在GPU上实现基于高斯映射的通用刀具扫描体建模

发布时间：2018-03-25 09:38

本文选题：高斯映射　切入点：通用刀具　出处：《计算机辅助设计与图形学学报》2015年07期

【摘要】：以针对数控加工仿真的需要,以高斯映射理论为基础、GPU为主要硬件平台,提出一种基于并行计算的快速通用刀具空间扫描体建模方法.首先结合通用刀具的数学模型,利用高斯映射理论分析刀具平动时的扫描体建模原理;然后分析刀具做任意空间运动时的刀具表面点法向量和对应的接触映射,推导求解扫描体包络边界的表达式;再根据GPU上的通用计算方法和GPU图形绘制管线设计基于GPU实现刀具空间扫描体建模的算法流程,并利用C++、Open GL和Open GL着色语言GLSL实现了该方法.通过刀具扫描体建模实例,验证了文中方法的正确性与实时性.
[Abstract]:In order to meet the needs of NC machining simulation and based on Gao Si's mapping theory as the main hardware platform, this paper presents a fast and general tool spatial scanning volume modeling method based on parallel computing. The principle of scanning volume modeling is analyzed by using Gao Si's mapping theory, then the normal vector of tool surface and the corresponding contact mapping are analyzed when the tool is moving in arbitrary space, and the expression for solving the envelope boundary of scanning volume is deduced. Then, according to the general calculation method on GPU and the design of GPU drawing pipeline, the algorithm flow of tool space scanning volume modeling based on GPU is realized, and the method is realized by using C # OpenGL and Open GL coloring language GLSL. The example of tool scanning volume modeling is given. The correctness and real-time of the proposed method are verified.
【作者单位】：东北大学机械工程与自动化学院;
【分类号】：TH164

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