Reduced model of a rotor-shaft system using modified SEREP

被引：24

作者：

Das, A. S. ^{[2
]}

Dutt, J. K. ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Dept Mech Engn, New Delhi 110016, India

[2] Indian Inst Technol Kharagpur, Dept Mech Engn, Kharagpur 721302, W Bengal, India

来源：

MECHANICS RESEARCH COMMUNICATIONS | 2008年 / 35卷 / 06期

关键词：

SEREP modelling of rotors; reduced model of rotors-shaft system; modelling of rotors with modified SEREP;

D O I：

10.1016/j.mechrescom.2008.04.004

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A modified System Equivalent Reduction Expansion Process (SEREP) is reported to reduce large linear system-equations of motion, which also include gyroscopic effect, internal and external damping. The process is employed on equations of motion written in state-space and utilizes both right and left eigenvectors of the original system unlike only the former in conventional SEREP approach. Numerical example with a finite element model representing multi-disc rotor-shaft-bearing-dynamics shows effectiveness of the process. Nice agreement of Campbell diagrams, FRF plots and unbalance response amplitude between reduced and original systems show usefulness of the reduction process. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：398 / 407

页数：10

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