机械产品布局设计的约束

基于自上而下的设计思想 ,将机械产品设计中的布局约束按照属性信息、行为信息和形位信息分类。提出将布局约束分为部件级、零件级和特征级以及由整体到局部进行分层表达的思想 ,探讨约束层次、类及它们之间的相互联系

Constraints for mechanical product layout design

Following the top-down design method, the information of mechanical product is exchanged into constraints to describe the function and the structure of the product for the layout design. In term of the attributes information and behavior information and layout information of the product, the constraints are sorted into three classes and an idea of hierarchy of representation of constraints of product is presented that constraints are hierarchically divided into assembly level and part level and feature level. The relationships between the classes and the levels are discussed.