水翼航行 的英文怎麼說
中文拼音 [shuǐyìhángháng]
水翼航行
英文
navigation on hydrofoils- 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
- 翼 : Ⅰ名詞1 （翅膀） the wing of a bird 2 （像翅膀的東西） the wing of an aeroplane etc : 鼻翼 wing of...
- 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
- 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
- 航行 : 1 （水中行駛） navigate by water; seaway; sail 2 （空中行駛） navigate by air; fly 3 voyage; 航行...
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The method of wing shape optimization of space shutlle has been developed with penalty function approach in which the objective function is the mass of the wing and the constraints are the hypersonic re - entry flight cross range, lift / drag ratio, and subsonic flight lift / drag ratio, the margin of the longitudial static stability and the magnitude of the horizontal landing speed etc
摘要介紹了在滿足高超音速再入橫向機動航程，高超音速再入飛行時的升阻比，亞音速進場飛行時的升阻比，縱向靜穩定性裕度和水平著陸速度等飛行性能設計要求下，用罰函數法尋求使航天飛機機翼質量為最小的外形優化方法並給出了算例。A lot of oil tanker failure was reported in recent years, which attracted much attention of navigation industry. after investigation and analysis, fatigue crack was suspected to be one of main causes. the fatigue cracks were discovered mostly on the side longitudinals at the connections to transverse bulkheads or transverse webs
近年來，世界上有大量的油輪在海上失事，這一現象引起了各國航運界的高度重視，通過組織力量對油輪失事原因進行調查分析，認為一個重要的原因是艙內肋骨與上下翼艙的連接處的疲勞強度不足，導致艙室進水，然後波紋橫艙壁破壞導致進水過多而沉沒。The vibration and sound radiation behaviors of the stem of submarine with rudder and vane are studied
摘要針對帶有舵翼的水下航行器尾部結構模型，研究舵翼對水下航行器尾部的振動及聲輻射的影響。
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