Free vibration analysis of carbon nanotube reinforced composite blades

被引：0

作者：

Wang, Wenqi ^{[1
]}

Wu, Zhihua ^{[1
,2
]}

Tian, Zedong ^{[1
]}

Zhang, Yunfeng ^{[1
]}

机构：

[1] School of Mechanical Engineering, Tiangong University, Tianjin

[2] Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology, Tianjin

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2025年 / 44卷 / 16期

关键词：

carbon nanotubes; dynamic modeling; free vibration; rotating blades;

D O I：

10.13465/j.enki.jvs.2025.16.034

中图分类号：

学科分类号：

摘要：

Taking aero-engine compressor blades as the engineering background, the rotating blades were simplified into carbon nanotube reinforced composite (CNTRC) cantilever thin plates with pre-installation and torsion angles. The geometrical and physical parameters of CNTRC rotating blades were calculated by differential geometry theory and the extended rule of mixture. Considering the influence of centrifugal force, based on Kirchhoff hypothesis and Novozhilov theory, the partial differential kinetic equations of CNTRC rotating blades were established by Hamilton's principle. The partial differential equations of motion were discretised into ordinary differential equations by the Galerkin method. The free vibration characteristics of the CNTRC rotating blades were investigated. The effects of pre-installation angle, torsion angle, carbon nanotube volume fractions, carbon nanotube distributions, rotational speed, and hub radius on the natural frequencies of CNTRC rotating blades were analysed in detail. © 2025 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：329 / 338

页数：9

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