摘要
用脉冲激励法对某发动机前轴承弹性支承进行了试验模态分析，并介绍了试验模态分析的方法和试验设备。所得模态分析结果表明，相干函数值均大于０．９，弹性支承的固有频率。
A pulse excitation
method and the test equipment for modal test were introduced.An experiment modal analysis of
the front bearing's spring support of engine was completed.The results will be delivered to the
design department of the engine structure,and will be helpful for vibration analysis of the turbojet
engine
出处
《推进技术》
EI
CAS
CSCD
北大核心
1999年第3期61-63,85,共4页
Journal of Propulsion Technology
关键词
涡轮喷气发动机
支承结构
轴承
模态分析
Turbojet engine,Bearing structure,Elastic vibration,Modal analysis,Modal
vibration test
