為了對工程結構的裝配施工過程進行仿真，設計實現了虛擬裝配引擎OpenWorld。本
文論述了該引擎采用的實體層次結構建模和模型支持系統，提出了將場景分為世界場景和獨立場景集合的渲染方式，并設計實現了一套可編輯的XML 動畫格式標簽。利用該引擎設計完成的虛擬裝配軟件對工程設備的裝配起到了成功的指導作用，減少了裝配過程中的誤操作。
關鍵詞：虛擬現實；虛擬裝配；OpenGL；三維引擎；動畫文件格式

Design of Realization of Animation On Virtual Assembly Engine of Engineering Structures Zhang Wei Yang XinHua Wei Shuang （Institute of Engineering Computing and Simulation, Huazhong University of Science and Technology, Wuhan 430074, China） Abstract: To simulate the assembly process of engineering structures, an assembly engine called OpenWorld is designed and realized. In this paper, the entity hierarchy modeling and model supporting system in this engine are discussed. A new rendering mode is put forward, which divides the whole scene into two parts: the world scene and isolated scenes, and a set of editable XML tags about animation are designed. The virtual assembly software using this engine can give a successful instruction on equipment assembly and reduce errors in the assembly process.
Key Words: Virtual Reality; Virtual Assembly; OpenGL; 3D Engine; Animation File Format