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| Analysis on dynamic modeling and free vibration characteristics of corrugated plate structure |
| Received:December 07, 2021 Revised:February 11, 2022 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20211207002 |
| KeyWord:high speed train differential quadrature finite element weighting coefficient matrix arc shell element corrugated plate structure |
| Author | Institution |
| 李震 |
中南大学 机电工程学院, 长沙 |
| 钟锐 |
中南大学 机电工程学院, 长沙 |
| 秦斌 |
中南大学 交通运输工程学院, 长沙 |
| 王青山 |
中南大学 机电工程学院, 长沙 |
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| Abstract: |
| As a profile structure,a corrugated plate structure can often be seen in a high speed train.It is widely used in structural lightweight design because this structure has many advantages including light weight,high strength and high stability.Firstly,a unified dynamic analysis model of 5-DOF corrugated plate under complex boundary conditions is established by using the differential quadrature finite element method on the basis of the first-order shear deformation theory and the theory of medium thick shells (arc shells).Then,the convergence of the dynamic model for the 5-DOF corrugated plate structure was verified and the optimal number of differential nodes and the value of the penalty factor were determined.Afterwards,the finite software (ABAQUS) was used to verify the accuracy of the model established in this paper.Finally,according to the established model,the influence of structural parameters of the corrugated plate on its vibration characteristics is studied.The results show that the thickness of corrugated plate structure and the fixed boundary conditions can increase its natural frequencies,improve its stability,and shift the resonance frequencies to higher values;Increasing the length of the corrugated plate structure,the radius and the angle of the coupling circular arc shell will reduce the natural frequencies. |
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