TY - JOUR ID - 71745 TI - Investigation of Wagon Derailment Moving on Random Rail Irregularities using Nonlinear 3-Dimentional Model (RESEARCH NOTE) JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Jalili, Mohamad Mahdi AU - Durali, Mohammad AD - Mechanical Engineering, Yazd University AD - Mechanical Engineering, Sharif University of Technology Y1 - 2008 PY - 2008 VL - 21 IS - 4 SP - 385 EP - 400 KW - 3 KW - D Train Model KW - Nonlinear Train Model KW - Random Rail Irregularities KW - derailment KW - Simulation DO - N2 - Rail irregularity is one of the most effective factors in train derailment. theste irregularities have generally random distribution that are assumed to be stationary random and ergodic processes in space, with Gaussian amplitude probabiliy densities and zero mean values. The quality of irregularities, their distribution along the rails and wagon speed are the main factors for train derailment which is investigated in this article. The car model is nonlinear and three-dimensional with 48 DOF. Using simulation results, the safe speed for moving wagon on different types of random rail irregularities is also determined. UR - https://www.ije.ir/article_71745.html L1 - https://www.ije.ir/article_71745_9f0399d0589f01262efb0e33f50b3c4d.pdf ER -