offshore flow 中文意思是什麼
offshore flow
解釋
濱外流-
With the development of coastal and offshore engineering, the local scour problems are paid more and more attention. however scour in the vicinity of large scale structures founded on seabed have caused destruction to the foundations since the problems have n ' t been studied extensively. based on the principles of local scour around seabed founded large diameter cylinders caused by both waves and currents, the flow and scour processes are investigated in this paper after summarizing and consulting lots of papers and researches existing currently
隨著近海及海岸工程的不斷發展，近海及海岸工程建築物基底附近的局部沖刷問題也逐漸引起關注、重視與研究，但是對波流共同作用下海床上直立大直徑圓柱建築物周圍的局部沖刷研究較少，因而使得坐落在海床上大尺度建築物基底常常受到沖刷而致使基礎受到破壞。 -
Abstract : in this paper, the mathematics model, program flow - chat anddevelopment environment of the anchor chains adjusting software in offshore mooring are presented
文摘:闡述海上單點系泊錨鏈調整軟體的計算數學模型、程序流程、編程語言和環境等開發過程，並以涸洲單點系泊系統項目為例進行分析。 -
A nonlinear numerical model for wave transformation is established in time domain based on integral equation transformed from two dimensional laplace equation. then the model is applied to compute the linear wave and nonlinear wave deformation in offshore flow field. a new 0 - 1 combined bem ( boundary element method ) is adopted in this thesis to avoid computational errors accumulated with time steps
本文以波動勢函數的laplace方程的green積分轉換得到的邊界積分方程為基本控制方程，建立了一種新的時域內波浪變形計算的數值模型，籍此對非線性波浪在結構物周圍的波浪形態進行了數值模擬，並通過數值造波水槽內的波浪試驗對數值模擬結果進行檢驗。 -
Wave off into shallow waters, seabed by the friction effect change steep wave front, trough ice, water points trajectory showed reciprocating flow, but also to the shore into the flow speed usually return rate greater than offshore, the net result of sediment at the bottom to the shore handling, and was the shock waves on the shore with the water current - riviera online accumulation
外海波浪傳入近岸淺水區，受到海底的摩擦作用，波鋒變陡、波谷變緩，水質點運動軌跡呈現往復流動，而且向岸進流速度通常大於離岸迴流速度，導致底部泥沙凈向岸搬運，並被激岸浪的上沖水流帶至海濱線上堆積。 -
An offshore platform is subjected to the action of environment loads such as the wind, wave, flow and ice etc. these loads are long - term and consecutive, so an offshore platform exist more serious vibration during its serving life than other buildings in land
海洋平臺受風、浪、流和冰等環境荷載的作用，這些外荷載具有顯著的長期性、連續性特點，因此，海洋平臺在使用過程中存在著較陸上結構更為明顯、持續的振動問題。 -
On the basis of the integral differential pressure method, the force of flow - induced vibration in pipe on offshore platform is studied
應用微元壓力積分法對海洋平臺輸液管道內流體激振力進行了研究。 -
On the basis of the studies done on the vibration of fluid - conveying pipes in the world, the flow - induced vibrations of pipes on offshore platform and in water are studied in this dissertation
本文在分析國內外輸液管道振動研究的基礎上，對海洋環境下的輸液管道流體激振進行了研究。 -
The main work accomplished in this dissertation is as follows : on the basis of the theory of oscillating fluid mechanics and the parametric polynomial method, the flow - induced vibration of pipe on offshore platform is studied
具體工作內容如下：根據振動流體力學基本原理，應用參數多項式方法，對海洋平臺輸液管道內流流體激振進行研究。 -
The results obtained are analysised and compared to experimental results referred to. according to the partial linearization theory of oscillating fluid mechanics and theory of fourier transform, the flow - induced vibration of pipe on offshore platform is studied
應用振動流體力學中的局部線性化理論及傅立葉變換理論（傅立葉級數及離散傅立葉反變換） ，對海洋平臺輸液管道內流流體激振進行研究。 -
The mechanisms of flow - induced vibrations of the fluid - conveying pipes on offshore platform and in water are analyzed, the physical models and mathematical models of flows in pipes on offshore platform and in water are established, with the programs of numerical simulation, the flow of vibrating pipe, the force of flow - induced vibration in pipe on offshore platform and the lift and the drag of flow acting on the fluid - conveying pipe in water are solved, and the linear solution for equation of vibrating fluid - conveying pipe in water with the fixed supports in two ends is derived
分析了海洋平臺及水下輸液管道的流體激振機理，建立了相應條件下的物理模型及數學模型，應用matlab軟體編制了計算程序，對海洋平臺輸液管道內流流場、管道所受流體激振力及水下輸液管道繞流受力（橫向升力及縱向阻力）分別進行了求解，並推得了兩端固支條件下水下輸液管道強迫振動方程的線性解。 -
According to the characteristics of offshore construction projects and based on common management flow, this paper analyzes four major contents of the cost control of offshore construction project, i. e. design control, procurement control, construction control and final account control
文章針對海工建設項目的特點，從海工建設項目管理的一般流程出發，分析了海工建設項目成本控制的四項重點內容，即設計控制、采辦控制、製造施工控制、結算控制。
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