Study on the Collision Acceleration Data Filtering of the Passenger Trailer for the Article 16 of the Rolling Stock Crashworthiness Regulations

철도안전법 시행지침 16조의 충격가속도 평가를 위한 객차의 데이터 필터링 연구

In the article 16 of the domestic rolling stock crashworthiness regulations, the collision acceleration level during collision accidents should remain under the maximum 7.5g and the average 5g. By the way, the accelerations obtained in crash simulations and tests contain many kinds of high frequency components due to numerical oscillations or noisy signals. So, this paper aims to develop reliable post-processing methods to filter high frequency oscillations and extract the rigid body motions of passenger rail cars. For this study we used the 1-dimensional dynamic model of KHST (Korean high-speed train), and evaluated acceleration data at the driver's area in the first power car and the passenger area in the following trailer.