中文摘要：

针对城市地铁钢轨损伤维护预测的需要，研究建立基于超声探测的钢轨损伤健康管理系统及实现方法．提出基于决策分析的健康管理系统框架结构，对其中的系统数据库、文件系统和数据结构关系进行讨论．用分层设计思想定义各功能模块，采用软件技术和自动化数据流处理，实现主界面模块、用户管理模块、线路管理模块、线路匹配模块等的开发与设计．系统能结合不同环境条件下的历史数据集和实际测试数据集，实现钢轨疲劳寿命预测．

英文摘要：

Based on the need for subway rail damage maintenance and prediction, a method of rail damage health management system based on ultrasonic detection was proposed and implemented. Framework of health management system based on decision support analysis was put forward, system database, file system and data structure were discussed as well. Methodology of hierarchical level was introduced according to module definition. Modules of main interface, user management interface, line management interface, line match interface were designed and developed with the use of software technique and automated data stream processing. Historical data set and test data set was integrated with the system in order to address module description of rail defect and damage propagation, so as to achieve rail fatigue life prediction.