Nonlinear bending response of tape spring flexure hinges under pure bending with transverse curvature
YANG Hui1WANG Yan2LIU Rong-qiang3
1. College of Electrical Engineering and Automation, Anhui University, Hefei 230601, China;
2. China Electronics Technology Group Corporation No.38 Research, Hefei 230088, China;
3. State Key Laboratory Robotics and System, Harbin Institute of Technology, Harbin 150080, China
Tapespring flexible hinges can be folded elastically and can selfdeploy by releasing stored strain energy, which have important potential application value in the deployment mechanisms of satellite and solar array. Based on both the Calladine shell theory and the von Karman large deflection plate theory, a total strain energy analytical model was proposed for the large deflection bending properties of the isotropic tapespring flexure hinges under pure bending. Nonlinear bending moment was derived by applying the minimum potential energy principle. This study incorporated longitudinal stretching, longitudinal and transverse bending variations into the analytical model. Numerical studies were performed to analyze the influences of geometric parameters on peak moment. The experimental apparatus was performed to verify the analytical model. Twelve nickel titanium tapespring flexure hinges with different radius of curvature, thickness, and subtended angle were constructed to measure. Peak moments of each tapespring flexure hinge under equal and opposite bending during quasistatic folding were measured to verify the theoretical model. The proposed research can be applied to analyze and test other thinwalled flexure hinge under pure bending, which is of great importance to design of flexure hinges.
收稿日期: 2017-01-05
出版日期: 2018-04-18
引用本文:
杨慧1, 王岩2, 刘荣强3. 考虑横向曲率的超弹性铰链纯弯曲非线性力学建模与实验[J]. 振动与冲击, 2018, 37(8): 47-53.
YANG Hui1WANG Yan2LIU Rong-qiang3. Nonlinear bending response of tape spring flexure hinges under pure bending with transverse curvature. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(8): 47-53.
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