基于虚拟技术的汽车发动机装配平台的设计

发布时间：2018-05-31 16:28

本文选题：虚拟技术 + 碰撞检测　；参考：《天津职业技术师范大学》2017年硕士论文

【摘要】：随着计算机仿真技术、传感器技术、人工智能等技术的发展和日益成熟,虚拟技术在军事航天、医学、娱乐、室内设计、工业仿真、文物古迹、轨道交通等领域都有了进一步的应用。尤其是在一些危险的、体量比较庞大的、使用和维护成本高的、反复操作的一些领域,虚拟现实具有很大的应用空间。一些企业和科研机构纷纷投入研究,出现了诸如虚拟装配、虚拟维修、虚拟驾驶、虚拟车辆仿真系统、虚拟医学等研究领域,依靠其逼真的质感、可交互的便捷性,逐渐被广泛使用。汽车发动机装配符合虚拟技术的上述特点,结合人机交互设计、三维建模技术、程序设计、汽车发动机装配理论等知识,最终设计并实现了“基于虚拟技术的汽车发动机装配平台的设计”。本文完成主要工作及结论如下:(1)完成对发动机虚拟装配平台构建需求分析。对发动机理论课程在职业院校、培训机构、研发公司的需求进行分析,归纳出装配平台的所能实现的基本功能。分析虚拟装配平台的开发环境需求、时效需求和精细度需求,确保虚拟装配平台运行的高效性、真实性和实用性,最后完成系统平台的总体设计。(2)基于3d Max提出发动机虚拟装配平台的建模方法。发动机所有零部件模型、故障检修工具模型的大小形状复杂度各不相同,根据模型各自特点采用几何建模方法、基于图像的建模方法以及混合建模方法来完成模型的重建。(3)基于Unity引擎设计虚拟装配平台的实现功能。通过iTween.path来创建装配场景中发动机结构拆装演示路线,碰撞检测技术创建场景中的手动拆装交互,数据库记录拆装步骤创建考核评分系统,完成平台的功能展示。通过上述技术理论的结合,构建了视觉实时渲染和逼真的发动机装配模拟平台,该平台解决了传统实训场地受限、设备资金有限、设备磨损严重等问题,其研究结果对于职业院校理实一体化汽车发动机构造原理的理论学习具有重要的实际意义,并且对于用户自学、公司培训也具有一定的应用价值。
[Abstract]:With the development and maturity of computer simulation technology, sensor technology, artificial intelligence technology, virtual technology in military aerospace, medicine, entertainment, interior design, industrial simulation, cultural relics, Rail transit and other fields have been further applied. Especially in some dangerous, large volume, use and maintenance of high cost, repeated operation in some areas, virtual reality has a very large application space. Some enterprises and scientific research institutions have put into research, such as virtual assembly, virtual maintenance, virtual driving, virtual vehicle simulation system, virtual medicine and other research fields, relying on its lifelike texture, interactive convenience, etc. Be widely used gradually. Automobile engine assembly accords with the above characteristics of virtual technology, combined with the knowledge of human-computer interaction design, three-dimensional modeling technology, program design, automobile engine assembly theory, etc. Finally, the design of automobile engine assembly platform based on virtual technology is designed and realized. The main work and conclusion are as follows: 1) the requirement analysis of engine virtual assembly platform is completed. The requirements of engine theory courses in vocational colleges, training institutions and R & D companies are analyzed, and the basic functions of the assembly platform are summarized. In order to ensure the efficiency, authenticity and practicability of virtual assembly platform, the requirements of development environment, aging and fineness of virtual assembly platform are analyzed. Finally, the overall design of the system platform is completed. (2) based on 3D Max, the modeling method of engine virtual assembly platform is presented. The size and shape complexity of all engine parts model and troubleshooting tool model are different. According to the characteristics of each model, the geometric modeling method is adopted. Based on image modeling method and hybrid modeling method to complete the model reconstruction. 3) based on the Unity engine to design the virtual assembly platform. The demonstration route of engine structure disassembly and assembly in assembly scene is created by iTween.path, the manual disassembly and assembly interaction is created by collision detection technology, and the examination and scoring system is created by recording the disassembly steps in database, and the function display of the platform is completed. Through the combination of the above technology and theory, a visual real-time rendering and lifelike engine assembly simulation platform is constructed. The platform solves the problems of limited training site, limited equipment funds, serious equipment wear and so on. The research results are of great practical significance to the theoretical study of the construction principle of the automobile engine in vocational colleges and universities, and also have certain application value to the self-study of the users and the training of the company.
【学位授予单位】：天津职业技术师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U468.2;TP391.9

【参考文献】