摘要
采用传统方法解决多学科的设计问题时 ,因为无法定量考虑分布在多个学科内的产品指标对设计变量的影响 ,通常会产生频繁的设计返工 .该文通过收集产品各领域的指标约束与关系约束来构建基于约束网络的产品参数协调模型 ,采用区间描述设计变量的不确定性信息 ,并将区间算法与基因算法相结合实现了一致性模型求解框架 .使用该方法能够检测潜在冲突 ,得到与给定产品指标相对应的设计变量可行解空间 ,进而辅助设计人员决策 .最后以该方法在转向架设计中的应用实例说明其有效性 .
How to bridge the gap between all the disciplines and predict the potential conflicts in the early design stage is a key problem in multidisciplinary design. A method for coordinating the concurrent and collaborative relationships in multidisciplinary parameter design is discussed. This method collects the constraints on the product specifications and design variables to construct a formulated parameter coordination model based on constraint networks; uses interval boxes to describe parameters' uncertainties to enhance the design robustness; and a general consistency algorithm framework combining the interval arithmetic and genetic algorithm, which can deal with both algebra equations and ordinary differential equations, is put forward to refine the design parameter intervals. With the help of this method, designers can monitor the potential conflicts due to engineering changes, obtain the consistent solution space corresponding to the given specifications, and determine design variables in the solution space with their expertise finally. In the end, a bogie design instance is introduced to show the validity of this method.
出处
《计算机学报》
EI
CSCD
北大核心
2004年第1期115-120,共6页
Chinese Journal of Computers
基金
国家"八六三"高技术研究发展计划项目 (2 0 0 1AA411110 )
国家自然科学基金 (60 2 740 44 )资助
关键词
产品设计
多学科协同设计方法
参数协调模型
不确定性信息
Computer integrated manufacturing
Computer supported cooperative work
Concurrent engineering
Differential equations
Genetic algorithms
Rapid prototyping
Virtual reality
