基于多实体的混合设计方法应用研究

Application of Middle-out Design Based on Multi-Body Method

目前通常有两种可用的设计方法:自顶向下和自底向上。骨架式自顶向下设计得到了广泛的研究,但过于抽象不易于掌握,且忽略现有资源的应用及零部件间的位置及特征对关联零部件设计的作用;另外自底向上设计脱离设计布局,设计效率低下。为解决两种设计存在的问题,提出了基于三维多实体的模块化混合设计法。首先根据不同产品的结构特点,划分了三维多实体布局类型,并简要介绍了布局方法。然后结合各种情况详细地阐述了混合设计中最重要的参数关联问题,其中重点探讨了如何将设计加速器的设计结果嵌入到智能布局零件中,以此实现末端需求控制前端设计的反求设计思想。最后结合典型设计案例阐述了混合设计法的应用,表明混合设计法是可行且有效的。

Generally,there are two alternative design approaches:top-down and bottom-up.At present,the skeleton top-down design has been widely studied,but it is too abstract and not easy to grasp,and meanwhile often ignores the application of existing resources and the role of the location and features of the parts in the design of related parts.In addition,the bottom-up design is detached from the design layout,resulting in low efficiency.To solve the problems,a modular middle-out design method based on 3D multi-body is proposed.Firstly,in accordance with structure characteristics of different kinds of products,types of multi-body layouts are described,and layout approaches are introduced briefly.Then,the most important issue of parameter correlation in middle-out design is discussed in detail,and subsequently the problem of how to embed the design results generated by the design accelerator into the smart layout part is explored,so the reverse design idea is realized as the terminal design requirements control the front-end design.Consequently,the correlation between dynamic characteristics and structure as well as parameters is created effectively.Finally,combined with the typical design case,the application of middle-out design method is illustrated.The result shows that the middle-out modeling approach is feasible and effective.