VARIATION OF CRITICAL SPEED OF A ROTOR-BEARING SYSTEM WITH SLIGHT RELOCATION OF BEARING

Li Yan; Yin Zeyong

Volume 4 Issue 1

Jan. 1989

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Li Yan, Yin Zeyong. VARIATION OF CRITICAL SPEED OF A ROTOR-BEARING SYSTEM WITH SLIGHT RELOCATION OF BEARING[J]. Journal of Aerospace Power, 1989, 4(1): 63-64,93.

Citation:

Li Yan, Yin Zeyong. VARIATION OF CRITICAL SPEED OF A ROTOR-BEARING SYSTEM WITH SLIGHT RELOCATION OF BEARING[J]. Journal of Aerospace Power, 1989, 4(1): 63-64,93.

Li Yan, Yin Zeyong. VARIATION OF CRITICAL SPEED OF A ROTOR-BEARING SYSTEM WITH SLIGHT RELOCATION OF BEARING[J]. Journal of Aerospace Power, 1989, 4(1): 63-64,93.

Citation:

Li Yan, Yin Zeyong. VARIATION OF CRITICAL SPEED OF A ROTOR-BEARING SYSTEM WITH SLIGHT RELOCATION OF BEARING[J]. Journal of Aerospace Power, 1989, 4(1): 63-64,93.

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VARIATION OF CRITICAL SPEED OF A ROTOR-BEARING SYSTEM WITH SLIGHT RELOCATION OF BEARING

Li Yan,
Yin Zeyong

Nanhua Power Plant Research Institute

Received Date: 1988-08-01
Publish Date: 1989-01-28

Abstract

Abstract

A formula has been derived for calculating the variation of critical speeds of a rotor-bearing system with slight change of bearing position. The folmula can determine which bearing should change position and in which direction it should move so that the desired critical speeds of the system could be reached. The formula has been applied to rearanging the bearings of a certain aeroengine so successfully that its critical speeds are farther away from the working speed range than before.