装配模型的结构体现了自项向下的设计理念，实现了装配树层次信息、配合信息和零件信息的分别管理。
The model embodied the top-down design idea, achieved the respective management of assembly architecture information, mate information and parts information.
它可有效支持自顶向下的并行产品设计以及与主模型相关的可制造性设计和可装配性设计，以缩短产品开发周期。
It not only effectively supports the top-down combine product design but manufacturing design and assembling design related to main model as well so as to shorten the period of product development.
虚拟装配是虚拟制造的关键技术之一，它能有效支持自顶向下的并行产品设计以及与主模型相关的可制造性设计和可装配性设计，以缩短产品开发的周期。
As well as the manufacturing possibility design and assembling possibility design correlated with the master model, which will greatly reduce the products research and development period.
根据功能设计的思想，采用自顶向下模式，给出一个并行协同环境下注塑模具装配设计系统的框架，对功能至产品演化过程中的数据模型进行了分析。
Based on the idea of function design, an architecture of the assembly design system for injection mould in concurrent and collaborative environment was presented using top down pattern.
建立了一个表面自由能计算模型，实现对基于毛细管力流体自装配系统表面自由能的计算。
The fluidic self-assembly system using the capillary forces is probed into in my thesie finally. A purely geometric model is built to calculate the difference in surface free energy.
建立了一种计算模型 ，用于计算基于毛细管力流体自装配系统表面自由能。
The water content of attraction and capillary decreased with the increase of the matrix suction, which consisted of attraction and capillary powers.
着重研究了建模技术和自顶向下的设计方法，并将它们和装配模型有机的结合起来，建立基于特征的自顶向下建模系统。
The main work is stated as follow:(1) After researching the technology of modeling and the method of Top-down design, the thesis designs a feature-based modeling with Top-down design.
建立了一种计算模型，用于计算基于毛细管力流体自装配系统表面自由能。
A purely geometric model is built to calculate the difference in surface free energy of fluidic self-assembly system using the capillary forces.
建立了一种计算模型，用于计算基于毛细管力流体自装配系统表面自由能。
A purely geometric model is built to calculate the difference in surface free energy of fluidic self-assembly system using the capillary forces.
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