波浪模擬 的英文怎麼說
中文拼音 [bōlàngmónǐ]
波浪模擬
英文
wave simulation- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 浪 : Ⅰ名詞1 (波浪)wave; swell; billow; breaker 2 (像波浪起伏的東西) things undulating like waves 3...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 擬 : 動詞1. (設計; 起草) draw up; draft 2. (打算; 想要) intend; plan 3. (模仿) imitate
- 波浪 : wave
- 模擬 : imitate; simulate; analog; analogy; imitation; simulation模擬艙 boilerplate; 模擬電路 [電學] circ...
-
On the basis of many related data from abroad, this thesis is an attempt to simulate the hydrodynamic characters of abyssal gravity cages under the action of currents and waves
本論文正是從這一點出發,根據國外有關抗風浪網箱資料,在試驗室中模擬深水重力式潛網在水流、波浪作用下的受力特性。When the effect of surface wave breaking is considered, mld is 50 cm deeper than that obtained without wave breaking, and with the enhancement of wind stress forcing, the deepening of mld is increased
模擬結果表明,當考慮波浪破碎的影響時,混合層深度比無波浪影響時的結果加深了約50cm ;隨著風應力作用的增加,波浪破碎加強了混合層中的湍流混合,促使加深幅度也增加。Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity
該模型的主要特點是: ( 1 )它採用了三尺度復合表面模型的思想來計算海面的電磁散射,考慮了中等尺度波對紋波的進一步調製作用,彌補了傳統雙尺度模型的不足; ( 1 )它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截面的調製作用,實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬; ( 3 )它把海面長波的軌道速度作為基本的動態成分,並依此來考慮海面運動對sar回波信號的影響。Super - resolution spatial spectrum estimation is applied in this dissertation to realize bearing resolution by utilizing the different bearings between targets and first - order sea echoes. the simulation of radar echoes in one resolution cell is presented based on the theoretically analyzing hf sea clutter sea clutter reflection characteristic and sea echo spectrum stretching mechanics
本文從分析高頻海雜波反射特性以及平臺運動引起海浪展寬機理入手,建立便於理論研究的一階展寬的海雜波和二階海雜波模型;在分辨單元上對雷達回波信號進行了模擬。In this paper, the numerical harbor should include following contents : 1. database of wave field, tidal current field, sediment field in researched area ; 2. database of ship styles. 3. numerical model used to analysis data. 4. plans of outer dike, utilities of sea line, and selections of waterway, which based on the above databases
本文認為,對于港區而言,數值化的內容應包括以下幾個方面: ( l )所研究港區的波浪場、潮流場及泥沙場等自然條件數據庫的建立; ( 2 )船型數據庫的建立; ( 3 )數值分析模式的建立; ( 4 )提出建立在自然條件基礎之上的外堤布置、碼頭岸線利用策略及航道的擬定方案(即優化模式的建立) ; ( 5 )按照經濟最優原理快速準確地提出碼頭裝卸的策略及當前方案。In the study of directional spectrum and reflection coefficient of multidirectional wave, firstly the wave elevation trains overlapped by the incident wave and the reflected wave of multidirectional wave are simulated in the method of a frequency corresponding to a direction. then the composed wave trains are analyzed respectively by the mbdm and the mmlm. during the numerical study, the input factors include the various wave parameters, the different measuring wave system and the various reflect characteristic
在多向不規則波入射波方向譜和反射系數的分析研究中,利用方向頻率對應法模擬了多向不規則波入射波與反射波疊加的波面序列,將此合成波列分別應用mbdm和mmlm進行分析,通過輸入各種波浪參量、不同波浪測量系統和各種反射特性等因子,檢驗了mbdm和mmlm方法的適用條件,對兩種分析方法的性能進行了比較分析。Dean, r. g. and dalrymple, r. a. ( 1984 ), water wave mechanics for engineers and scientists, prentice - hall inc, englewood cliffs, new jersey
王豪偉、黃清哲和吳京( 2004 ) ,三維數值黏性波浪水槽之模擬,第二十六屆海洋工程研討會議論文集, 101 - 108頁。Finally, the paper introduces the test of wave simulation by wave - making system that has improved. the test data indicate that it is able to competent at wave simulation of sea wave spectrum for shipmodel test, we have changed the situation that the wave - making system ca n ' t simulated sea waves. and have established the foundation for the quality of improving the scientific research of our school and experiment teaching further
最後,本文介紹了對改造后的造波系統進行波浪模擬測試情況,試驗數據表明,該造波機經過升級改造,完全可以勝任對船模耐波性試驗所要求的海浪譜的模擬,並且還可以根據需要模擬任意的海浪譜,模擬精度達到試驗要求。The computer speed is speeded up. the numerical results of the present models are in agreement with the theoretical solution and those of physical models. systematical numerical tests show that the present models can reasonably simulate the wave transformation, such as shoaling, refraction, diffraction, reflection, effect of currents and so on
比較詳細的模型驗證與應用表明,模型的數值模擬結果與解析解、物模實驗值吻合良好;可以較好地模擬波浪傳播過程中的淺水變形、折射、繞射和反射等多種現象;能正確合理地反映水流對波浪傳播的影響。So, optimization of breakwater planning is of great practical value and should be resolved immediately. at first, the paper narrates the development of numerical modeling, which includes shallow water dynamics theory and method, and compares the boussinesq model and mild - slope equation model. the purpose is to select one model that best fit for wave calculation in harbor engineering
