论文部分内容阅读
1 前言 自1964年日本建成东海道高速铁路新干线以来,由于其运量大、速度快、能耗低,污染小、运价廉、占地少和安全可靠舒适等一系列技术经济优势,引起了世界范围的重视,各国竟相修建。高速铁路技术发展日新月异,形成世界范围内振兴铁路的新局面。法国TGV列车试验瞬间速度已创造了515.3km/h的世界纪录,充分显示了铁路提速的潜力。 为了保证高速列车运行的安全性,旅客的舒适性,装备的可靠性与耐久性,要进行列车与轨(或桥)耦合系统动力学的研究,提高列车抗蛇行失稳的临界速度的研究,轮轨粘着特性的研究,弓网系统动力学的研究,列车气动性能的研究,车体结构的轻量及优化研究和高速铁路的噪音及振动的传播研究。其中需要应用结构动力学、多体系统动力学、线性和非线性振动理论、
1 Introduction Since Japan built the Tokaido high-speed railway Shinkansen in 1964, due to its advantages such as large capacity, high speed, low energy consumption, low pollution, low cost, small floor space, safe, reliable and comfortable a series of technical and economic advantages The world’s attention, all countries actually build. The rapid development of high-speed railway technology, the formation of a new situation in the revitalization of the railway within the world. France TGV train test instantaneous speed has created a 515.3km / h world record, fully demonstrated the potential of the railway speed. In order to ensure the safety of high-speed train operation, the comfort of passengers and the reliability and durability of equipment, it is necessary to study the dynamics of train-rail coupling system and to improve the critical speed of train anti-hunting instability. Research on wheel and rail adhesion characteristics, research on bow-net system dynamics, research on train aerodynamic performance, lightweight and optimization of body structure and propagation of noise and vibration in high-speed railway. Which need to apply structural dynamics, multi-body system dynamics, linear and nonlinear vibration theory,