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首页> 外文会议>International Conference on Mechanical Engineering and Mechanics vol.2; 20051026-28; Nanjing(CN) >DADS: A Product Digital Assembly Design System
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DADS: A Product Digital Assembly Design System

机译：DADS：产品数字装配设计系统

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摘要

Assembly is an important stage in the process of product manufacturing, and effective assembly design tool can greatly improve the efficiency and quality of product assembly design. Digital assembly design system (DADS) developed in our work provides some assembly design tools for designers and engineers to preassemble product, analyse assemblability of product, and plan product assembly process. In this paper, the DADS system architecture and its main function are firstly introduced. Some key technologies, including digital assembly simulation environment, human-computer collaborative assembly sequences rapid planning, and assembly tolerance analysis, are then researched and implemented. Digital assembly simulation environment provides users with a 3D design environment. With the environment, designers and engineers can operate part or component to realize product assembly simulation. Different from traditional strategy of assembly planning, human-computer collaborative assembly sequences planning divides the assembly sequences planning process into two levels planning, which increases the speed and availability of assembly planning. Assembly tolerance analysis assists engineers checking the rationality of assembly tolerance distribution. Based on the above study, the DADS system has been applied effectively to a test case-universal transmission device. The three significant characteristics of DADS are as follows: (1) the simulation environment does not need the supporting by those expensive VR software and hardware, and the assembly model avoids the drawbacks of CAD system assembly model. (2) Assembly sequences planning tool is suitable for complex product since more experience and knowledge of specialists are used fully in it by interactive operation. (3) As a prototype, DADS system has been integrated with CAD system by PDM to share geometry and non-geometry information of product.
机译：组装是产品制造过程中的重要阶段，有效的组装设计工具可以大大提高产品组装设计的效率和质量。我们工作中开发的数字组装设计系统（DADS）为设计师和工程师提供了一些组装设计工具，以供他们预组装产品，分析产品的可组装性以及计划产品组装过程。本文首先介绍了DADS系统的体系结构及其主要功能。然后研究并实现了一些关键技术，包括数字装配仿真环境，人机协作装配序列快速计划以及装配公差分析。数字装配仿真环境为用户提供了3D设计环境。在这种环境下，设计人员和工程师可以操作零件或组件以实现产品装配仿真。与传统的装配计划策略不同，人机协作装配顺序计划将装配顺序计划过程分为两个级别的计划，从而提高了装配计划的速度和可用性。装配公差分析可帮助工程师检查装配公差分布的合理性。基于以上研究，DADS系统已有效地应用于测试用例通用传输设备。 DADS的三个重要特征如下：（1）仿真环境不需要那些昂贵的VR软件和硬件的支持，并且装配模型避免了CAD系统装配模型的弊端。 （2）装配顺序计划工具适用于复杂产品，因为通过交互式操作可以充分利用专家的更多经验和知识。 （3）作为原型，DADS系统已通过PDM与CAD系统集成在一起，以共享产品的几何和非几何信息。

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