構造同定

[I-187] Parameter identification of vehicles, bridge and road profile using vibration data of multiple vehicles based on Particle Swarm Optimization

*村上 翔¹、山本 亨輔¹ (1. 筑波大学)

Keywords:vehicle vibration, Particle Swarm Optimization, vehicle bridge interaction

At present, various problems occur in Japan in terms of bridges, vehicles and pavements. Therefore, development of bridge inspection technology that can be implemented at low cost is an urgent issue. There are many studies to identify the characteristics of bridges and vehicles from vibration data obtained by vehicles traveling on bridges. In this study, we propose and verify vehicle / bridge / road surface parameter identification method using vibration data of multiple vehicles based on particle swarm optimization as identification method. As a result, this method could estimate if some parameters were known. In addition, it was possible to detect the decrease in rigidity of the bridge.