Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method

Abstract The linear multibody system transfer matrix method (LMSTMM) provides a powerful tool for analyzing the vibration characteristics of a mechanical system. However, the original LMSTMM cannot resolve the eigenvalues of the systems with ideal hinges (i.e., revolute hinge, sliding hinge, spheric...

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Main Authors: Jinghong Wang, Xiaoting Rui, Xun Wang, Jianshu Zhang, Qinbo Zhou, Junjie Gu
Format: Article
Language:English
Published: Wiley 2023-03-01
Series:International Journal of Mechanical System Dynamics
Subjects:
Online Access:https://doi.org/10.1002/msd2.12048
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author Jinghong Wang
Xiaoting Rui
Xun Wang
Jianshu Zhang
Qinbo Zhou
Junjie Gu
author_facet Jinghong Wang
Xiaoting Rui
Xun Wang
Jianshu Zhang
Qinbo Zhou
Junjie Gu
author_sort Jinghong Wang
collection DOAJ
description Abstract The linear multibody system transfer matrix method (LMSTMM) provides a powerful tool for analyzing the vibration characteristics of a mechanical system. However, the original LMSTMM cannot resolve the eigenvalues of the systems with ideal hinges (i.e., revolute hinge, sliding hinge, spherical hinge, cylindrical hinge, etc.) or bodies under conservative forces due to the lack of the corresponding transfer matrices. This paper enables the LMSTMM to solve the eigenvalues of the planar multibody systems with ideal hinges or rigid bodies under conservative forces. For a rigid body, the transfer matrix can now consider coupling terms between forces and kinematic state perturbations. Also, conservative forces that contribute to the eigenvalues can be considered. Meanwhile, ideal hinges are introduced to LMSTMM, which enables the treatment of eigenvalues of general multibody systems using LMSTMM. Finally, the comparative analysis with ADAMS software and analytical solutions verifies the effectiveness of the proposed approach in this paper.
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spelling doaj.art-269797e4759948a1a17b023aced275942023-03-28T02:41:26ZengWileyInternational Journal of Mechanical System Dynamics2767-14022023-03-0131122410.1002/msd2.12048Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix methodJinghong Wang0Xiaoting Rui1Xun Wang2Jianshu Zhang3Qinbo Zhou4Junjie Gu5Institute of Launch Dynamics Nanjing University of Science and Technology Nanjing ChinaInstitute of Launch Dynamics Nanjing University of Science and Technology Nanjing ChinaInstitute of Launch Dynamics Nanjing University of Science and Technology Nanjing ChinaInstitute of Launch Dynamics Nanjing University of Science and Technology Nanjing ChinaInstitute of Launch Dynamics Nanjing University of Science and Technology Nanjing ChinaInstitute of Launch Dynamics Nanjing University of Science and Technology Nanjing ChinaAbstract The linear multibody system transfer matrix method (LMSTMM) provides a powerful tool for analyzing the vibration characteristics of a mechanical system. However, the original LMSTMM cannot resolve the eigenvalues of the systems with ideal hinges (i.e., revolute hinge, sliding hinge, spherical hinge, cylindrical hinge, etc.) or bodies under conservative forces due to the lack of the corresponding transfer matrices. This paper enables the LMSTMM to solve the eigenvalues of the planar multibody systems with ideal hinges or rigid bodies under conservative forces. For a rigid body, the transfer matrix can now consider coupling terms between forces and kinematic state perturbations. Also, conservative forces that contribute to the eigenvalues can be considered. Meanwhile, ideal hinges are introduced to LMSTMM, which enables the treatment of eigenvalues of general multibody systems using LMSTMM. Finally, the comparative analysis with ADAMS software and analytical solutions verifies the effectiveness of the proposed approach in this paper.https://doi.org/10.1002/msd2.12048conservative forceseigenvalue analysisideal hingesmodal transformationmultibody system transfer matrix methodstate perturbation
spellingShingle Jinghong Wang
Xiaoting Rui
Xun Wang
Jianshu Zhang
Qinbo Zhou
Junjie Gu
Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method
International Journal of Mechanical System Dynamics
conservative forces
eigenvalue analysis
ideal hinges
modal transformation
multibody system transfer matrix method
state perturbation
title Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method
title_full Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method
title_fullStr Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method
title_full_unstemmed Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method
title_short Eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method
title_sort eigenvalue analysis of planar linear multibody system under conservative force based on the transfer matrix method
topic conservative forces
eigenvalue analysis
ideal hinges
modal transformation
multibody system transfer matrix method
state perturbation
url https://doi.org/10.1002/msd2.12048
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AT xunwang eigenvalueanalysisofplanarlinearmultibodysystemunderconservativeforcebasedonthetransfermatrixmethod
AT jianshuzhang eigenvalueanalysisofplanarlinearmultibodysystemunderconservativeforcebasedonthetransfermatrixmethod
AT qinbozhou eigenvalueanalysisofplanarlinearmultibodysystemunderconservativeforcebasedonthetransfermatrixmethod
AT junjiegu eigenvalueanalysisofplanarlinearmultibodysystemunderconservativeforcebasedonthetransfermatrixmethod