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中文摘要：
高速铁路是一个复杂的系统工程,涉及一系列关键力学问题.本文讨论高速铁路工程中的3个关键固体力学问题：高速铁路轮轨滚动接触力学问题、高速列车关键结构部件疲劳问题和高速列车与线路结构动态相互作用问题;概述了其研究进展与工程应用;提出了今后进一步结合高速铁路工程需求的研究方向.
英文摘要：
High-speed railway belongs to complex system engineering,in which a series of key mechanics problems are involved.The present paper discusses three key problems of solid mechanics existing in highspeed railway engineering,i.e.wheel-rail rolling contact mechanics,fatigue of high-speed train components and dynamic interactions between high-speed trains and infrastructures.The latest advances in these research areas are reviewed as well as their applications to high-speed railway engineering.Some suggestions for future studies are offered based on the demand from high-speed railway engineering practice.
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