【摘要】 采用子结构传递矩阵—模态综合法研究了航空发动机整机的瞬态动力特性及稳定性。分析了各种因素（突加不平衡大小及位置、转速、油膜间隙等）对瞬态响应和稳定性的影响规律，得到一些有价值的结论。更多还原

【Abstract】 Transient dynamic characteristics and stability of a rotor-support-casing system in an aeroengine are analyzed by means of substructure transfer matrix-modal synthetic method.The effects of various sudden unbalance levels,radial oil film clearances of damper and different rotor speeds on the transient response of the entire engine system are investigated and some valuable conclusions have been drawn.The substructure transfer matrix-modal synthetic method discussed in the paper is available in theory and practice.更多还原