Friction-Identification of Harmonic Drive Joints Based on the MCMC Method

Although harmonic drives have been adopted by all sorts of industrial environments, the mathematical expression of its dynamics has not yet been fully solved. An intelligent algorithm based on data acquisition is used to analyze the kinematic parameter of the flexible manipulator offline to improve...

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Main Authors: Qi Wang, Huapeng Wu, Yong Cheng, Hongtao Pan, Yang Yang, Guodong Qin
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9968008/
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author Qi Wang
Huapeng Wu
Yong Cheng
Hongtao Pan
Yang Yang
Guodong Qin
author_facet Qi Wang
Huapeng Wu
Yong Cheng
Hongtao Pan
Yang Yang
Guodong Qin
author_sort Qi Wang
collection DOAJ
description Although harmonic drives have been adopted by all sorts of industrial environments, the mathematical expression of its dynamics has not yet been fully solved. An intelligent algorithm based on data acquisition is used to analyze the kinematic parameter of the flexible manipulator offline to improve the accuracy of predicting output torque. In this study, a method is proposed to capture the dynamics of harmonic drive systems, such as temperature, speed, and load. A friction model is proposed, and the model parameters are estimated by MCMC (Markov chain Monte Carlo) approximation. The accuracy of the estimated parameters in different conditions is calculated, and the sensitivity to parameter uncertainty of the proposed model is considered.
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spelling doaj.art-45a554cd577f4ce490dce8623d348b932022-12-22T04:40:51ZengIEEEIEEE Access2169-35362022-01-011012589312590710.1109/ACCESS.2022.32260369968008Friction-Identification of Harmonic Drive Joints Based on the MCMC MethodQi Wang0https://orcid.org/0000-0002-6242-7451Huapeng Wu1https://orcid.org/0000-0001-6759-6038Yong Cheng2Hongtao Pan3https://orcid.org/0000-0002-2380-8382Yang Yang4https://orcid.org/0000-0002-3510-6943Guodong Qin5https://orcid.org/0000-0001-5497-3623Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaSchool of Energy Systems, Lappeenranta University of Technology, Lappeenranta, FinlandInstitute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaInstitute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaInstitute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaSchool of Energy Systems, Lappeenranta University of Technology, Lappeenranta, FinlandAlthough harmonic drives have been adopted by all sorts of industrial environments, the mathematical expression of its dynamics has not yet been fully solved. An intelligent algorithm based on data acquisition is used to analyze the kinematic parameter of the flexible manipulator offline to improve the accuracy of predicting output torque. In this study, a method is proposed to capture the dynamics of harmonic drive systems, such as temperature, speed, and load. A friction model is proposed, and the model parameters are estimated by MCMC (Markov chain Monte Carlo) approximation. The accuracy of the estimated parameters in different conditions is calculated, and the sensitivity to parameter uncertainty of the proposed model is considered.https://ieeexplore.ieee.org/document/9968008/Harmonic drivesfrictionMCMC methodparameter estimation
spellingShingle Qi Wang
Huapeng Wu
Yong Cheng
Hongtao Pan
Yang Yang
Guodong Qin
Friction-Identification of Harmonic Drive Joints Based on the MCMC Method
IEEE Access
Harmonic drives
friction
MCMC method
parameter estimation
title Friction-Identification of Harmonic Drive Joints Based on the MCMC Method
title_full Friction-Identification of Harmonic Drive Joints Based on the MCMC Method
title_fullStr Friction-Identification of Harmonic Drive Joints Based on the MCMC Method
title_full_unstemmed Friction-Identification of Harmonic Drive Joints Based on the MCMC Method
title_short Friction-Identification of Harmonic Drive Joints Based on the MCMC Method
title_sort friction identification of harmonic drive joints based on the mcmc method
topic Harmonic drives
friction
MCMC method
parameter estimation
url https://ieeexplore.ieee.org/document/9968008/
work_keys_str_mv AT qiwang frictionidentificationofharmonicdrivejointsbasedonthemcmcmethod
AT huapengwu frictionidentificationofharmonicdrivejointsbasedonthemcmcmethod
AT yongcheng frictionidentificationofharmonicdrivejointsbasedonthemcmcmethod
AT hongtaopan frictionidentificationofharmonicdrivejointsbasedonthemcmcmethod
AT yangyang frictionidentificationofharmonicdrivejointsbasedonthemcmcmethod
AT guodongqin frictionidentificationofharmonicdrivejointsbasedonthemcmcmethod