APPLICATION OF WAVELET MAP TO DETECTION OF CRACKED ROTOR

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概要

• 論文の詳細を見る

• The dynamic equation of the cracked rotor in dimensionless form is modelled, which is based on the simple hinge crack model and the local flexibility theorem. The numerical simulation solutions of the uncracked rotor and the cracked rotor are obtained from the model. By the continuous Wavelet Transform, the wavelet magnitude map features of the uncracked rotor and the cracked rotor are investigated; the difference between them is presented, and a new detection algorithm using wavelet magnitude map to identify the crack is proposed. The influence of the scale factor on the accuracy and validity of the wavelet magnitude map is analyzed; the preferred scale factor is suggested. Experiments on the cracked rotor and the uncracked rotor verify the availability and validity of the wavelet magnitude map in identification of cracked rotor for engineering practices.

• 一般社団法人日本機械学会の論文

著者

• Chen Jin

  The State Key Laboratory Of Vibration Shock & Noise Shanghai Jiao Tong University

• Zou Jian

  The State Key Laboratory Of Vibration Shock & Noise Shanghai Jiao Tong University

• Chen Jin

  The State Key Laboratory Of Mechanical System And Vibration Shanghai Jiao Tong University

• Geng Zun

  School of Mechanical Engineering, Shandong University

• Geng Zun

  School Of Mechanical Engineering Shandong University

関連論文

• Vibration analysis and crack identification of a rotor with open cracks
• APPLICATION OF WAVELET MAP TO DETECTION OF CRACKED ROTOR

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