長周期船 的英文怎麼說
中文拼音 [zhǎngzhōuqīchuán]
長周期船
英文
long period vessel-
Based on the urgent need that pier protective device primarily designed needed to be tested its crashworthiness by the impact of ship in multi - situation, etc in multi - angle and multi - water, the writer analyzed the critical elements that affect the simulation of the collision between ship and pier protective device, and found the feasible way to deal with the conflict between calculation efficiency and precision. using this method and employing ansys / ls - dyna program, which is the universal nonlinear dynamic analysis software, a head - on collision between ship and pier protective device designed for guanzhou river bridge is simulated and presented, the simulation of time history course of full - scale mini - collision between ship and pier protective device was taken into reality with a spot of elements ( less than 21000 ) and scanty time ( 9 hours on p4 pc )
本文在前人研究的基礎之上，結合船橋碰撞實例，對碰撞計算機模擬模擬的關鍵技術進行了研究，在效率與精度的矛盾中找到平衡，對一艘2000噸級散貨船橫橋向正撞廣東管洲河大橋橋墩防撞鋼套箱這一種工況進行了計算機模擬模擬，實現了以較小的單元和較短的時間模擬碰撞的時間歷程，模擬滿足工程精度要求，解決了目前碰撞模擬計算周期太長的問題，同時模擬模擬得到的結論對該類防撞裝置提供了有價值的參考。The article analyzes the frame time planning of shipbuilding system, introduces the concept of flexible plan, realizing channels, and also the establishing principle and methods of long - term planning, middle - term planning, center planning, monthly plan, weekly planning, and daily planning under center production model
本文分析了船舶建造系統時限計劃，以及柔性計劃的概念和實現的途徑。在中心製造船模式下長期計劃、中期計劃、月計劃、周計劃和日計劃等建立的原則和方法。The quality of shaft alignment, is of vital importance in ensuring the long term appropriate running of shafting system and shortening the construction period of shipbuilding, also crucial in keeping the sailing vessel in the set course
船舶軸系校中的質量，對于確保軸系長期正常地運轉和縮短船舶修造周期都非常重要，也是船舶正常航行的關鍵。The variation of wave - induced nearshore current fields and long period oscillation of water surface result in sediment transport, resonance of harbors, ship failures, diffusion of pollutants and difficult sea rescues, drawing scientific researchers " concern
由波浪產生的近岸流場的變化和水面的長周期振蕩，導致泥沙遷移，港口共振，船舶失事，污染擴散，海上救生困難，這些都已經引起了科研工作者的廣泛重視。This, on the one hand, greatly obstructs the automation, and on the other, makes it very hard for the green hand to master. as a result, the technique is now meeting with the problem of handing down. the key to the problem is to quantify in a pragmatic way the effect that different factors have on plate shaping
隨著科技的發展，由於水火彎板加工的經驗性及手工操作，使得外板彎曲成形加工成為影響船體建造周期與實現自動化的瓶頸；而且隨著老工人的退休，而青年工人掌握這項工藝又需相當長的時間，導致水火彎板技術青黃不接的現象日趨嚴重。In a ship design, one of the key subjects is to investigate the effect of varying the main shipform factors on its drag. in view of that traditional model tests are rather costy and time - consuming, many researchers have been attempting to make, theoretically, numerical analysis with computer
對于船型設計而言，關鍵問題是研究船型要素及其改變對于阻力產生的影響，由於通過傳統的水池實驗方式存在費用高，周期長等問題，許多研究人員正在研究利用計算機通過數值分析方法進行分析。The traditional design method of propellers is calculating the surface of propeller from table of offsets, which is low - precision and time - consuming. the dynamic flow performance could n ' t be forecasted by this method
傳統攪拌槳設計都仿照船用推進螺旋槳的圖譜設計法，查表計算，精度低、周期長，且無法預測槳的流體動力性能。分享友人