random waves造句
造句與例句
手機(jī)版
- Study on simulation of 3-d random waves
三維隨機(jī)海浪模擬研究 - The models of ship motion are analyzed under random wave action
給出了譜分析法求解艦艇運(yùn)動的方法。 - Experimental investigation of oblique random wave load on vertical breakwaters
斜向隨機(jī)波對直立堤作用的試驗(yàn)研究 - random wave-theory analysis of layered soil sites under p-and sv-wave excitations
波作用下層狀土層隨機(jī)波動分析 - The numerical random wave flume wave-maker appropriate for the volume of fluid method ( vof ) is established
提出了適合vof方法的隨機(jī)波數(shù)值造波機(jī)速度邊界條件。 - This paper brings up a predictive control system that makes the object keep horizontal state on the sailing ship in random wave
本文建立了隨機(jī)海浪作用下船上物體保持水平狀態(tài)的預(yù)測控制系統(tǒng)。 - By using random wave theory and directional wave spectrum, a matlab-platformed program is designed to simulate random wave crests for various directional spectral conditions in deep water
在此基礎(chǔ)上，利用臨界值對波面進(jìn)行切割，得到位于臨界值以上的三維波峰。 - By using random wave theory and directional wave spectrum, a matlab-platformed program is designed to simulate random wave crests for various directional spectral conditions in deep water
在此基礎(chǔ)上，利用臨界值對波面進(jìn)行切割，得到位于臨界值以上的三維波峰。 - This paper presents the experimental investigation of random wave impact on piled wharves with different shore connecting structures, also the certification analysis by the numerical simulation results
本文應(yīng)用物理模型試驗(yàn)和計(jì)算機(jī)數(shù)值模擬相結(jié)合的手段，對不同接岸型式碼頭面板底部受到的隨機(jī)波浪沖擊作用進(jìn)行了研究。 - Based on the unproved vof method, parametric studies have been carried out for random wave slamming on open piled wharf by numerical simulation . the governing equations are reynolds time-averaged equations and two equations k-model
為能反映出波浪沖擊過程的湍流特征，以湍流運(yùn)動方程??雷諾方程，及修正的?模型封閉雷諾方程為控制方程。 - It's difficult to see random waves in a sentence. 用random waves造句挺難的
- In this dissertation, the progress in the researches of spatial coherence of random waves is reviewed . based on this, studies have been carried out for the statistical characteristics of crest lengths and their influence on vlfs
本文回顧總結(jié)了近年來國內(nèi)外有關(guān)海浪空間特征量統(tǒng)計(jì)研究的進(jìn)展，并在此基礎(chǔ)上，開展了隨機(jī)海浪波峰長度統(tǒng)計(jì)特征及其對海上結(jié)構(gòu)物影響的研究。 - A brief introduction of synthetic aperture radar ( sar ) and the application of sar image data in the research of crest length distribution is introduced . the method to compute the action of random waves with different crest lengths on vlfs . is also reviewed
對星載合成孔徑雷達(dá)及其在波峰長度統(tǒng)計(jì)特性研究中的應(yīng)用以及不同波峰長度海浪對超大型海上結(jié)構(gòu)物的作用作了一個(gè)簡單的介紹，闡明了下一步的研究工作的思路。 - The multi-directional wavemaker system could generate very precise multi-directional random waves . the system has passed the expert appraisal organized by the ministry of education . the performance indexes of the multi-directional wave-maker system are consistent with international leading level
