Free vibration characteristics analysis for rotating shaft based on CUF theory

被引：0

作者：

He, Congshuai ^{[2
]}

Zhu, Junchao ^{[1
,2
]}

Hua, Hongxing ^{[2
]}

Xin, Dakuan ^{[1
]}

机构：

[1] School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang

[2] State Key Lahoratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 09期

关键词：

Carrera unified formulation (CUF); penalty function method; rotating shaft; vibration analysis;

D O I：

10.13465/j.cnki.jvs.2024.09.010

中图分类号：

学科分类号：

摘要：

Here, a dynamic analysis model for rotating shaft under classical boundary conditions was established based on Carrera unified formulation (CUF). Using CUF framework, a fully 3D dynamic model was simplified into a ID dynamic model with 3D solving accuracy. Displacement field of rotating shaft was constructed using 2D Taylor formula and improved Fourier series, and boundary conditions were processed using the penalty function method. Then, vibration characteristics were solved by combining energy functional and Hamilton principle. The effectiveness and correctness of this method were verified by comparing its results with finite element results in examples. Furthermore, effects of boundary penalty function factors, geometric parameters and rotating speed on vibration characteristics of rotating shaft were studied. The results showed that the proposed method has features of high efficiency and high precision; it provides an effective analysis means for studying vibration characteristics of rotating shaft. © 2024 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：77 / 83

页数：6

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