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Research on the Finite Element Impact-Contact Analytical Model of Dual-Rotor System and its Diagnosis Method
Author(s): 
Pages: 789-794
Year: Issue:  5
Journal: JOURNAL OF AEROSPACE POWER

Keyword:  航空、航天推进系统碰摩模型有限元故障诊断双转子系统;
Abstract: 针对常用碰摩力模型的不足,应用ANSYS软件在求解转静子之间的碰摩力与法向相对位移之间的关系的基础上得到了碰摩力模型,并与整体传递系数法相结合建立转静件碰摩的动力学方程.采用整体传递系数法计算转子系统的动力特性,进而求解双转子系统的瞬态响应.利用时域波形、频谱分析和小波变换对响应进行了分析,得出并分析了相关的故障特征.
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