模擬地震波 的英文怎麼說
中文拼音 [mónǐdezhènbō]
模擬地震波
英文
simulated seismic wave- 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
- 震 : Ⅰ動詞1 (震動) quake; shake; shock; vibrate 2 (情緒過分激動) be greatly excited; be deeply ast...
- 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...
- 模擬 : imitate; simulate; analog; analogy; imitation; simulation模擬艙 boilerplate; 模擬電路 [電學] circ...
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And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media
以土力學模型為基礎,利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播,採用了顯式差分方法(中心差分法和newmark常平均加速度法結合)和透射邊界,通過比較利用幾種差分格式求解的加速度結果,發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用,分別編制了體波( p波或sv波) 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。Studying the rule of the reflect - coefficient at the interface, simulating the seismic wave travel in the field beyond the critical angle, analyzing the wave polarity diversification, all the work provides a theory for the wide - angle reflection
通過研究反射系數在超臨界角部分的規律,模擬地震波在超臨界角的傳播,分析了地震波的極性變化,為廣角反射提供理論依據。The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed
較好地解決多阻尼比反應譜擬合問題;本文方法通過一次運行就能獲得一組具有集系特性的地震動,在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢,產生的人造波或人造波集系可滿足工程抗震設計需要;在遺傳演算法中,交叉概率和變異概率是影響收斂速度的重要參數,本文採用的改進自適應交叉概率和變異概率,可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率,以保證演算法始終以較好的速度向pareto最優解集逼近。Study on the characteristics of microseism changes before strong earthquakes by digital seismic network
數字化遙測臺網與模擬臺網記錄的地震波形特徵比較The precious method to simulate earthquake accelerations is not perfect because the points on the interface still move according to the simulated acceleration when the points " motion ends, which is obviously a paradox. if the points " velocity is not zeroized, soil ' s damage value based on shear stress ' s peaks or extrema is overestimated in multi - point input analysis. the new method ' s rationality is analyzed
以往人工合成的地震波在地震結束時即地震加速度恆為零時速度不為零,這與合成地震動是「模擬輸入點從靜止到運動再到靜止的運動過程」這一要求不一致,同時導致時域內多點輸入分析時差動力過大以至算出的損傷值過大,於是本文提出了簡易的地震動速度歸零化方法並分析了其合理性。By employing the theory of operator representation, the reflection / transmission operator is decomposed into the form of double domains in the scheme, so it is adaptable to laterally heterogeneous media and fluctuating reflectors, can mimic ava of reflections when the incident angle is less than 45
文中利用運算元可分表示理論將反射透射運算元分解成適合於雙域(空間域和波數域)運算的表達形式,使得本文得到的地震波數值模擬演算法可適應於一定程度橫向非均勻介質和界面起伏情況,在入射角小於45時能夠準確模擬振幅隨入射角( ava )的關系。The dissertation focuses on seismic wavefield forward modeling and migration for the fractured reservoir. the paper integrates and researches the wavefield extrapolation operator for lateral variation of velocity, analysis of the wavefield characteristic, forward modeling and depth migration of prestack and poststack seismic wavefield, creation of wavelet, design of the model with fracture and cavity, and computation of reflectivity
本文圍繞縫洞儲層地震波場正演與偏移問題,對橫向變速波場延拓運算元;疊前與疊后正演模擬;疊前與疊后深度偏移;子波的生成;縫洞模型的設計、反射系數的求取、正演、偏移及其波場特徵分析進行了一體化研究。In term of analyzing and summarizing the existing achievement, propose an advanced and practical wavefield extrapolation operator and arithmetic of forward modeling and migration, which obtain numerical simulation and analysis completely and systemically and exploited new field of fractured reservoir seismic wavefield numerical simulation and applicationin in frequency - wavenumber domain
