Contact strip of pantograph heuristic wear model and its application

The contact strip of pantograph is an essential component that directly contacts with overhead catenary wire and collects current, it is crucial to seek a convenient and accurate wear predictive model for this important component. Combining mechanistic analysis and data-driven approaches, this study established a heuristic wear model of strip, which has been validated the flexibility and accuracy through parameter analysis and test data. Furthermore, based on the wear model, a correlation analysis of multiple influencing factors on pantograph strip wear is conducted and the value of Fip is calculated. The analysis results showed that current and arcing have the greatest influence on wear and provided a reference for setting the static force of pantograph under different operating conditions.