An Online Trajectory Planning Method of a Flexible-Link Manipulator Aiming at Vibration Suppression

Vibration has a great influence on the working accuracy of flexible-link manipulators. In this paper, an online trajectory planning method for the flexible-link manipulator is proposed to suppress the vibration. Firstly, the vibration dynamic model of planar flexible-link manipulator is established,...

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Main Authors: Yuanyuan Li, Shuzhi Sam Ge, Qingping Wei, Tao Gan, Xiaolin Tao
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9141285/
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author Yuanyuan Li
Shuzhi Sam Ge
Qingping Wei
Tao Gan
Xiaolin Tao
author_facet Yuanyuan Li
Shuzhi Sam Ge
Qingping Wei
Tao Gan
Xiaolin Tao
author_sort Yuanyuan Li
collection DOAJ
description Vibration has a great influence on the working accuracy of flexible-link manipulators. In this paper, an online trajectory planning method for the flexible-link manipulator is proposed to suppress the vibration. Firstly, the vibration dynamic model of planar flexible-link manipulator is established, and the actual vibration trajectory of manipulator is solved by reasonable simplification. Then, taking residual energy of vibration as an objective function, the optimizer based on Particle Swarm Optimization(PSO) intelligent search algorithm is employed to search the motion trajectory of the manipulator with the best vibration suppression effect. Finally, the optimizer based on back propagation neural networks(BPNN) is employed instead of PSO optimizer to generate manipulator motion trajectory rapidly, and the optimal trajectory database searched by PSO optimizer is used to train BPNN. Simulation results show that this method can generate the trajectory rapidly and suppress the vibration effectively, and can be applied to the online trajectory planning of flexible manipulator.
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spelling doaj.art-1de1e02c55b94e02a1e07f1d17401ed12022-12-21T20:33:28ZengIEEEIEEE Access2169-35362020-01-01813061613063210.1109/ACCESS.2020.30095269141285An Online Trajectory Planning Method of a Flexible-Link Manipulator Aiming at Vibration SuppressionYuanyuan Li0https://orcid.org/0000-0002-4470-3889Shuzhi Sam Ge1Qingping Wei2Tao Gan3Xiaolin Tao4Center for Robotics, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaCenter for Robotics, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaDEC Academy of Science and Technology Company Ltd., Chengdu, ChinaCenter for Robotics, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaCenter for Robotics, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaVibration has a great influence on the working accuracy of flexible-link manipulators. In this paper, an online trajectory planning method for the flexible-link manipulator is proposed to suppress the vibration. Firstly, the vibration dynamic model of planar flexible-link manipulator is established, and the actual vibration trajectory of manipulator is solved by reasonable simplification. Then, taking residual energy of vibration as an objective function, the optimizer based on Particle Swarm Optimization(PSO) intelligent search algorithm is employed to search the motion trajectory of the manipulator with the best vibration suppression effect. Finally, the optimizer based on back propagation neural networks(BPNN) is employed instead of PSO optimizer to generate manipulator motion trajectory rapidly, and the optimal trajectory database searched by PSO optimizer is used to train BPNN. Simulation results show that this method can generate the trajectory rapidly and suppress the vibration effectively, and can be applied to the online trajectory planning of flexible manipulator.https://ieeexplore.ieee.org/document/9141285/Vibration suppressiononline trajectory planningflexible-link manipulatorparticle swarm optimizationneural networks
spellingShingle Yuanyuan Li
Shuzhi Sam Ge
Qingping Wei
Tao Gan
Xiaolin Tao
An Online Trajectory Planning Method of a Flexible-Link Manipulator Aiming at Vibration Suppression
IEEE Access
Vibration suppression
online trajectory planning
flexible-link manipulator
particle swarm optimization
neural networks
title An Online Trajectory Planning Method of a Flexible-Link Manipulator Aiming at Vibration Suppression
title_full An Online Trajectory Planning Method of a Flexible-Link Manipulator Aiming at Vibration Suppression
title_fullStr An Online Trajectory Planning Method of a Flexible-Link Manipulator Aiming at Vibration Suppression
title_full_unstemmed An Online Trajectory Planning Method of a Flexible-Link Manipulator Aiming at Vibration Suppression
title_short An Online Trajectory Planning Method of a Flexible-Link Manipulator Aiming at Vibration Suppression
title_sort online trajectory planning method of a flexible link manipulator aiming at vibration suppression
topic Vibration suppression
online trajectory planning
flexible-link manipulator
particle swarm optimization
neural networks
url https://ieeexplore.ieee.org/document/9141285/
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