多因素驱动的复杂产品设计变更传播集成决策理论和方法研究

项目名称： 多因素驱动的复杂产品设计变更传播集成决策理论和方法研究

项目编号： No.51475416

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 机械、仪表工业

项目作者： 李玉良

作者单位： 东华大学

项目金额： 83万元

中文摘要： 设计变更在产品开发中占有重要地位。多因素引起的初始或突发型设计变更经复杂产品开发过程中存在的层次及与或关联关系传播，可对产品开发进程产生重大影响，因而从多条变更传播路径中选择满足用户功能和性能要求且对产品开发过程影响最小的最优传播路线具有重要研究价值。课题采用有向与或图建立描述设计变更传播过程的网络化层次模型，采用宽度优先、设计任务回溯和资源状态实时更新的方法对多因素引起的变更传播过程进行仿真，以（条件）蒙特卡罗采样方法分析各单因素及其交互作用对变更传播过程的全局灵敏度，以有向图的最短路径算法并结合试验设计方法分析每条变更传播路径的局部灵敏度，以稳态遗传算法为基础开发仿真-（灵敏度）分析-优化一体化框架，在申请者已构建的基于进程的产品集成设计平台上实现资源约束下的变更传播仿真及优化调度算法，以6缸涡轮增压发动机、主战坦克等复杂产品的开发进程为对象对本课题的理论和方法进行应用验证。

中文关键词： 集成决策理论；设计变更传播；灵敏度分析；多因素；仿真分析

英文摘要： Design changes play an important role in the product development process. The initial and emergent design changes caused by multi factors can generate significant impacts on the product development process when they propagate through the And/Or logic relationships in the hierarchical process networks, therefore, selection of the optimal change propagagation paths from many available change evolution routes is valuable for enterprises in order to satisfy the performance and functional requirements of customers with the minimum cost. This project adopts And/Or digraphs to build the multi-level change propagation networks, then simulates the change propagations by using width-first traverse, design task backtrack and timely resource state update approach. (Conditional) Monte Carlo sampling method is used to analyze the global sensitivity of design process with respect to each change and their interaction effects, and the shortest paths algorithm of digraphs combined with design of experiment analysis method is used to analyze the local sensitivity of design process with respect to the change in a design task. The steady state genetic algorithm is taken to develop the simulation-(sensitivity) analysis-optimization framework for resource constrained change propagations based on the available process centered product integrated design platform. The development processes of 6-valve turbo-charged engine and track based main battle tank are used to testify the theory and methodologies developed in this project.

英文关键词： Integrated Decision-Making Theory;Design Change Propagation;Sensitivity Analysis;Multi-Factotr;Simulation based Analysis