中縱艙壁 的英文怎麼說
中文拼音 [zhōngzōngcāngbì]
中縱艙壁
英文
center line bulkhead-
Double girders of rule height and thickness lines up with the corrugated longitudinal bulkhead of cargo tanks at centre
規范要求高度和厚度的雙縱桁，與船中間貨艙內的非直線縱艙壁保持一致Abstract : fatigue cracks in ship hull structures are most likely to occur in the highly stressed structural details. the conventional fatigue analysis is largely dependent on the determination of stress concentration factors ( scfs ) at the locations considered. this paper is concerned with the stress concentration of cutout in transverse web for longitudinal stiffener. a series of finite element models is carried out for the stress analysis of predefined structural details. the tabulated scfs of typical cutouts ( abs tanker rules ) in transverse web for longitudinal stiffeners are presented based on the finite element analysis ( fea ) results
文摘:疲勞裂紋往往發生在船舶結構的局部高應力區，而疲勞分析結果通常取決于任何準確確定結構的應力集中系數.本文研究為鋪設縱骨而在艙壁板上開孔的應力集中，採用有限元方法對預先給定的結構進行應力分析，基於有限元計算結果給出了艙壁板典型開孔（參見abs油船規范）的應力集中系數表The submarine structure is simplified to single or double infinite cylindrical shell stiffened with rings, bulkheads and stringers, focusing on underwater sound radiation from the single shell. the shell motion is described by donnell ' s theory including excitation forces and reactions of rings, bulkheads, stringers and fluid, which leads to the fluid - structure coupling vibration equation. expressing displacements by velocities, applying modal expansion circumferentially and fourier transformation longitudinally result in the shell ' s modal equations of motion
殼體的運動方程採用較為簡單的donnell理論描述，運動方程中包括了激勵力、加筋結構（環肋、艙壁和縱骨）和流場對殼體的作用力，從而組成流場-結構的耦合振動方程，並進一步將方程中的位移用速度表示，然後沿軸線方向進行fourier變換，將速度和各項荷載沿圓周方向進行模態展開，得到了殼體振動的模態運動方程。
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