在總結、分析前人研究成果的基礎上,提出了具有前瞻性和實用性的波場延拓運算元與正演、偏移演算法,較系統全面地進行了數值計算與分析,開辟了頻率?波數域縫洞儲層地震波場數值模擬與應用的新領域。Seismic record numerical simulating and wave - field characteristic analysis of buried hill surface
潛山面地震記錄數值模擬及其波場特徵分析Further, analyse the characteristic of the seismic wavefield of fractural reservoir and the influence caused by fracture density, property of the filled material and the strike of fracture. fifthly, in term of research of zhangshulun et al., concisely discuss the arithmetic of the plane wave forward modeling and migration with phase shift method, in prestack common offset gathers and check the arithmetic by numerical simulation
第四,用基於彈性?聲學近似的反射系數計算公式和本文提出的付氏變換子波生成法得到縫洞模型的反射系數模型和子波模型並用vrselrf波場延拓運算元對其進行地震波場數值模擬;進一步分析了縫洞儲層的地震波場特徵及縫洞密度、充填物性質和裂縫走向對其波場特徵的影響。In this article, the author stimulates some complex sites using two - phase media motion differential equations, finite element lumped - mass method and multi - transmitting formula
本文利用兩相介質運動微分方程和集中質量有限元法,並結合透射邊界對幾種復雜場地對地震波傳播的影響進行了模擬。Currently, researchers from home and abroad usually use simplified models in the aseismatic analyses of immersed tunnels, which can not properly simulate the two functions of the soil, while the finite element method solves this problem successfully, and the development of numeric calculation and computer technology lays a solid basis for its application, it is a pity that the applications of fem is not common currently
目前,國內外對沉管隧道進行抗震分析時,大多採用簡化計算模型,將土的作用以等價彈簧和阻尼器代替,不能適當模擬土既是地震波的傳播介質又是結構物的支承介質的雙重作用。動力有限元法的連續介質模型很好的解決了這一問題,數值計算理論和計算機技術的發展為該方法的應用奠定了堅實的基礎,然而,目前這方面的應用還很少。Three seismic waves are selected to do the shaking table test in 51 operating modes. the acceleration displacement responses and strain of the model are measured and the appearance and development of the crack are observed
選定三條地震波,對該模型進行了51種工況下的模擬地震振動臺試驗,測定了模型結構的加速度、位移反應、重點部位的應變,觀察了裂縫出現和發展情況。Imitating the track spectrum by the method of the seismic wave of artificial simulation
仿人工模擬地震波的方法模擬軌道譜Seismic wave field modeling with convolutional differentiator algorithm
地震波場模擬中的褶積微分運算元法It proves the method could effectively model the sprea of seismic wave in the linear viscoelastic solid by what we theoretically analyze
實際計算結果表明該方法能有效模擬標準線性粘彈體中地震波的傳播。The absorbing boundary conditions to avoid the artificial boundary reflections must be required in the numerical simulation of seismic wave propagation
摘要在地震波傳播數值模擬的過程中,需要使用吸收邊界條件從而達到衰減人為邊界反射的目的。This paper gives the suffering strength analysis of computelr simulating building initiative comtrol by earthquake waves effecting and analyzes some problems, this can give building reaction, destroy character and limit holding
本人用計算機模擬來模擬建築物在主動控制下受到地震波作用下的受力分析,從而來分析一些問題,這可以看到建築物在幾種地震波作用下的反應,其破壞特徵和極限載力。Trough the staggered - mesh finite difference simulations of the wave equations, simulated the propagation of the seismic wave and the relevant zero offset time record in the 2d viscoelastic random medium models
摘要通過交錯網格有限差分正演,模擬了平面地震波在二維粘彈性隨機介質模型中的傳播及其自激自收時間記錄。4, for the above optimal parameters, a large - scale shaking table model testing of the tmd seismic decrease structure using the el centra earthquake wave and an artificial earthquake wave ( rgb ) simulated by the trigonometric progression method is conducted. the above theories are approved through the analysis of the testing results
4 、針對理論分析提出的tmd裝置參數的優化取值,進行了tmd減震結構模型在elcentro地震波和由三角級數模擬法模擬的人工地震波( rgb )作用下的模擬地震振動臺試驗,試驗結果驗證了理論的正確性。分享友人