噪声与振动控制2016，Vol.36Issue(3)：38-41,189,5.DOI:10.3969/j.issn.1006-1335.2016.03.008
重型燃气轮机支撑结构动刚度计算分析方法
Calculation and Test of Dynamic Stiffness of Gas Turbine Supports
摘要
Abstract
Gas turbine is a high-speed rotating machine. The dynamic characteristics of its rotor have important effects on the safety, while the stiffness of its supports has significant effects on the critical speed of the rotor. Therefore, searching for the dynamic stiffness of the gas turbine supports plays an important role in R&D. In this paper, the dynamic stiffness of the gas turbine supports is measured by testing and calculated with finite element analysis software Ansys. First of all, a 1:4 scale-reduced testing model of the support is prepared, and the hammering method is used to test the dynamic characteristics of the model in different working conditions. Then, the model is simulated with the finite element analysis software Ansys. The results of the testing and the finite element analysis of the model are in good agreement. The results show that the FEA analysis for dynamic stiffness simulation of the gas turbine supports is feasible and the result is reasonable. This work has some reference value for gas turbine vibration study.关键词
振动与波/燃气轮机/动刚度/支撑结构/有限元仿真Key words
vibration and wave/gas turbine/dynamic stiffness/support structure/finite element simulatio分类
机械制造引用本文复制引用
汤茂森,荆建平,周惠文,周业涛,王志强..重型燃气轮机支撑结构动刚度计算分析方法[J].噪声与振动控制,2016,36(3):38-41,189,5.基金项目
国家自然科学基金资助项目(11272204) （11272204）
