A Process Simulation-Based Method for Engineering Change Management

基于过程仿真的工程变更管理方法

Engineering change management is a special form of problem solving where many rules must be followed to satisfy the requirements of product changes.As engineering change has great influence on the cycle and the cost of product development,it is necessary to anticipate design changes(DCs)in advance and estimate the influence effectively.A process simulation-based method for engineering change management is proposed incorporating multiple assessment parameters.First,the change propagation model is established,which includes the formulation of change propagation influence,assessment score of DC solution.Then the optimization process of DC solution is introduced based on ant colony optimization(ACO),and an optimization algorithm is detailed to acquire the optimal DC solution automatically.Finally,a case study of belt conveyor platform is implemented to validate the proposed method.The results show that changed requirement of product can be satisfied by multiple DC solutions and the optimal one can be acquired according to the unique characteristics of each solution.

工程变更管理是解决产品设计问题的一种特殊形式,必须遵循许多规则才能满足产品变更的要求。由于工程变更对产品开发周期、成本有很大的影响,因此有必要提前预测设计变更并对其影响进行有效的评估。本文提出一种融合多评价参数过程仿真的工程变更管理方法。首先,建立了变更传播模型,包括变更传播影响的数学模型、设计变更方案的的评价得分;然后介绍了基于蚁群算法的变更方案优化过程,并给出了一种自动获取最优变更方案的优化算法;最后,以带式输送机平台为例验证了该方法的有效性。结果表明,产品的变化需求可以由多个候选变更方案满足,并可根据方案的特性获得最优的结果。