Fault Diagnosis in Cracked Rotor Based on Fractal Box Counting Dimension
The vibration of large rotating machinery rotor system with a free-cracked shaft and cracked Shafts were simulated by the experiments on rotor experiment platform. According to the fractal characteristics of vibration signal about cracked rotor and free-cracked rotor shaft, fractal box counting dimensions of test data were calculated. The orbit of free-cracked shaft shows as an elliptic, and the corresponding fractal box counting dimension is small. The orbit of cracked shaft becomes more complex and its corresponding fractal box counting dimension is larger than that of free-cracked shafts. Vertical crack has less impact on the vibration of rotor while horizontal cracks have obvious impact. Therefore, the fractal box counting dimension can be used to fault diagnosis of cracked rotor.
cracked rotor vibration fractal box counting dimension fault diagnosis
Liu Xiaobo Shen Liangni
Aeronautical Manufacturing Engineering College Nanchang Hangkong University Nanchang, 330063, China Aerocraft Engineering College Nanchang Hangkong University Nanchang, 330063, China
国际会议
长春
英文
356-360
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）