FEM modelling and experimental verification of a rotor system with a open crack

被引：0

作者：

Department of Mechanical Science and Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya-shi, Aichi, 464-8603, Japan ^{[1
]}

机构：

[1] Department of Mechanical Science and Engineering, Nagoya University, Chikusa-ku, Nagoya-shi, Aichi, 464-8603, Furo-cho

来源：

Nihon Kikai Gakkai Ronbunshu C | 2009年 / 753卷 / 1465-1472期

关键词：

Cracked rotor; Diagnosis; Diagnostic technique; Finite element method; Flexible rotor; Modeling; Vibration of rotating body;

D O I：

10.1299/kikaic.75.1465

中图分类号：

学科分类号：

摘要：

Continuous operation of rotating machinery with a rotor crack is a risk condition since the rotor crack grows rapidly and may fail causing a catastrophic accident. This paper develops the finite element model of the rotating shaft with an open crack. The analytical method for the calculation of the natural frequencies of such a rotor system with an open crack is investigated, and the modeling of the open crack element is discussed. The natural frequency of the experimental system is measured for various positions and depths of the open crack. By comparing both the theoretical and experimental results of the natural frequencies, the accuracy of the developed finite element model of the rotating shaft with an open crack is clarified.

引用

页码：1465 / 1472

页数：7

共 17 条

[1]

Wauer J., On the dynamics of cracked rotors:A literature survey, Transaction of the American Society Mechanical Engineers, Applied Mechanics Review, 43, pp. 13-17, (1990)

[2]

Inagaki T., Kanki H., Shiraki K., Transverse Vibration of a General Cracked-Rotor Bearing System, Transactions of the American Society Mechanical Engineers, Journal of Mechanical Design, 104, pp. 345-355, (1982)

[3]

Yamamoto T., Ishida Y., Linear and Nonlinear Rotordy-namics, J. Wiley, (2001)

[4]

Meng G., Gasch R., Stability and Stability Degree of a Cracked Flexible Rotor Supported on Journal Bearings, Transactions of the American Society Mechanical Engineers, Journal of Vibration and Acoustics, 122, pp. 116-125, (2000)

[5]

Yamamoto T., Ishida Y., Vibrations of a Rotating Shaft Containing a Transverse Crack: Vibrations at the Secondary Critical Speed, Transactions of the Japan Society of Mechanical Engineers. C, 57, 538, pp. 57-538, (1991)

[6]

Ishida Y., Hirokawa K., Hirose M., Vibrations of a Cracked Rotor: 3/2-Order Super-Subharmonic and 1/2-Order Subharmonic Oscillations, Transactions of the Japan Society of Mechanical Engineers. C, 60, 579, pp. 3689-3696, (1994)

[7]

Ishida Y., Yamamoto T., Hirokawa K., Theoretical Analysis of a Cracked Rotor with 4 Degrees of Freedom: Major Critical Speed of a Horizontal Rotor, Transactions of the Japan Society of Mechanical Engineers. C, 59, 566, pp. 3095-3100, (1993)

[8]

Ishida Y., Ikeda T., Yamamoto T., Masuda N., Vibrations of a Rotating Shaft Containing a Transverse Crack: 1st Report, Variations of a Resonance Curve Due to the Angular Position of an Unbalance at the Major Critical Speed, Transactions of the Japan Society of Mechanical Engineers. C, 53, 488, pp. 925-932, (1987)

[9]

Ishida Y., Yamamoto T., Hirokawa K., Vibrations of a Rotating Shaft Containing a Transverse Crack (Major Critical Speed of Horizontal Shaft), Transactions of the Japan Society of Mechanical Engineers. C, 58, 551, pp. 2032-2039, (1992)

[10]

Bachschmid N., Pennacchi P., Tanzi E., Vania A., Identification of Transverse Crack Position and Depth in Rotor Systems, Meccanica, pp. 563-582, (2000)

← 1 2 →