標稱層厚 的英文怎麼說
中文拼音 [biāochèncénghòu]
標稱層厚
英文
nominal tomographic slice thickness-
In upper level optimization, the thickness and geometry factors of composite skins and webs as well as other structural dimensions are taken as design variables. then, considering the behavior constraints and the side constraints, the structural mass is minimized by the mathematical programming technique. in lower level optimization, the mathematical programming technique or the genetic algorithm ( ga ) is used to search the practical stacking sequence of composite skins and webs to realize the given thickness and geometry factors from upper level optimization
底層優化設西北工業大學博士學位論文計以復合材料蒙皮和腹板等層合板各分層的厚度（或鋪層數） 、鋪層角和鋪層順序為設計變量，以層合板的幾何因子與頂層優化設計給出的最優幾何因子之間的誤差最小為目標，考慮層合板厚度和製造工藝性約束，採用數學規劃方法或遺傳演算法（ geneticalgorithm ，簡稱ga ）求出底層最優設計變量。The name and the code name of the pipeline, pipe material, o. d. and the thickness of pipe, transmitting medium and its temperature, insulator materital and its thickness, the orientation of the pipeline, hight of pipe center
管線名稱代號，管道材質、外徑和壁厚，輸送的介質及其溫度，絕熱層材質及厚度，支吊處管線走向，管中心（管底）標高。
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