本文選題：高斯映射　切入點(diǎn)：通用刀具　出處：《計(jì)算機(jī)輔助設(shè)計(jì)與圖形學(xué)學(xué)報(bào)》2015年07期

【摘要】：以針對(duì)數(shù)控加工仿真的需要,以高斯映射理論為基礎(chǔ)、GPU為主要硬件平臺(tái),提出一種基于并行計(jì)算的快速通用刀具空間掃描體建模方法.首先結(jié)合通用刀具的數(shù)學(xué)模型,利用高斯映射理論分析刀具平動(dòng)時(shí)的掃描體建模原理;然后分析刀具做任意空間運(yùn)動(dòng)時(shí)的刀具表面點(diǎn)法向量和對(duì)應(yīng)的接觸映射,推導(dǎo)求解掃描體包絡(luò)邊界的表達(dá)式;再根據(jù)GPU上的通用計(jì)算方法和GPU圖形繪制管線設(shè)計(jì)基于GPU實(shí)現(xiàn)刀具空間掃描體建模的算法流程,并利用C++、Open GL和Open GL著色語(yǔ)言GLSL實(shí)現(xiàn)了該方法.通過(guò)刀具掃描體建模實(shí)例,驗(yàn)證了文中方法的正確性與實(shí)時(shí)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.
【作者單位】： 東北大學(xué)機(jī)械工程與自動(dòng)化學(xué)院;
【分類號(hào)】：TH164

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本文編號(hào)：1662558