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12 November 2024 Semi-analytical and numerical models to investigate the regulation of shock response spectrum generating in plates
Chengwu Liu, Songwei Cao, Feng Xu, Yangyu Duan, Jingjing Wen, Bin Wu
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Proceedings Volume 13395, International Conference on Optics, Electronics, and Communication Engineering (OECE 2024) ; 133951X (2024) https://doi.org/10.1117/12.3049872
Event: International Conference on Optics, Electronics, and Communication Engineering, 2024, Wuhan, China
Abstract
In this work, a semi-analytical model of shock response spectrum (SRS) in rectangular plates under impulse loads is carried out. Firstly, the modal analysis technique is employed to solve the acceleration response of rectangular ReissnerMindlin plates with simply-supported edges. Then, semi-analytical expression of corresponding SRS is obtained after introducing the convolution integrals. With the semi-analytical model, the characteristics of SRS with input variable parameters, such as excitation load and dynamic parameters of plates, are analyzed systematically. Subsequently, a finite element model (FEM) of rectangular Reissner-Mindlin plate is developed to study and verify the regulation effect of excitation load (peak and duration) on the characteristics of SRS. The simulation results indicate that the response accelerations and corresponding SRS of plate agree well with the regulations from semi-analytical model. Lastly, rectangular Reissner-Mindlin plates with various variable parameters are simulated with FEM model to further explore the regulation effects of SRS, and results indicate characteristics of SRS are highly dependent on each input variable (excitation load, dynamic characteristic, response position and boundary condition of plate).
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Chengwu Liu, Songwei Cao, Feng Xu, Yangyu Duan, Jingjing Wen, and Bin Wu "Semi-analytical and numerical models to investigate the regulation of shock response spectrum generating in plates", Proc. SPIE 13395, International Conference on Optics, Electronics, and Communication Engineering (OECE 2024) , 133951X (12 November 2024); https://doi.org/10.1117/12.3049872
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KEYWORDS
Frequency response
Finite element methods
Boundary conditions
Oscillators
Vibration
Convolution
Spectral response
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