發(fā)布時(shí)間：2018-05-20 02:34

  本文選題：激光技術(shù) + 幾何建模　； 參考：《激光與光電子學(xué)進(jìn)展》2017年09期

【摘要】：提出了一種激光拼焊焊縫截面輪廓的幾何建模方法,基于Laws紋理濾波和數(shù)學(xué)形態(tài)學(xué)閉運(yùn)算提取了截面的輪廓邊緣,分別采用多項(xiàng)式函數(shù)模型、指數(shù)函數(shù)模型、高斯函數(shù)模型對(duì)提取的截面輪廓邊緣進(jìn)行了曲線擬合,并對(duì)擬合結(jié)果進(jìn)行了誤差分析。分析結(jié)果表明,基于指數(shù)函數(shù)模型擬合的焊縫截面輪廓上邊緣的精度最高,基于高斯函數(shù)模型擬合的焊縫截面輪廓下邊緣的精度最高。對(duì)不同工藝參數(shù)條件下獲得的激光拼焊焊縫截面輪廓邊緣進(jìn)行了幾何建模實(shí)驗(yàn),實(shí)驗(yàn)結(jié)果表明,提出的方法可以有效地實(shí)現(xiàn)激光拼焊焊縫截面輪廓的幾何建模。
[Abstract]:In this paper, a geometric modeling method of the section profile of laser TWW is proposed. The contour edge of the section is extracted based on Laws texture filtering and mathematical morphology closed operation. The polynomial function model and exponential function model are used respectively. The Gao Si function model is used to fit the edge of the section contour, and the error of the fitting result is analyzed. The results show that the precision of the upper edge of the weld section profile is the highest based on exponential function model, and that of the bottom edge of the weld section profile based on the Gao Si function model is the highest. The geometric modeling experiment on the profile edge of laser welding seam section obtained under different technological parameters is carried out. The experimental results show that the proposed method can effectively realize the geometric modeling of laser welding seam section profile.
【作者單位】： 沈陽建筑大學(xué)機(jī)械工程學(xué)院;高檔石材數(shù)控加工裝備與技術(shù)國家地方聯(lián)合工程實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金(51405481) 遼寧省教育廳科研項(xiàng)目(LJZ2016016) 江蘇省產(chǎn)學(xué)研合作項(xiàng)目(BY2015063-01) 沈陽建筑大學(xué)學(xué)科涵育計(jì)劃(XKHY2-32)
【分類號(hào)】：TG456.7;TN249
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本文編號(hào)：1912831