摘要
本文研究了具有干摩擦阻尼的带冠叶盘系统振动响应的求解问题。解决了时频法中由于叠混和泄漏而使迭代发散的问题。最后用时频法获得了令人满意的响应计算结果。
The paper deals with dynamic response solution problem of shrouded bladed disc assemblies with dry friction.A hypothesis of multi-harmonic variables has been introduced into AFT method,so that its divergence problem due to alias and leakage error in iteration has been solved.This improved AFT method is independent of the harmonic number in variables of the friction number elements in the system.So it is a general method for solving dynamic response of a non-linear system.A model of cyclic two-dimensional substructure for a bladed disc has been calculated by this method,and the results have been compared with those of the direct integration method.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1998年第4期366-370,共5页
Journal of Aerospace Power
