| Space special vehicle is the basis of national defense strategy and tactical weapon.Its industry has high investment,high risk,high reliability and so on.The specialty of space special vehicle power is one of the most important fields in the technology industry of space special vehicle.The power products of special vehicles provide uninterruptible power supply for space special vehicles.The quality problems of power products will directly affect the success or failure of special vehicles.Therefore,the research of quality control of power products must be strengthened while the advanced technologies such as high energy and high efficiency are pursued.Because of the characteristics of high integration,high technology and wide technical cooperation.During this process,some external power supply products’ quality problems have been exposed,and the problems existing in the existing product quality management mechanism of the outsourcing units have been exposed.Therefore,this paper takes the A120 DC stabilized voltage power supply for the space special vehicle as an example,and analyzes the problems existing in the quality monitoring system of the aerospace outsourcing products in recent years,and puts forward a product quality monitoring system based on the product maturity from the point of view of the system engineering.First,analyze the quality problems of power supply products of aerospace special vehicles and the problems existing in the quality control of the current external power supply.According to the statistics and analysis of the quality problems of A120 DC regulated power supply by FEMA method and investigation and statistical method,the quality problem of the product quality is caused by the product quality management method.At present,the quality management method of the outsourcing products is short of the whole monitoring mechanism from the plan design,the product research and development,the material purchase,the production and the inspection.It is difficult to ensure the whole process of product quality control,and the products may have quality problems.Second,build the external quality monitoring system for aerospace specialvehicle power supply under the guidance of system engineering theory.In view of the existing problems,the technical maturity and the manufacturing maturity of the co unit are used as the evaluation method for the power quality of the special vehicle,by dividing the technology maturity level and manufacturing maturity level of the special vehicle power products,and using the rough set and information entropy recognition technology maturity factors and the manufacturing maturity.A method for evaluating the maturity of the power supply.In addition,through the construction of the effective communication mechanism between the outsourcing companies and the outgoing units,and the product production contract and the manufacturing schedule risk assessment,the co enterprises can effectively implement the quality control system and ensure the quality of the power supply.Third,implementation measures for the quality monitoring system of aerospace special vehicle power supply outsourcing products.This paper takes the manufacturing of A120 DC power supply as an example to evaluate the implementation effect of the quality control system.Through the real-time monitoring system,the production unit is more standardized,more specific and more operable,which provides a basis for product development personnel to quantify the quality of product parameters.Through the implementation of the quantitative control measures from the point and surface,the source of the quality problem has been prevented and eliminated,the quantity and quality cost of the quality problems have been greatly reduced,and the quality of the power products of the space special vehicles is ensured. |