Title:
METHOD AND SYSTEM FOR IDENTIFYING HIGH-ORDER TRANSVERSE MODE OF STEEL RAIL SO AS TO MEASURE LONGITUDINAL FORCE
Document Type and Number:
WIPO Patent Application WO/2023/039868
Kind Code:
A1
Abstract:
A method for identifying a high-order transverse mode of a steel rail so as to measure longitudinal force, comprising: equally distributing a plurality of sensors at a neutral axis position of a steel rail, each sensor serving as a monitoring point; equally selecting a plurality of excitation points at the neutral axis position of the steel rail, and laterally exciting a plurality of excitation points by means of an impact hammer; collecting response data of transverse excitation recorded at a plurality of monitoring points, and analyzing modal features of the steel rail according to the response data; and performing modal analysis on sensor arrangement and data processing, and calculating according to the modal analysis result of transverse vibration to obtain the longitudinal force of the steel rail. The described method has good testing quality, and can effectively identify transverse modal features of a steel rail. Moreover, the comparability between test data is good, and test data from different times and different places can be effectively compared and analyzed, verifying one another, thus the validity of the data is ensured. Further provided is a system for identifying a high-order transverse mode of a steel rail so as to measure longitudinal force.
Inventors:
CAI XIAOYONG (CN)
WANG DAZHI (CN)
YUE GUODONG (CN)
LI ZHIGUANG (CN)
YANG LI (CN)
CHEN XIANGJI (CN)
HONG JIAXI (CN)
CHEN YULIANG (CN)
NING HUANYU (CN)
ZHANG SEN (CN)
WANG DAZHI (CN)
YUE GUODONG (CN)
LI ZHIGUANG (CN)
YANG LI (CN)
CHEN XIANGJI (CN)
HONG JIAXI (CN)
CHEN YULIANG (CN)
NING HUANYU (CN)
ZHANG SEN (CN)
Application Number:
PCT/CN2021/119249
Publication Date:
March 23, 2023
Filing Date:
September 18, 2021
Export Citation:
Assignee:
SHENYANG RAILWAY SIGNAL CO LTD (CN)
UNIV DALIAN TECH (CN)
CRSC XIAN RAIL TRANSIT IND GROUP CO LTD (CN)
UNIV DALIAN TECH (CN)
CRSC XIAN RAIL TRANSIT IND GROUP CO LTD (CN)
International Classes:
B61K9/08
Foreign References:
| CN110406559A | 2019-11-05 | |||
| CN110901689A | 2020-03-24 | |||
| CN110864836A | 2020-03-06 | |||
| CN209243700U | 2019-08-13 | |||
| CN209296262U | 2019-08-23 | |||
| US20200033226A1 | 2020-01-30 |
Attorney, Agent or Firm:
BEIJING IPLING INTELLECTUAL PROPERTY LAW FIRM (CN)
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