Research of Aircraft Cable Fault Detecting Method Based on Hilbert Huang Transformation

摘要：

Aircraft cable fault diagnosing is considered to be most important for engineering maintenance. Several methods for cables testing have been developed, such as TDR, FDR and TFDR. Time Domain Reflectometry (TDR) relays much on impedance changes on the fault position, which is hard to using in detecting high resistance defects, intermittent defects; Time Frequency Domain Reflectometry (TFDR) method is used to locate intermittent faults, continuous faults and cross-connection faults aircraft wire, however, the algorithm of TFDR is complex. To the Hard Fault(short circuit and open circuit), the HilbertHuang Transform method is used in determining the optimal bandwidth of the incident reference signal and analyzing the phase and amplitude difference of superimposed signal which from the incident signal and the reflected signal on defects. To the Fray Fault, Time and Frequency Domain Reflectometry method can be used with the signal processing method with Hilbert-Huang Transform. The experimental results indicate that this method effectively detect all types of aircraft cable fault, particularly for short lengths of cable.

关键词： Aircraft Cable Fray Fault Time and Frequency Domain Reflectometry (TFDR) Hilbert Huang Transformation (HHT)

作者: Tao Jing Lu Zhang Xudong Shi Liwen Wang

作者单位: The Aeronautical Automation College of Civil Aviation University of China,Tianjin,300300 The Aeronautical Automation College of Civil Aviation University of China,Tianjin,300300 Aeronautica

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 138-143

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）