Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2023 - September 06, 2023
This paper deals with the response behavior of the multi-connected vehicles subjected to seismic excitation. The multi-connected vehicles are modeled by a set of vehicle models that have 21 degrees of freedom. The running road is modeled by mass, spring and damper system that have 1 degree of freedom each of three directions. Passengers are modeled by mass, spring and damper system that have 1 degree of freedom each of two directions. Passenger model are placed in 4 locations on the car body. Since the analysis of this multi-connected vehicle is complicated, we made the reduced order model by using sparse estimation. We investigated the influence of passenger characteristics on reduced order model. As a result, the more complex the passenger variation becomes, the more modes are needed to reproduce the behavior of the original model. In addition, modes in which passenger moves mainly account for about a quarter of the modes extracted by sparse estimation.
