复杂产品数字样机开发的关键技术

Key Technology for Digital Mock-up Research and Development of Complex Product

为研究复杂产品数字样机开发中的关键技术,本文以航空发动机为例,对其数字样机的建模、装配和关联设计方法进行了分析。首先,基于CAD软件,建立了航空发动机零部件三维模型;其次,对上述零部件进行了子装配与整机装配,并对其过程中的轻量化模型、约束关系和干涉检查等问题进行了研究;最后,通过WAVE技术,实现整体叶盘的关联参数设计,使数字样机最优地取代物理样机,推进了高质、高效、低成本的产品设计和制造技术的发展。

In order to study the key technology involved in the digital mock-up research and development of complex products, aeroengine is taken as example to analyze the methods of modeling parts, assembly and associated design in the digital prototype. Firstly, 3D models of aeroengine parts are established through the CAD software. Then, for the purpose of studying the lightweight, constrains, interference and other problems occurred in the assembly process, the sub-assemblies and full assembly of the engine prototype are conducted based on those 3D models. Finally, by means of utilizing WAVE technology,the associated parametric design of the blisk is achieved.By replacing the physical prototype with the digital mockup,it promotes the design and manufacturing development of high-quality, high-effi ciency and low-cost products.