Dynamics Behavior Analysis of Parallel Mechanism with Joint Clearance and Flexible Links-Reference-Cited by-同舟云学术

Dynamics Behavior Analysis of Parallel Mechanism with Joint Clearance and Flexible Links

Published:2018 Issue: Volume:2018 Page:1-17
ISSN:1070-9622
Container-title:Shock and Vibration
language:en
Short-container-title:Shock and Vibration

Author:

Xiulong Chen¹^ORCID,Yonghao Jia¹,Yu Deng¹,Qing Wang²

Affiliation:

1. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

2. Institute of Nanoengineering, Shandong University of Science and Technology, Qingdao 266590, China

Abstract

In this study, the dynamics behaviors analysis of parallel mechanism considering joint clearance and flexible links are investigated using a computational methodology. The nonlinear dynamic model of 4-UPS-RPS spatial parallel mechanism with clearance in spherical joint and flexible links is established by combining KED method and Lagrange method. The dynamic responses including collision force and motion characteristics of the moving platform are obtained. Chaos and bifurcation are analyzed. The effects of different clearances on the dynamics behaviors of the parallel mechanism are studied. The results show that 4-UPS-RPS spatial parallel mechanism is very sensitive to joint clearance and flexible links, and small variations in the clearance value can cause the mechanism change from periodic motion to chaotic motion. This research provides a methodology for forecasting the dynamics behavior of parallel mechanisms with clearance and flexible links.

Funder

Natural Science Foundation of Shandong Province

Publisher

Hindawi Limited

Subject

Mechanical Engineering,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Condensed Matter Physics,Civil and Structural Engineering

Link

http://downloads.hindawi.com/journals/sv/2018/9430267.pdf

Reference27 articles.

1. Design and analysis of a redundantly actuated parallel mechanism for rapid machining

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