連結車両のモデル低次元化における地震波の違いや走行路の有無による影響の検討

抄録

It is important to analyze responses of a high-speed-moving vehicle when it receives a seismic wave, because such vehicle has risks of leaving the rail and overturning. It needs much simulation cost to analyze them because of complexities of the car models. So, we investigated about the reduced-order-model which includes some vibration modes chosen by sparse estimation. Especially we studied effects of types of seismic waves and with/without running roads. We used three types of earthquakes, and made the reduced-order-model which is suitable for each seismic wave to estimate risks of overturning. In conclusion, it was possible to estimate risks of overturning by using about 10% vibration modes of the original model. And it needs more vibration modes when we considered the running road than when not considering it. Also, we found that we could estimate risks of them by using one common model for three types of earthquakes.