圓錐臺 的英文怎麼說
中文拼音 [yuánzhuītái]
圓錐臺
英文
cone frustum-
In this section, we also designed 2d subwavelength multilevel ( 2 -, 4 -, 8 -, etc. level ) columned stairstep grating with coned spatial profile to reduce reflection
我們也通過矢量衍射理論分析了多臺階二維亞波長具有圓錐面形的網格光柵的電磁場衍射特性。Under internal pressure, equilateral frustum shell tends to wrinkle at the equator, and the circular degree of the obtained vessel is poor
摘要等邊雙圓錐臺殼體在內壓的作用下，赤道環焊縫處易產生失穩起皺，且脹形后所得容器圓度較差。The sheet metal work pieces are first divided into several groups such as cylinder, cone and so on. then, under considering the intersection of two cylinders or a cone and a plane, the mathematical models have been developed, and the corresponding unfolding methods have been determined. on the platform of autocad, the system has been redeveloped by means of autolisp and activex object, and the unfolding cad system has been designed, which can realize the parametric drawing of the extension of sheet metal
結合工程實際對曲面構件進行了分類，並通過分析建立了包括圓柱、圓錐、圓柱與圓柱相貫、圓錐與平面相貫等曲面構件的數學模型，確定了適當的展開方法，以autocad2000為平臺，以autolisp結合activex對象為工具，進行二次開發，設計了曲面展開cad系統，從而實現鈑金件展開圖的參數化繪圖。Pointing to this problem, a numerical simulation was firstly carried out, and then some measures was taken to prevent the equator from wrinkling by slightly changing the shape of the frustum shell, as a result, the bulged vessel became more round
針對這一問題，對其脹形過程進行了有限元數值模擬，並通過改變圓錐臺的初始形狀，來保證容器的圓度和避免赤道處的失穩起皺。分享友人