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为提高飞机自动化装配设备的产能分析及预测准确度,提出了一种基于动态混合威布尔分布模型的飞机自动化装配设备有效工时解算方法。根据飞机装配过程特性,建立自动化装配设备可用度的动态混合三参数威布尔模型;分析了自动化装配设备各类子系统对设备总体可用度的影响度,计算了子系统可用度的动态权重;对设备可用度的混合威布尔模型进行了参数估计,求解设备可用度后计算设备的有效工时。以某型飞机机翼壁板装配站内的自动钻铆设备为实例,验证了方法的有效性。
In order to improve the productivity analysis and prediction accuracy of aircraft automatic assembly equipment, an effective working time solution method of aircraft automatic assembly equipment based on dynamic mixed Weibull distribution model is proposed. According to the characteristics of aircraft assembly process, a dynamic mixed three-parameter Weibull model is established to analyze the availability of automated assembly equipment. The influence of various sub-systems of automation assembly equipment on the overall availability of equipment is analyzed and the dynamic weight of subsystem availability is calculated. The mixed Weibull model of equipment availability is used to estimate the parameters, and the effective working hours of equipment are calculated after the availability of equipment is obtained. The automatic drilling and riveting equipment in an aircraft wing panel assembly station is taken as an example to verify the effectiveness of the method.