Frequency Reliability and Sensitivity Analysis on the Rotor System

摘要：

　　Multispan rotor system(H858 compressor) is studied in this paper.Based on the rotor dynamic theory,complex rotor system is simplified reasonably,and finite element model is established using finite element software(MSC.Patran&Nastran).The natural frequencies are obtained in the condition of bending vibration,and the functions of frequencies and variables are matched on the basis of the artificial neural network (ANN) technique.With the criterion that the absolute value of the difference between the natural frequency and forcing frequency,the reliability mode and the systems safety probability are defined,then the frequency reliability sensitivity analysis method is presented.And the equations of the related sensitivity with respect to mean values and variances are mathematically expressed.The reliability and sensitivity of rotor system are analyzed,which demonstrate the effectiveness and accuracy of the proposed method.

关键词： Rotor FEM Bending vibration Frequency reliability Sensitivity

作者: Chunmei Lü Yimin Zhang He Li Xingang Wang Yu Liu

作者单位: School of Mechanical Engineering and Automation, Northeastern University, Shenyang, China

会议类型: 国际会议

会议名称: 3rd International Conference on Frontiers of Manufacturing and Design Science(第三届制造与设计科学前沿国际会议(ICFMD))

会议地点: 香港

会议语种:英文

页码: 1296-1300

在线出版日期: 2012-12-11（万方平台首次上网日期，不代表论文的发表时间）