Human-robot safe interaction
Hammering collision
Finite element analysis
title Design of the Variable Stiffness Mechanism with Human-robot Interaction and Research on Optimal Hammering Trajectory
title_full Design of the Variable Stiffness Mechanism with Human-robot Interaction and Research on Optimal Hammering Trajectory
title_fullStr Design of the Variable Stiffness Mechanism with Human-robot Interaction and Research on Optimal Hammering Trajectory
title_full_unstemmed Design of the Variable Stiffness Mechanism with Human-robot Interaction and Research on Optimal Hammering Trajectory
title_short Design of the Variable Stiffness Mechanism with Human-robot Interaction and Research on Optimal Hammering Trajectory
title_sort design of the variable stiffness mechanism with human robot interaction and research on optimal hammering trajectory
topic Robot
Variable stiffness
Energy storage
Human-robot safe interaction
Hammering collision
Finite element analysis
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.12.010
work_keys_str_mv AT zhangxiaolei designofthevariablestiffnessmechanismwithhumanrobotinteractionandresearchonoptimalhammeringtrajectory
AT wuyaguang designofthevariablestiffnessmechanismwithhumanrobotinteractionandresearchonoptimalhammeringtrajectory