摘要
动车组转向架对车辆运行安全至关重要。通过对动车组转向架实际运营的故障数据处理,采用极大似然估计对故障数据进行分布拟合,得出了最佳分布参数值。以转向架的可靠寿命为特征指标,根据抽样检验理论制定了可靠性试验方案,研究结果为动车组转向架可靠性试验提供了理论依据。
The Electric Multiple Units （EMUs） ＇ bogie is of great importance to the operation safety of vehicles. Through processing the fault data of the actual operation of the EMUs＇ bogie, the distribution of the failure data is fitted by means of maximum likelihood estimation, and the optimal distribution parameters are obtained. The reliability test scheme is developed according to the theory of sampling inspection. The results provide theoretical basis for the reliability test of EMUs＇ bogie.
出处
《铁道机车车辆》
2017年第3期1-3,共3页
Railway Locomotive & Car
基金
中国铁路总公司科技研究开发计划项目(2015T005-A)
关键词
转向架
参数估计
可靠寿命
可靠性试验
bogie
parameter estimation
reliable lifetime
reliability test
