Modelling, simulation and experiment of the spherical flexible joint stiffness
The spherical flexible joint is extensively used in engineering. It is designed to provide flexibility in rotation while bearing vertical compression load. The linear rotational stiffness of the flexible joint is formulated. The rotational stiffness of the bonded rubber layer is related to inner...
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doaj-8551949afa0f41eeba8fab7f8fe14b162020-11-25T00:32:15ZengCopernicus PublicationsMechanical Sciences2191-91512191-916X2018-02-019818910.5194/ms-9-81-2018Modelling, simulation and experiment of the spherical flexible joint stiffnessS. Li0L. Wang1S. Yao2P. Jia3F. Yun4W. Jin5D. Lv6College of Mechanical and Electronical Engineering, Harbin Engineering University, Harbin, 150001, ChinaCollege of Mechanical and Electronical Engineering, Harbin Engineering University, Harbin, 150001, ChinaAMRC with Boeing, the University of Sheffield, Sheffield, S60 5TZ, UKCollege of Mechanical and Electronical Engineering, Harbin Engineering University, Harbin, 150001, ChinaCollege of Mechanical and Electronical Engineering, Harbin Engineering University, Harbin, 150001, ChinaCollege of Mechanical and Electronical Engineering, Harbin Engineering University, Harbin, 150001, ChinaCollege of Mechanical and Electronical Engineering, Harbin Engineering University, Harbin, 150001, ChinaThe spherical flexible joint is extensively used in engineering. It is designed to provide flexibility in rotation while bearing vertical compression load. The linear rotational stiffness of the flexible joint is formulated. The rotational stiffness of the bonded rubber layer is related to inner radius, thickness and two edge angles. FEM is used to verify the analytical solution and analyze the stiffness. The Mooney–Rivlin, Neo Hooke and Yeoh constitutive models are used in the simulation. The experiment is taken to obtain the material coefficient and validate the analytical and FEM results. The Yeoh model can reflect the deformation trend more accurately, but the error in the nearly linear district is bigger than the Mooney–Rivlin model. The Mooney–Rivlin model can fit the test result very well and the analytical solution can also be used when the rubber deformation in the flexible joint is small. The increase of Poisson's ratio of the rubber layers will enhance the vertical compression stiffness but barely have effect on the rotational stiffness.https://www.mech-sci.net/9/81/2018/ms-9-81-2018.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S. Li L. Wang S. Yao P. Jia F. Yun W. Jin D. Lv |
spellingShingle |
S. Li L. Wang S. Yao P. Jia F. Yun W. Jin D. Lv Modelling, simulation and experiment of the spherical flexible joint stiffness Mechanical Sciences |
author_facet |
S. Li L. Wang S. Yao P. Jia F. Yun W. Jin D. Lv |
author_sort |
S. Li |
title |
Modelling, simulation and experiment of the spherical flexible joint stiffness |
title_short |
Modelling, simulation and experiment of the spherical flexible joint stiffness |
title_full |
Modelling, simulation and experiment of the spherical flexible joint stiffness |
title_fullStr |
Modelling, simulation and experiment of the spherical flexible joint stiffness |
title_full_unstemmed |
Modelling, simulation and experiment of the spherical flexible joint stiffness |
title_sort |
modelling, simulation and experiment of the spherical flexible joint stiffness |
publisher |
Copernicus Publications |
series |
Mechanical Sciences |
issn |
2191-9151 2191-916X |
publishDate |
2018-02-01 |
description |
The spherical flexible joint is extensively used in engineering. It
is designed to provide flexibility in rotation while bearing
vertical compression load. The linear rotational stiffness of the
flexible joint is formulated. The rotational stiffness of the bonded
rubber layer is related to inner radius, thickness and two edge
angles. FEM is used to verify the analytical solution and analyze
the stiffness. The Mooney–Rivlin, Neo Hooke and Yeoh constitutive
models are used in the simulation. The experiment is taken to obtain
the material coefficient and validate the analytical and FEM
results. The Yeoh model can reflect the deformation trend more
accurately, but the error in the nearly linear district is bigger
than the Mooney–Rivlin model. The Mooney–Rivlin model can fit the
test result very well and the analytical solution can also be used
when the rubber deformation in the flexible joint is small. The
increase of Poisson's ratio of the rubber layers will enhance the
vertical compression stiffness but barely have effect on the
rotational stiffness. |
url |
https://www.mech-sci.net/9/81/2018/ms-9-81-2018.pdf |
work_keys_str_mv |
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