High Speed Train Bracket Arm Visualization Experiment System

In recent years, with the rapid development of high-speed train, its bracket arm structure is one of the main load-bearing structures. In this paper, Abaqus software is used to simulate, fiber Bragg grating (FBG) sensor is used to build a test system, static load test is applied, load identification and strain field reconstruction of the structure are carried out based on load-strain linear superposition algorithm, and the error of the results is less than 8%, which verified the effectiveness of the method. At the same time, the three-dimensional visualization software of the bracket arm model is realized to display its load identification results/strain field status and related data curves, which provides a reasonable reference for the regular maintenance of the train and can effectively improve the operation safety of the train.