基于MATLAB App Designer的牵引电机滚动轴承可靠性评估系统设计

Design of Reliability Evaluation System of Traction Motor Rolling Bearing Based on MATLAB App Designer

牵引电机滚动轴承在运行过程中由于存在载荷不均匀和运行环境恶劣的问题,需要评估地铁车辆牵引电机滚动轴承的可靠性。文中基于MATLAB App Designer对牵引电机滚动轴承可靠性评估系统进行了设计开发。通过提取振动信号的时域、频域特征指标,利用主成分分析法进行特征融合。将融合后的特征指标作为威布尔比例故障率模型的响应协变量,采用飞蛾扑火优化算法寻优威布尔比例故障率模型参数,代入到可靠度函数计算出任意时刻可靠度。使用MATLAB App Designer创建数据录入、数据分析和可靠性评估等模块界面。实验结果表明,所设计的牵引电机滚动轴承可靠性评估系统界面友好、易于操作、可靠性评估效果良好,可广泛应用于不同领域。

Due to the uneven load and harsh operating environment during the operation of rolling bearings of traction motors,it is necessary to evaluate the reliability of rolling bearings of traction motors for metro vehicles.Based on MATLAB App Designer,the reliability evaluation system of traction motor rolling bearing is designed and developed.By extracting the time-domain and frequency-domain feature indexes of the vibration signal,the principal component analysis method is used for feature fusion.The fused characteristic index is used as the response covariate of the Weibull proportional hazard model.The moth-fighting optimization algorithm is used to optimize the Weibull proportional hazard model parameters,and the reliability function is substituted into the reliability function to calculate the reliability at any time.MATLAB App Designer is used to create module interfaces for data entry,data analysis and reliability evaluation.Experimental results show that the designed reliability evaluation system of traction motor rolling bearing has the characteristics of friendly interface,easy operation and good reliability evaluation effect,and can be widely used in different fields.