船中部吃水 的英文怎麼說
中文拼音 [chuánzhōngbùjíshuǐ]
船中部吃水
英文
draft at midlength-
The calculated drafts covers the whole possible ship draft in the large amplitude motion ; secondly, the research creates and solves the ship large amplitude motion equations. on the one hand, the actual calculation takes into account the coupling between the different motion modes, on the other hand, in the process of calculation of the ship hydrodynamic coefficient, it considers the influence of the nonlinear factor. the hydrodynamic coefficient used in the calculation of froude - krylov force, diffraction force and radiation force changes instantaneously following the draft, and the hydrostatic buoyancy is computed very accurately for the instantaneous immerse hull
本文的研究分為二個部分：首先利用frank源匯法計算水動力系數，計算包括不同吃水時的附加質量和阻尼系數，吃水范圍涵蓋了船舶大幅度運動時所有可能的吃水；然後建立和求解船舶大幅度運動方程，在實際計算時一方面考慮了運動模態之間的耦合，另一方面在計算水動力時，考慮了非線性因素的影響。 froude - krylov力、輻射力、繞射力中的水動力系數隨吃水瞬時變化，靜浮力的計算精確到船體瞬時濕表面積，最後用四階龍格?庫塔方法在時域內求解船舶運動方程，並進行了載荷計算。Since kamen and vagena, many researchers have discussed it in theory and experiment method. the main content in this paper is to set forth the slamming press calculations in dnv rules, gl rules and lr rules and the requirements for slamming strengthened bow structure and some comparisons ; slamming strengthened bow structure design for a bulk is carried out using dnv rules, and comparisons among several design schemes is carried through when heavy loading draft status replaces light loading draft status in practice. the results from above have been applied in ship production ; it is significant for ship structure improvement latter to calculate slamming press with direct calculation method, and then to design bow structure with dnv rules
本文的主要內容是分別闡述dnv 、 gl 、 lr三種規范對底部砰擊壓力計算及底部砰擊加強結構設計的一般要求並進行一些分析比較：用dnv規范對某型船（ 27000t散貨船）進行具體的底部砰擊加強結構設計，並就實際生產中產生的重載吃水狀態改輕載吃水狀態而出現的幾種設計方案進行比較，其具體結果現已用於實際生產；用直接計演算法確定砰擊壓力，再用dnv規范進行底部結構設計，對於後續船的改進均有指導意義。The yacht is built of steel hull, all - welded, transverse framing, the deckhouse is built of aluminum alloy welded, super - shallow draft, c w double decks, the upper layer is promenade deck and raised deck on aft engineroom, water jet propulsion, central air - conditioning
本艇主船體為橫骨架式鋼質焊接，甲板室為鋁合金焊接超淺吃水船型，具有雙甲板上層為游步甲板和艉部機艙升高甲板，噴水推進方式，集中空調系統。This vessel is a steel shallow draft flushing dredger of all - welded construction, with single deck, single bottom, transverse framing, transom stern and continuous superstructure, and sledge - shape bow. it is operating on the huanghe river for flushing and suctioning silt and sand with the purpose of controlling the huanghe river tongguan section, dredging the waterway and reducing the flooding. main engine : nt855 - m270
本船為鋼質全焊接結構淺吃水內河自航沖砂清淤工作船，具單甲板其中艉舵機艙首甲板為升高甲板，單底，橫骨架式結構，方艉及連續上層建築首部採用雪橇式線型。分享友人