基于Vortex与Vega Prime的车辆模拟器动力学与视景仿真  

Dynamic and Visual Simulation of Vehicle Driving Simulator Based on Vortex and Vega Prime

作　　者：罗竹辉[1] 周晓军[1] 魏燕定[1] 

机构地区：[1]浙江大学流体动力与机电系统国家重点实验室,杭州310027

出　　处：《振动．测试与诊断》2014年第4期709-713,780,共5页Journal of Vibration,Measurement & Diagnosis

摘　　要：由于Vortex软件在车辆驾驶模拟器动力学与视景仿真中存在虚拟路面离散化程度与建模难度、视景图像渲染速率之间的矛盾,提出了联合Vortex和Vega Prime进行车辆驾驶模拟器动力学与视景仿真方法。建立了同一路面、不同离散程度的三维模型以供Vortex和Vega Prime分别调用,Vortex进行车辆动力学实时解算,Vega Prime进行视景图像特效渲染,利用HLA实现Vortex和Vega Prime仿真例程的同步和数据交互。仿真结果表明,该方法在提高路面离散化程度的同时,不影响场景建模难度和图像的渲染速率,满足实时性和交互性的要求,能较好地完成车辆驾驶模拟器动力学与视景仿真。The driving simulator plays a key role in vehicle and traffic engineering.Vortex offers many advantages in the dynamic and visual simulation of vehicle driving simulators.However,the contradiction between the grade of virtual road discretion and the difficulty of modeling and scene rendering speed prevents its application.A new method of dynamic and visual simulation of a vehicle driving simulator combining Vortex and Vega Prime is presented.HLA(high level architecture)is adopted to realize synchronization and data communication between Vortex and Vega Prime.Vortex carries vehicle multi-body dynamic resolving,while Vega Prime is in charge of image rendering.Different resolutions of 3-D models of the same scene of the virtual proving ground are modeled for Vortex and Vega Prime,respectively.The test results reveal that the road surface disturbance can be accurately simulated,the simulation results are more accurate,the interaction between human and computer is more convenient,and the scene rendering speed is faster,which satisfies real-time interaction.

关 键 词：车辆驾驶模拟器 动力学 视景 VORTEX VEGA PRIME 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]