標題: ESTIMATION OF LINEARIZED DYNAMIC CHARACTERISTICS OF BEARINGS USING SYNCHRONOUS RESPONSE
作者: CHEN, JH
LEE, AC
交大名義發表
機械工程學系
National Chiao Tung University
Department of Mechanical Engineering
公開日期: 1-二月-1995
摘要: This paper presents a new method for estimating linearized dynamic characteristics of bearings using a priori information about the rotor. The rotor-bearing systems considered here are composed of a flexible shaft, which may be changed stepwise along the axial direction, and multiple rigid disks supported on anisotropic bearings. The main feature of this estimation technique is that it eliminates the need to measure the external input force. Since the system considered here is driven by an unbalance force, the steady state of the rotor will contain only a synchronous frequency component. By applying a Fourier transform to the measured displacement, we can obtain the coefficients of the sine and cosine terms with respect to the synchronous frequency. Finally, we formulate the normal equation by using the relations between these coefficients and the known system parameters; the characteristics of the bearings are then estimated by the least-squares method. The theoretical development of the method is presented together with simulation and experimental results.
URI: http://hdl.handle.net/11536/2060
ISSN: 0020-7403
期刊: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume: 37
Issue: 2
起始頁: 197
結束頁: 219
顯示於類別:期刊論文


文件中的檔案:

  1. A1995QM14100006.pdf