多向不規(guī)則波造波機(jī)系統(tǒng)可以較精確產(chǎn)生斜向波和多向不規(guī)則波，已通過國家教委組織的專家鑒定，其主要性能指標(biāo)達(dá)到國際先進(jìn)水平。 - 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(jù)統(tǒng)計(jì)疊加理論，采用ittc單參數(shù)標(biāo)準(zhǔn)海浪譜仿真模擬實(shí)際的長峰波隨機(jī)海浪，進(jìn)而實(shí)時(shí)仿真長峰波隨機(jī)海浪對船舶的隨機(jī)擾動，對船舶在海浪中的橫搖和縱搖運(yùn)動進(jìn)行了時(shí)域仿真，得到船舶搖蕩運(yùn)動的橫搖角信號(t)和縱搖角信號(t)。 - 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(jù)統(tǒng)計(jì)疊加理論，采用ittc單參數(shù)標(biāo)準(zhǔn)海浪譜仿真模擬實(shí)際的長峰波隨機(jī)海浪，進(jìn)而實(shí)時(shí)仿真長峰波隨機(jī)海浪對船舶的隨機(jī)擾動，對船舶在海浪中的橫搖和縱搖運(yùn)動進(jìn)行了時(shí)域仿真，得到船舶搖蕩運(yùn)動的橫搖角信號(t)和縱搖角信號(t)。 - This thesis is combined with the project " identification of nonlinear structural dynamic systems and the study on structural vibration control for offshore platforms ", which is supported by national science foundation of china . based on the present situation on the vibration control for offshore platforms, this thesis studies the dynamic properties of offshore platforms under random wave loading, furthermore, proposes feedforward-feedback control strategy and h2 control method to suppress the vibration of platforms
在充分了解國內(nèi)外有關(guān)結(jié)構(gòu)振動控制理論研究現(xiàn)狀的基礎(chǔ)上，本文考慮了海洋平臺在隨機(jī)波浪作用下所表現(xiàn)的動力特性，及振動控制技術(shù)在應(yīng)用于海洋平臺過程中的一些理論和技術(shù)問題，對海洋平臺振動控制技術(shù)和一些相關(guān)問題進(jìn)行了較為深入的研究。 - With the disturbance of random wave the ship will inevitably roll and result in the ship's incline, especially, for small ships which the most obliquity of the ship is likely to reach above degree 15 . in the actual combat the rolling movement of the ship will result in difficult control of the artillery for the artillerymen on the ship, reduce the artillery's probability of shots, and affect the power of the artillery by direct control of the object ( artillery ) fixed on the ship it can be kept horizontal state all the time
尤其是對大量的小型艦船，船體的最大傾角甚至可達(dá)到15以上。在實(shí)戰(zhàn)中，船舶的搖蕩將造成炮手對船載火炮的操縱性能降低，降低火炮的發(fā)射命中率，影響到船載火炮威力的發(fā)揮。通過直接控制固連于船體的火炮，使其始終保持在水平狀態(tài)，可以提高實(shí)戰(zhàn)中火炮的操縱性能，提高火炮的命中率。 - 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(jié)構(gòu)，建立了海洋平臺結(jié)構(gòu)阻尼隔振體系簡化計(jì)算模型，進(jìn)行了波浪荷載工況和地震工況的數(shù)值模擬，研究了隔振參數(shù)與結(jié)構(gòu)阻尼比的關(guān)系以及它們對結(jié)構(gòu)整體和隔振層層間相對位移的控制效果，運(yùn)用復(fù)模態(tài)理論研究了位于較深水位的固定式導(dǎo)管架海洋平臺在隨機(jī)波浪力作用下考慮結(jié)構(gòu)與波浪相互作用時(shí)運(yùn)動方程中非經(jīng)典阻尼的解耦問題，獲得了結(jié)構(gòu)響應(yīng)的解析解。 - 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(jié)構(gòu)，建立了海洋平臺結(jié)構(gòu)阻尼隔振體系簡化計(jì)算模型，進(jìn)行了波浪荷載工況和地震工況的數(shù)值模擬，研究了隔振參數(shù)與結(jié)構(gòu)阻尼比的關(guān)系以及它們對結(jié)構(gòu)整體和隔振層層間相對位移的控制效果，運(yùn)用復(fù)模態(tài)理論研究了位于較深水位的固定式導(dǎo)管架海洋平臺在隨機(jī)波浪力作用下考慮結(jié)構(gòu)與波浪相互作用時(shí)運(yùn)動方程中非經(jīng)典阻尼的解耦問題，獲得了結(jié)構(gòu)響應(yīng)的解析解。 - Statistics of wave crests with different directional spreading parameters and different directional functions are obtained and discussed . jonswap spectrum and the directional function suggested by mitsuyasu, donelan and wen respectively are employed in the analyses . statistical distribution of wave crest characteristics such as crest length, crest height, and directional angles based on the above-mensioned numerical simulation of 3-d random waves are analyzed
以jonswap譜為頻譜，選取光易型方向函數(shù)(含三個(gè)參數(shù))、donelan方向函數(shù)以及文氏方向函數(shù)等不同的方向函數(shù)進(jìn)行模擬，對得到的波峰形式進(jìn)行比較，分析了方向函數(shù)對波峰長度統(tǒng)計(jì)值的影響。
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