Impulse detection of welded joints of high-speed railway turnout based on time-frequency and correlation analyses
ID:50 View Protection:PUBLIC Updated Time:2022-12-20 21:07:51 Hits:286 Poster Presentation

Start Time:Pending (Asia/Shanghai)

Duration:Pending

Session:[No Session] [No Session Block]

No files

Abstract
A method for the welded joint-induced impulse detection and time delay determination of collected vibration signal is proposed based on time-frequency and correlation analyses. EEMD is first applied to denoising the collected vibration signals from axle boxes. Then, a time-frequency slice method is developed based on Time reassigned multi-synchrosqueezing transform (TMSST) to obtain impacts from joints of the turnout. The correlation coefficient between the time-frequency slices of the denoising signal and simulated signal is calculated, and the time delays of the two are then obtained for calculating the distance to be corrected. The proposed method is validated by on-site experimental data.
Keywords
Speaker
Hu Hao
suchow university

Comment submit
Verification code Change another
All comments

Important Dates

15th August 2022 25th September 2022 - Manuscript Submission
15th October 2022 - Acceptance Notification
1st November 2022 - Camera Ready Submission
1st November 2022 10th November 2022Early Bird Registration

Contact Us

Website: https://icsmd2022.aconf.org
Secretary: icsmd2022@163.com

Scan the QR  code and join the

WeChat Group