Modelling and Simulation of the Coupled Rigid-flexible Multibody Systems in MWorks

Xie Gang; Zhao Yan; Zhou Fanli; Chen Liping

Title:

Author:

Xie Gang: CAD Center, Huazhong University of Science and Technology, Wuhan, China Zhao Yan: CAD Center, Huazhong University of Science and Technology, Wuhan, China Zhou Fanli: Suzhou Tongyuan Software & Control Tech. Co. Ltd, Suzhou, China Chen Liping: CAD Center, Huazhong University of Science and Technology, Wuhan, China

DOI:

10.3384/ecp12076405

Download:

Full text (pdf)

Year:

2012

Conference:

Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Issue:

076

Article no.:

042

Pages:

405-416

No. of pages:

Publication type:

Abstract and Fulltext

Published:

2012-11-19

ISBN:

978-91-7519-826-2

Series:

Linköping Electronic Conference Proceedings

ISSN (print):

1650-3686

ISSN (online):

1650-3740

Publisher:

Linköping University Electronic Press; Linköpings universitet

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Aiming to the design challenge of modern mechatronic products; this paper presents a method to simulate the coupled rigid-flexible system in Mworks. Firstly; the component mode synthesis (CMS) technique is introduced and the Craig-Bampton method is adopted to build the flexible-body model. The general flexible-body model named FlexibleBody is developed based on the standard MultiBody library in Modelica; which describes the small and linear deformation behavior (relative to a local reference frame) of a flexible-body that undergoes large and non-linear global motion. In the model; the modal neutral file (MNF) is introduced as a standard interface to describe the constraint modes. Secondly; the model is used to construct a library of boom system of concrete pump truck and the simulations covering the expanding and folding process are carried out based on both the rigid multibody and the coupled rigid-flexible system models. Finally; the influence to dynamics performance of the boom system is analyzed and the conclusion is drawn. The method in this paper provides an effective approach to build unified model and simulate flexible-body in multi-domain engineering systems.

Keywords: rigid-flexible system; concrete pump truck; MWorks

Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Author:

Xie Gang, Zhao Yan, Zhou Fanli, Chen Liping

Title:

Modelling and Simulation of the Coupled Rigid-flexible Multibody Systems in MWorks

DOI:

http://dx.doi.org/10.3384/ecp12076405

References:

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[14] Ulf Sellgren. Component Mode Synthesis – A method for efficient dynamic simulation of complex technical systems. Department of Machine Design; the Royal Institute of Technology; Sweden; 2003: 1-27.

[15] Zhou Fanli; Chen Liping; Wu Yizhong; et al. MWorks: a Modern IDE for Modeling and Simulation of Multi-domain Physical Systems Based on Modelica. The Modelica Association; Modelica 2006: 725-731.

Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Author:

Xie Gang, Zhao Yan, Zhou Fanli, Chen Liping

Title:

Modelling and Simulation of the Coupled Rigid-flexible Multibody Systems in MWorks

DOI:

https://doi.org10.3384/ecp12076405

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