Blar i NTNU Open på forfatter "Zhai, Donghai"
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A siamese network-based non-contact measurement method for railway catenary uplift trained in a free vibration test
Duan, Fuchuan; Liu, Zhigang; Zhai, Donghai; Rønnquist, Nils Erik Anders (Peer reviewed; Journal article, 2020)The vibration of the catenary that is initiated by the passing pantograph has a direct influence on the pantograph–catenary contact performance. Monitoring the dynamic uplift of the catenary can help inspectors to evaluate ... -
Vibration Measurement and Wave Reflection Analysis in an Electrified Railway Catenary Based on Analytical Methods
Duan, Fuchuan; Liu, Zhigang; Song, Yang; Derosa, Stefano; Rønnquist, Anders; Zhai, Donghai (Peer reviewed; Journal article, 2021)The wave propagation property of the catenary directly affects the pantograph–catenary interaction performance. Specifically, wave reflection and transmission occurring at waveguide discontinuities, particularly at dropper ...