Dynamic analyses for the rotor-journal bearing system of a variable speed rotary compressor

被引：38

作者：

Wang, Zengli ^{[1
]}

Yu, Xiaoling ^{[1
]}

Liu, Feilong ^{[1
]}

Feng, Quanke ^{[1
]}

Tan, Qin ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Peoples R China

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2013年 / 36卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Variable speed rotary compressor; Rotor-journal bearing system; Dynamic analysis; Vibration characteristics;

D O I：

10.1016/j.ijrefrig.2013.03.013

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In the rotary compressor, the rolling piston and the contacted rotor-journal bearing system are main moving components. They suffer very large periodically varying loads introduced by the inertia force, the contact force and the gas force. These loads change rapidly with speed variation of the compressor. They always lead to serious vibration of the system, and then result in abrasion and performance reduction. In this paper, the dynamic behavior of the rotor-journal bearing system were calculated by solving three-dimensional numerical model using finite element method, and the vibration characteristics of the system were investigated according to the calculation results. The natural frequencies and vibration modes were obtained. The stress, displacement and axis orbit of the rotor center were calculated considering the speed variation of the motor. Via the established numerical model, vibration characteristics of a newly designed compressor can be predicted, and optimization can be done to reduce the vibration. (C) 2013 Elsevier Ltd and IIR. All rights reserved.

引用

页码：1938 / 1950

页数：13

共 26 条

[1] A built-in bearing sensor to measure the shaft motion of a small rotary compressor for air conditioning [J].

Ahn, HJ ;

Han, DC ;

Hwang, IS .

TRIBOLOGY INTERNATIONAL, 2003, 36 (08) :561-572

[2]

[Anonymous], MECH MANAGEMENT DEV

[3]

Bathe K.-J., 2006, FINITE ELEMENT PROCE

[4]

Bian D.Y., 2008, DEFECT TIMOSHENKO BE, P1

[5]

Campos J., 2004, ROTORDYNAMIC MODELIN

[6]

Dufour R., 1998, 1998 INT COMPR ENG C, pC

[7]

Hattori H., 1990, 1990 INT COMPR ENG C

[8]

Hattori H., 1991, JPN SOC MECH ENG, P251

[9] Modal analyses and experiments for engine crankshafts [J].

Kang, Y ;

Sheen, GJ ;

Tseng, MH ;

Tu, SH ;

Chiang, HW .

JOURNAL OF SOUND AND VIBRATION, 1998, 214 (03) :413-430

[10] Numerical study on the lubrication oil distribution in a refrigeration rotary compressor [J].

Kim, HJ ;

Lancey, TW .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2003, 26 (07) :800-808

← 1 2 3 →