沉浸式航空发动机视景系统的设计与实现

Research and Development of Immersive Aero-engine Scene Simulation System

航空发动机的研发具有精密度高、跨学科的特点,为减少沟通成本、直观展示发动机结构及半物理仿真机运行状态,应用虚拟现实技术,搭建了一套沉浸式视景仿真系统。通过研究CAD数据轻量化技术、基于物理的实时渲染技术,提出了一种相似对象动态合批的渲染优化方法,有效提高了渲染帧率;提出一种动态视差调整算法,解决了近距离观看立体画面时出现的眩晕问题。该系统实现了沉浸感强、流畅度高、精度高的视景效果,相关技术可应用于发动机沉浸式评审、虚拟培训等场景,为虚拟现实技术应用于制造领域提供技术支撑和参考。

The research and development of aero-engines has the characteristics of high precision and interdiscipline.In order to reduce communication costs and to display the engine structure and the state of semi-physical simulator,by applying virtual reality technology,an immersive scene simulation system is built.By studying CAD data lightweight technology and physics-based real-time rendering technology,a rendering optimization method for similar object dynamic batching is proposed,which effectively improves the rendering frame rate.A dynamic parallax adjustment algorithm is proposed to solve the problem of dizziness when having a close look to stereoscopic images.The system achieves the strong immersion,high fluency,and high precision visual effects.The relevant technology can be applied to the engine immersive review,virtual training and other scenarios,and can provide technical support and reference for the application of virtual reality technology in manufacturing field.