Blar i NTNU Open på forfatter "Jiang, Tengjiao"
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Assessment of pantograph-catenary interaction in a railway overlap section via a novel optical-based method
Jiang, Tengjiao; Frøseth, Gunnstein Thomas; Nåvik, Petter Juell; Rønnquist, Anders (Peer reviewed; Journal article, 2022)Smooth pantograph-catenary contact is essential for regular train operation. However, catenary section overlaps are locations where peak contact forces occur, which significantly affects current collection quality. This ... -
Development and Application of a Vision-Based System for Structural Monitoring of Railway Catenary System
Jiang, Tengjiao (Doctoral theses at NTNU;2021:280, Doctoral thesis, 2021)With the continuous increase of train speed and the expansion of the railway network, health monitoring and predictive maintenance of railway infrastructure are becoming increasingly important. The increasing investments ... -
Effect of Stockbridge Dampers on the Vibration Response of Suspension Bridge Hangers
Solheim, Ingvild Mariannedatter (Master thesis, 2022)Vibrasjoner i hengestengene på Hålogalandsbrua forårsaket av virvelavløsning ble observert under byggingen av broen. Vibrasjonsdempere ble installert for å redusere amplituden til vibrasjonene, men flere av demperne ble ... -
The Effects of Spatially Distributed Damping on the Contact Force in Railway Pantograph-Catenary Interactions
Song, Yang; Jiang, Tengjiao; Rønnquist, Anders; Nåvik, Petter Juell; Frøseth, Gunnstein Thomas (Peer reviewed; Journal article, 2021)According to field measurements, the damping ratio of a railway catenary varies along the span length and shows an inherent uncertainty. In numerical simulations, it is common to assume a constant damping ratio. Herein, a ... -
Geometry deviation effects of railway catenaries on pantograph–catenary interaction: a case study in Norwegian Railway System
Song, Yang; Jiang, Tengjiao; Nåvik, Petter Juell; Rønnquist, Anders (Peer reviewed; Journal article, 2021)This paper presents a non-contact measurement of the realistic catenary geometry deviation in the Norwegian railway network through a laser rangefinder. The random geometry deviation is included in the catenary model to ... -
Identification of short-wavelength contact wire irregularities in electrified railway pantograph–catenary system
Song, Yang; Rønnquist, Anders; Jiang, Tengjiao; Nåvik, Petter Juell (Peer reviewed; Journal article, 2021)The effect of two common types of short-wavelength irregularities (local imperfections and periodic short-wavelength irregularities) of the railway catenary on the pantograph–catenary interaction performance are studied ... -
A robust line-tracking photogrammetry method for uplift measurements of railway catenary systems in noisy backgrounds
Jiang, Tengjiao; Frøseth, Gunnstein Thomas; Rønnquist, Anders; Fagerholt, Egil (Peer reviewed; Journal article, 2020)For electrical railways, contact wires are used to ensure stable and continuous power supply to trains operating on the infrastructure. One crucial design parameter used to control the catenary design is the vertical ...