关键词: 复杂装备, 成本, 质量价值, 研制时间, 进度控制

Abstract: The development of complex equipment is an important means and approach to enhance the level of equipment manufacturing industry and core competitiveness of the industry. It is a complex system engineering, often using the main manufacturer and supplier development mode. In this mode, the main manufacturer, due to its advantages in resources, information, and other aspects, can coordinate specific development activities, while the supplier is in a subordinate position and invests a certain amount of time, cost, and other factors in cooperating with the main manufacturer in collaborative development. Due to the involvement in numerous processes and suppliers with different levels of development during the development process, schedule delays often arise. This is because the development entity expects to reap higher benefits and value with lower time and cost, and there is a conflicting relationship between different development goals. To effectively address the issue of schedule delay, considering that development cost and quality are important factors affecting development progress, we construct a complex equipment development schedule control method that considers cost and quality value, using graphical review technology and multi-objective control methods to identify key suppliers and adjust development plans as control methods.
Firstly, we analyze the key activities and the relationships between activity entities in the development process of complex equipment based on milestone events, and construct a multi-parameter transmission development network with key production transmission activities involving multiple entities such as the main manufacturer, supplier, and customer as nodes. We explore the relationship among development time, cost, and quality value, identify key suppliers in the development network, and solve it using a matrix equation. Secondly, considering the stability of completion, with on-time delivery rate and investment amount as constraints, we construct a complex equipment development progress control model from the perspectives of minimizing development time and cost, and maximizing quality value. Finally, taking the development progress of aviation engine sensors as an example, we use the constructed model to analyze and solve the optimal solution for controlling the development progress of aviation engine sensors, and draw a Pareto frontier diagram of time, cost and quality value.
The results indicate that the constructed model fully considers cost, quality value, and time factors. By investing in key suppliers with weak quality value, a relative balance of time, cost and quality value under multi-objective control curves can be achieved, so as to solve the problem of complex equipment development schedule delay. In addition, the development time of complex equipment is negatively correlated with cost and quality value, while cost and quality value are also negatively correlated.
Although the constructed model can solve the problem of complex equipment development progress control to a certain extent, there are also some shortcomings. Future research directions can integrate factors such as risk and customer satisfaction into the impact of time, cost and quality value on the development network. Based on the requirements of decision-makers and customers, we can further construct a development progress model to provide theoretical support and methodological guidance for decision-makers in complex equipment development.

Key words: complex equipment, cost, quality value, development time, schedule control