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          華中科技大學學報(自然科學版) 2020, Vol. 48 Issue (12): 83-88 DOI10.13245/j.hust.201215

          欄目:船舶工程
          滑行艇參數化建模方法
          王建東 , 莊佳園 , 羅 靖 , 蘇玉民
          哈爾濱工程大學水下機器人國防科技重點實驗室,黑龍江 哈爾濱150001
          摘要 為實現滑行艇水動力優化設計過程中艇型的自動生成,提出一種曲線曲面自動生成的滑行艇參數化建模方法.以艇型關鍵特征點和型線角為設計基礎,基于均勻B樣條曲線和型線約束條件實現滑行艇龍骨線、弦線和舭緣線等關鍵型線的二維投影定義,采用等數弧長均分方式得到廣義型值點,并結合貝塞爾曲線插值得到滑行艇三維曲線,對相鄰三維曲線間進行B樣條曲線插值和坐標變換得到廣義站面.最后通過曲面放樣法得到均勻B樣條曲面片并對各站段進行插值,獲得完整的放樣曲面.利用該方法對帶有防濺條的尖舭型、細長型和休閑型滑行艇進行編程繪制,均得到完整光順的滑行艇曲面,證明了該設計方法的可行性.
          關鍵詞 參數化建模 ;滑行艇 ;B樣條曲線 ;廣義站面 ;插值 ;放樣曲面
          Parametric modeling method of planing hulls
          WANG Jiandong , ZHUANG Jiayuan , LUO Jing , SU Yumin
          National Key Laboratory of Science and Technology on Autonomous Underwater Vehicle, Harbin Engineering University,Harbin 150001,China
          Abstract To realize automatic generation of planing hulls in the hydrodynamic optimization design,the parametric modeling method towards planing hulls with automatic generation of curves and surfaces was proposed.Based on the key feature points and angles of hull line,the 2D projection definitions of keel line,sheer lines and cheer lines were realized by the uniform B-spline method and constraint conditions of the hull lines.Then the generalized hull value points were obtained by equal arc length bisection method and the 3D curves of model were obtained combining Bezier Curve interpolation.B-spline curves interpolation and coordinate transformation were performed between the adjacent 3D curves to acquire the station surface.The entire surface was obtained by interpolating the uniform B-spline surface acquired by surface lofting method into each station section.Using this method,three different planing hulls with spray rails were programmed and drawn,which shows the design method is feasible,and the smooth planing hull surface can be obtained.
          Keywords parametric modeling ; planing hulls ; B-spline curve ; generalized station surface ; interpolation ; lofting surface
          基金資助國家自然科學基金資助項目(51409054)

          中圖分類號U662.2
          文獻標志碼A
          文章編號1671-4512(2020)12-0083-06
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          文獻來源
          王建東, 莊佳園, 羅 靖, 蘇玉民. 滑行艇參數化建模方法[J]. 華中科技大學學報(自然科學版), 2020, 48(12): 83-88
          DOI:10.13245/j.hust.201215
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