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

摘要： 复杂装备研制是提升装备制造业水平,增强产业核心竞争力的重要手段和途径。然而复杂装备研制是一个复杂的系统工程,期间涉及到众多流程和不同研制水平的供应商,以至于在研制过程中常常产生进度延期问题。为有效处理此类问题,考虑到研制成本、质量是影响研制进度的重要因素,以识别关键供应商和调整研制计划为控制方式,利用图示评审技术和多目标控制方法,构建了考虑成本与质量价值的复杂装备研制进度控制方法。首先,利用GERT构建了复杂装备研制主体关系网络,并利用其识别研制网络中的关键供应商;进而从研制时间最短、成本最小化、质量价值最大化角度,构建了复杂装备研制进度控制模型;最后,以案例证明了模型的有效性与合理性。

关键词: 复杂装备, 成本, 质量价值, 研制时间, 进度控制