Investigation of Wagon Derailment Moving on Random Rail Irregularities using Nonlinear ۳-Dimentional Model (RESEARCH NOTE)

سال انتشار: 1387
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 150

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شناسه ملی سند علمی:

JR_IJE-21-4_007

تاریخ نمایه سازی: 18 بهمن 1400

چکیده مقاله:

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 ۴۸ DOF. Using simulation results, the safe speed for moving wagon on different types of random rail irregularities is also determined.

نویسندگان

Mohamad Mahdi Jalili

Mechanical Engineering, Yazd University

Mohammad Durali

Mechanical Engineering, Sharif University of Technology