本文首先綜述了波浪數值模擬的發展概況,其中包括淺水動力學的常用理論和方法,並詳細比較了目前使用較多的boussinesq模型和緩坡方程模型,其目的是選擇其中較為適合港區工程波浪計算的模式,並將其作為優化模型的驗證或用於適應度計算。This paper applies ittc single - parameter ocean wave spectrum to simulate a random long - crested ocean wave according to statistics superposition theory and real - time simulate disturbance on the ship by random wave. it simulates roll and pitch of the ship in random wave in the time domain and gains roll angle ( t ) and pitch angle ( t ) signal of ship rolling movement
本文根據統計疊加理論,採用ittc單參數標準海浪譜模擬模擬實際的長峰波隨機海浪,進而實時模擬長峰波隨機海浪對船舶的隨機擾動,對船舶在海浪中的橫搖和縱搖運動進行了時域模擬,得到船舶搖蕩運動的橫搖角信號( t )和縱搖角信號( t ) 。Sea wave high, pitching force, rolling force and rearing torque simulation algorithms are put forward
給出了隨機海浪波高、橫蕩力、橫搖力矩、艏搖力矩的模擬演算法。Simulating random movement of sea wave in the wave basin and making researchs into the action of sea wave on coastal and offshore structures could provide the reliable basis for engineering design and scientific experimentation
在實驗水池中模擬海上多向不規則波浪的隨機運動現象,進而研究波浪對海洋工程與港口建築物的作用,可為工程設計與科學實驗提供可靠的依據。Based on the ship course control system, h wave filter using the linear wave model is designed and simulated through three aspects
3我們以船舶航向控制系統為基礎,採用線性海浪模型設計了一個h _海浪濾波器,並分三種情況對該濾波器進行了詳細的模擬。On the basis of sediment concentration field, the annual back silting intensity on the approach channel of 70000 dwt at lianyungang harbor was also simulated, and the calculated results was coincident with actual data
鑒于進港航道回淤量是當地海域潮流、波浪、泥沙長期共同作用的結果,建議採用年平均含沙量場進行回淤計算,並在此基礎上模擬了連雲港7萬噸級進港航道的年回淤強度,計算結果與實測資料吻合較好。So for, because of the restriction of experiment boundary condition that different original condition and over ideal theorization model that is mentioned in the preface, it is imminence needs to understand the changing of reality soil on the true wave loading in true time and space so that validated and lead next research in theory and simulation
正如在前言中對此方面研究評述所提及,目前的研究被與實際迥異的實驗邊界條件和過分理想化理論模型制約,迫切需要了解真實的時間和空間尺度下,真實的土體在真實的波浪荷載作用下將發生怎樣的變化,以驗證和引導我們進行的理論與模擬研究。Then a simplified computational modal of damping isolation systems is established for a platform structure, and the relationships between the parameters of isolation layer and structural damping ratio, including their vibration - suppressed effect on the whole structure and the relative displacement of isolation layer are studied, and the simulation analysis under several representative load case of random wave force and earthquake affairs is performed. under random wave force, using complex mode theories, non - classically damp problems considering the interaction between the structure and wave, lying in deepwater, are studied. and the resolution solution of structural response are achieved. the results of calculating and analysing show that adding damping isolation to a jacket is an effective way to reduce vibration for offshore platforms
針對某一典型平臺結構,建立了海洋平臺結構阻尼隔振體系簡化計算模型,進行了波浪荷載工況和地震工況的數值模擬,研究了隔振參數與結構阻尼比的關系以及它們對結構整體和隔振層層間相對位移的控制效果,運用復模態理論研究了位於較深水位的固定式導管架海洋平臺在隨機波浪力作用下考慮結構與波浪相互作用時運動方程中非經典阻尼的解耦問題,獲得了結構響應的解析解。We have made a full theoretical analysis of the wave property and the wave parameters of the flap - type wave generator in the towing tank of our school, and confirmed that should make the factor that the performance of the wave generator give play to normally to influence. in allusion to that the old wave generator can not simulate sea wave, upgrade and transform to this system change the control computer system and install additional d / a change card, redesign the wave control interface and transmission means of control signal, give up the disk machine that can not be used, make the wave - making control voltage signal that has translated direct input the wave controller, make wave controller to make waves through servo system
對我校船模水池原有的搖板式造波系統的性能進行了理論分析,針對水池原有造波機系統模擬海浪的不足,對該系統進行升級與改造,更換了主控計算機並加裝d a轉換卡,重新設計了造波控制信號的介面與傳輸方式,捨去了原系統中現已淘汰的磁盤機,使轉換后的造波控制電壓信號直接輸入到造波控制器中,再由造波控制器通過液壓伺服系統驅動造波板進行造波。For improving the make - wave system function, widen wave simulation form, raise wave simulation quality, we have this paper
從改進水池造波系統性能,拓寬波浪模擬形式,提高水池造波品質目的出發,我們有了這篇文章。The expression of the improved boussinesq equations in curvilinear orthogonal coordinate system is derived. on the basis of poission equation conversion, the methods to generate curvilinear orthogonal grids are introduced, and then the two - dimensional numerical wave model under curvilinear orthogonal coordinate system is established
推導了正交曲線坐標系下的改進型boussinesq方程,以poission方程變換為基礎,建立擬合正交曲線坐標系下正交曲線網格的生成方法,進而建立正交曲線坐標系下的二維波浪模型,提高了模型對復雜地形的適用性。分享友人