机车车辆产品寿命类别与评判方法

Category and Evaluation Method of Rolling Stock Product Life

针对机车车辆产品寿命分散性、故障影响多样性和运用需求差异性等特点,从速度与里程、时间与环境、工作频次与负荷等方面分析了机车车辆产品寿命影响因素;结合经验法、计算法、试验法、统计法等分析了机车车辆产品寿命常用确定方法及其适用范围;基于可靠性技术和寿命周期费用方法,按照安全寿命、有效寿命、经济寿命、技术寿命、物理寿命等对机车车辆产品使用寿命进行分类定义和评判;示例给出动车组部分产品使用寿命分析结果。

According to the characteristics of rolling stock product life dispersion,fault influence diversity and application demand difference,the influencing factors of rolling stock product life are analyzed from the aspects of speed and mileage,time and environment,working frequency and load.Combined with empirical method,calculation method,test method and statistical method,this paper analyzes the common methods for determining the service life of locomotive and rolling stock products and their application scope.Based on reliability technology and life cycle cost method,the service life of rolling stock product is classified,defined and evaluated according to safety life,effective life,economic life,technical life and physical life.An example is given to analyze the service life of some EMU products.