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| Random vibration analysis of the composite laminated sector plate considering parametric uncertainty |
| Received:November 27, 2023 Revised:February 04, 2024 |
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| DOI：10.7511/jslx20231127003 |
| KeyWord:interval uncertainty composite laminated sector plate random vibration improved Kriging model |
| Author | Institution |
| 陈昱更 |
中南大学 机电工程学院, 长沙 ;中南大学 极端服役性能精准制造国家重点实验室, 长沙 |
| 王青山 |
中南大学 机电工程学院, 长沙 ;中南大学 极端服役性能精准制造国家重点实验室, 长沙 |
| 钟锐 |
中南大学 机电工程学院, 长沙 ;中南大学 极端服役性能精准制造国家重点实验室, 长沙 |
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| Abstract: |
| The random vibration analysis of composite structures has long been a significant concern in the field of structural dynamics.However,existing researches have been conducted based on deterministic parameters,neglecting the influence of parametric uncertainty on the random vibration of structures.This paper focuses on a composite laminated sector plate,considering the impact of interval uncertainty of material parameters on the random vibration of the structure.An improved Kriging model is employed to establish a rapid analysis model for the random vibration of the composite laminated sector plate.Additionally,this paper investigates the influence of different uncertain parameters on the lateral random vibration characteristics of the composite laminated sector plate.Furthermore,a comparison with Monte Carlo simulation results is conducted,verifying the effectiveness of the proposed method.Numerical analysis results indicate that the random vibration of the composite laminated sector plate exhibits varying sensitivity to different uncertain parameters,which can produce obvious differences on lateral random vibration responses of the structure.The research findings can provide a reference for predicting the uncertain random vibration response of composite laminated sector plates in practical engineering applications. |
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