Abstract
In order to study the influence of joint clearance and flexible component on axisymmetric vectoring exhaust nozzle (AVEN) mechanism, the rigid flexible coupling dynamic equation of simplified AVEN mechanism is established based on the finite element method. Specifically, the Lankarani-Nikravesh contact force model is used to analyze the clearance impact force, and the flexible component is established by the absolute node coordinate method (ANCF). The dynamic equation is derived by Lagrange multiplier method, and solved by EULER IMPLICIT and MINRES combined. The influence of clearance and flexibility on the dynamics of AVEN mechanism are analyzed, which implies that the clearance and flexibility will cause nonlinearity of the AVEN dynamics. With the increase of joint clearance, the accuracy and stability of mechanism motion decrease and the reaction force of joint increases. Moreover, the flexibility would compensate the nonlinearity caused by the clearance.
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Acknowledgements
Supported by the National Natural Science Foundation of China (52005088) and the Natural Science Foundation of Liaoning Province (2020-MS-076) and National Science and Technology Major Project (J2019-IV-0002-0069).
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Wang, X., Wang, H., Xu, C., Luo, Z., Han, Q. (2023). Dynamics Analysis of Simplified Axisymmetric Vectoring Exhaust Nozzle Mechanical System with Joint Clearance and Flexible Component. In: Liu, X. (eds) Advances in Mechanism, Machine Science and Engineering in China. CCMMS 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-9398-5_4
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DOI: https://doi.org/10.1007/978-981-19-9398-5_4
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