基于虚拟现实建模语言的某抢险工程机械运动仿真

Motion Simulation of a Rescue Engineering Machinery Based on VRML

为保证某抢险工程机械产品设计试制的合理性,缩短开发周期并实现异地协同设计及评估,讨论基于虚拟现实建模语言的运动仿真模拟技术。通过设置数据分层和DOF节点优化了整机三维模型,通过对产品运动轨迹的分析及简化得出相应的运动方程,开发了独立于CAD软件的运动仿真平台,保证仿真运行的真实性、实时性和通用性。平台最终仿真效果接近样机实际运行状态,应用结果对整机的设计优化和操作训练具有较高的理论意义和实际应用价值。

In order to ensure the rationality of a rescue engineering machinery product at the trial-manufacture stage, shortening the development cycle and realize design and evaluation in different places is discussed, which motion simulation technology based on virtual reality modeling language. The whole three-dimensional model is optimized by setting data hierarchy and DOF node. The corresponding equations of motion are obtained by analyzing and simplifying the product＇s trajectories. The simulation platform which is independent from CAD software is developed in order to ensure the factuality, real-time and generality of the simulation. The final simulation results are close to the actual running state. The application results are of great theoretical significance and applicable value to the optimization and training of the machine.