Vibration Response Analysis of Fiber-Reinforced Composite Thin Shell Based on Multilevel Correction Technique

doi:10.12068/j.issn.1005-3026.2019.01.013

Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (1): 63-69.DOI: 10.12068/j.issn.1005-3026.2019.01.013

• Mechanical Engineering • Previous Articles Next Articles

Vibration Response Analysis of Fiber-Reinforced Composite Thin Shell Based on Multilevel Correction Technique

LI Hui^1,2， ZHOU Zheng-xue^1,2， WU Teng-fei^1,2， HAN Qing-kai^1,2

1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2. Key Laboratory of Vibration and Control of Aero-Propulsion System， Ministry of Education， Northeastern University， Shenyang 110819， China.

Received:2017-10-20 Revised:2017-10-20 Online:2019-01-15 Published:2019-01-28
Contact: LI Hui
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Abstract

Abstract: The vibration response of fiber-reinforced composite thin shell was analyzed based on the multilevel correction technique. Firstly， the theoretical model was established by considering the influence of fiber orientation， and the vibration response was solved by using the Ritz method. Next， the more precise theoretical model of composite thin shell was obtained by using the multi-level correction technique and the experimental data. Finally， T300 fiber/epoxy composite thin shell was taken as the study object and the laser scanning test system was set up to obtain the first 6 natural frequencies， modal shapes and vibration responses. By comparing the experimental resonant response results with the calculated results after adopting the multilevel correction technique， it was found that the calculation error is in the range of 5.2%~14.3%， which is within an acceptable level， and thus the correctness of the above analytical method was verified.

Key words: fiber reinforcement, composite thin shell, vibration response, base excitation, multilevel correction

CLC Number:

TB535

LI Hui， ZHOU Zheng-xue， WU Teng-fei， HAN Qing-kai. Vibration Response Analysis of Fiber-Reinforced Composite Thin Shell Based on Multilevel Correction Technique[J]. Journal of Northeastern University Natural Science, 2019, 40(1): 63-69.

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Vibration Response Analysis of Fiber-Reinforced Composite Thin Shell Based on Multilevel Correction Technique

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