Experimental Study of Self-powered and Self-sensing System for the Rail Corrugation In-situ Inspection 钢轨波磨自感知原位检测系统试验研究

Sun，Yuhua1; Wang，Ping2,3; Xu，Jingmang2,3; Wang，Yuan4; Wang，Peigen1; Gao，Mingyuan1,3

2021-09-20

10.3901/JME.2021.18.107

机械工程学报   影响因子和分区

0577-6686

Rail corrugation, as a widely periodic wear pattern of the railway track in urban rail transit, has already affected the safe operation of the railcar. Meanwhile, the rail corrugation also could cause high-pitched noise and vibration of the ground and nearby buildings. The current rail corrugation inspection trolley can only be employed offline, whereas offline monitoring devices require an external power supply. An approach of the rail corrugation in-situ inspection based on the rail vibration energy is proposed. The mechanics of the magnetic-floating energy harvester employs a triple-magnet repellent configuration to enhance broad-band energy harvesting of the rail vibration, and the best start position of the energy harvester is experimentally validated combing with the simulation analysis. The performance of self-powered and self-sensing harvester is verified by the experimental study which includes a comprehensive broad-band sinusoidal sweeping vibration test and a stochastic vibration test based on the measured railway track spectra, and the wavelet theory is implemented together to analyse the time-frequency distribution characteristics of the rail corrugation. Results indicate that the proposed rail corrugation in-situ inspection system could collect the rail vibration energy under the rail corrugation excitation across a wider frequency range and then determine the rail corrugation status by time-frequency characteristics of the induced voltage signal. The new approach of the rail corrugation in-situ inspection proposed by this study could realize the rail corrugation online in-situ inspection without external batteries and reduce manual involvement and workload for railway track inspection. It is very hopeful of accelerating the intelligent process of rail inspection technology.

In-situ inspection Power spectrum density Rail corrugation Self-sensing Stochastic vibration Wavelet

EI

中文

其他

20214911288521

Energy harvesting ; Power spectrum ; Railroad tracks ; Railroads ; Rails ; Stochastic systems ; Vibration analysis ; Wavelet analysis

Energy Conversion Issues:525.5 ; Railway Plant and Structures, General:681.1 ; Control Systems:731.1 ; Mathematics:921 ; Systems Science:961

2-s2.0-85120534158

Scopus

1.College of Engineering and Technology,Southwest University,Chongqing,400716,China
2.School of Civil Engineering,Southwest Jiaotong University,Chengdu,610031,China
3.Key Laboratory of High-speed Railway Engineering,Ministry of Education,Chengdu,610031,China
4.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen,518055,China

Sun，Yuhua,Wang，Ping,Xu，Jingmang,等. Experimental Study of Self-powered and Self-sensing System for the Rail Corrugation In-situ Inspection 钢轨波磨自感知原位检测系统试验研究[J]. 机械工程学报,2021,57(18):107-117.

Sun，Yuhua,Wang，Ping,Xu，Jingmang,Wang，Yuan,Wang，Peigen,&Gao，Mingyuan.(2021).Experimental Study of Self-powered and Self-sensing System for the Rail Corrugation In-situ Inspection 钢轨波磨自感知原位检测系统试验研究.机械工程学报,57(18),107-117.

Sun，Yuhua,et al."Experimental Study of Self-powered and Self-sensing System for the Rail Corrugation In-situ Inspection 钢轨波磨自感知原位检测系统试验研究".机械工程学报 57.18(2021):107-117.