基于VRML的机械传动机构的运动仿真

Motion Simulation of Mechanical Transmisson Framework based on VRML

针对专业仿真软件模拟机械传动机构难以脱离软件平台,或脱离软件平台与用户没有交互性的缺点,提出用VRML和VRMLScript模拟机构传动的一种方法。以牛头刨床的曲柄滑块机构为例,用AutoCAD和3dsMAX软件构造传动机构构件模型;将机构构件分组,在每一组建立构件之间的父子关系;以构件连接点的轴为研究对象,将复杂的机构运动变为单纯的一系列构件的轴的旋转运动,只需知道构件运动过程中绕轴旋转的角度参数,可用VRML和VRMLScript语言编程控制构件运动从而模拟传动机构的运动。此方法对大多数传动机构的模拟具有很大的借鉴意义。

When special emulational software simulating the motion of mechanical transmission framework, the results can＇ t break away from the software environment or even if away from the software environment it can＇ t interact with users o Aiming to the deficiency, A way of Motion Simulation of Mechanical Transmisson Framework based on VRML and VRMLScript is put forwordoln this paper a example of shaper＇ s crank - slider mechanism is given, First the virtual model of the mechanism＇s components is sculpted with the software of AutoCAD and 3dsMAX, the components of the Mechanism are grouped,and the father - son relationship between components is built in every group ,then the axis of the components＇ joint is studied, the complicated motion of the mechanism can be thinked as a series of simple revolving motions of the components＇ axises, only to know the revolving angle of each component around its axis, the motion of components can be controlled with VRML and VRMLscript language and so the motion of mechanism is simulatedoThis way is very useful for simulating most Mechanical Transmisson Frameworks.