Diagnosing of rolling stock details and way designs by acoustic emission technique

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Diagnosing of rolling stock details and way designs by acoustic emission technique

Muraviev, Vitaly

Train motion safety depends first of all from the defect absence in equipment of trains, railway and artificial constructions (bridges). New techniques based on the Acoustic Emission (AE) method allow to increase the reliability of these elements. Its advantages are decrease of human factor influence on the testing results, exception of time-consuming scanning process, the possibility of testing large-sized structures with complex geometry in corpore, testing process automation, accumulation and documenting of the information on testing results. The research results concerning the revealing of growing defects and their hazard evaluation in the railway objects (metal bridge spans, railways on the bridge, rail welded connections, freight-car truck cast details). The future prospect of the suggested method allows creating of the complex for continuous monitoring of railway objects technical condition. The solving of the monitoring problem connected with the complicated engineering structures provides the possibility to find out the defects at their early stage, to watch their further progress and degree of danger as well as to evaluate the general structure condition.