中国铁路重载货车关键技术和可靠性评价

中国铁路重载货车立足于高起点、高标准，积极创新．研发了满足中国特有使用条件的载重80t铝合金、不锈钢运煤专用敞车，以低动力转向架、车体轻量化等核心技术为依托，建立了中国铁路重载货车技术平台和标准体系，深入开展基础性和可靠性研究，全面应用重载货车性能仿真分析、试验台试验和线路综合性试验等方法，形成了中国铁路重载货车可靠性评价体系。

Key Technologies and Reliability Evaluation on Chinese Railway Heavy Haul Freight Cars

The paper states conditions and mode of transportation on Da-Qin lines, which restrict heavy haul freight cars technologies and put strict requirements on their safety and reliability. It introduces core technologies and developments that have been achieved for railway heavy haul freight cars, analyzes reliability of heavy haul freight cars technologies and their key components, and focuses on works that have been done in recent years on reliability research and results on heavy haul freight cars. By introduction of current status of reliability evaluation system for heavy haul freight cars, the paper represents the prospect of reliability evaluation on Chinese heavy haul freight cars after the separation of passenger transportation from freight transportation.