震動速度 的英文怎麼說
中文拼音 [zhèndòngsùdù]
震動速度
英文
velocity of vibration- 震 : Ⅰ動詞1 (震動) quake; shake; shock; vibrate 2 (情緒過分激動) be greatly excited; be deeply ast...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 震動 : shake; shock; vibrate; quake; chatter; tremulation; succussion; oscillation
- 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
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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。Then using wilson - # method and linearity acceleration method to calculate the earthquake time - history reaction of a base isolation buildings. the results indicate that the benc - wen model and the bilinear model can couvade the restoring - force character of the isolation bearings exactly well
然後,以實驗模型在振動臺上受激勵,獲得加速度頻響函數的方式來考察我們選取的模型擬合效果,選取一個適合瀝青隔震墊的恢復力模型。7. horizontal earthquake acceleration is used in this paper for slope risk analysis ; the relationship between the safety factors under the earthquake effect and non - earthquake effect is obtained. the reliability index is expressed by the safety factor
7 、將地震力效應以水平地震加速度的形式引進土坡的可靠度風險分析中,探求動力作用下土坡的動力安全系數與相應條件下的靜力安全系數的關系,並以安全系數來表徵土坡的可靠度。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。Compared the results of fea and the data of experiment, we can analyse that the distributing of the seismic stress of polymer - geogrid reinforced material is similar to that of the static stress, but the stress values of them is different ; the seismic similar friction coefficient between the earth and reinforced material fall with the increasing of earthquake acceleration, model acceleration respond along the height of the model, etc. thirdly, according to the comparison and analysis of the model seismic fea results and model experiment data, we can find the polymer - geogrid reinforced earth seismic fea is reasonable, which is composed by earth element, contact element and reinforced material element
通過對比有限元計算結果和試驗數據,分析得出塑料土工格柵筋材的最大動拉應力的分佈與靜拉應力的分佈沿筋材的埋深大致相同,只是應力的值大小不同;地震作用下土筋間的動似摩擦系數是隨地震加速度的增加而減小;模型沿墻高方向的加速度響應等。接著,根據模型動力有限元時程分析結果和模型試驗數據的比較分析,得出由土體單元、接觸單元和筋材單元組合的塑料土工格柵加筋土非線性動力有限元分析模式的合理性。First of all, it determines the scope in which earthquake might be genetated, the potential seismic sources areas and the upper limit of the earthquake magnitude through the analysis, research and evaluation of the area seismic geological condition of the workzone. secondly, according tothe research of the seismic activity, it also determines the seismic activity coefficients for per potential seismic sources areas, and the delay relation of seismic intensity and seismic accelaration, and then three different seismic intenstities and dynamic strength of bedroch under different probability are given. through the analysis and caculation of earthquake hazard with the analytic approach of probability
首先,對工作區的區域地震地質環境進行了分析、研究、評價,確定了萊蕪市可能發生地震的范圍、潛在震源及其震級上限等。其次,根據對地震活動性的認識,確定了各潛在震源區的地震活動性參數及萊蕪市地震烈度和地震加速度衰減關系,在此基礎上用概率分析法對萊蕪市地震危險性進行了分析計算,得到了萊蕪市在三種不同概率水平下的地震烈度和基巖地震動強度。Based on the numerical simulation method of finite element, the calculation method of particle vibration velocity, an important index reflecting the blasting vibration intensity, is discussed ; and an comparison analysis of the calculation results between two different kinds of charge structures decked with air and water is made
基於有限元數值模擬方法的基礎上對反映爆破震動強度的重要指標質點振動速度的計算方法進行了探討,並對空氣和水兩種不同間隔裝藥結構下的震動強度計算結果進行了對比分析。With a practical example of tamper vibration monitoring, this paper has analyzed the vibration monitoring result and the contents of practical application
對強夯施工引起的地面振動進行同步監測分析,可給出強夯振動影響的地震烈度評價、振動主頻、振動速度參數和振動安全距離。Abstract : this paper discusses the vibration velocity of blasting seism and the reaction chart of the blasting vibration, and offers some helpful suggestions about solving engineering blasting problems
文摘:對爆破地震的振動速度與爆破振動反應譜進行了分析和探討,為解決工程爆破問題提供了參考意見。By virtue of the design features of the mania dam, this paper studies the dynamic characteristics of the dam materials. by comparison with other similar projects, it presents a curve for dynamic characteristics of clay core materials and rockfill materials, makes analysis on the dam ' s plane dynamic response by finite element method, calculates the dam ' s seismic acceleration, the dynamic shear stress of the rockfill, and the dynamic stress of the cutoff wall in the overburden layer
本文針對滿拉土心墻堆石壩的設計特點,進行了築壩材料動力特性試驗研究,通過與相關工程對比給出了心墻料和堆石料的動力特性曲線,採用有限元方法進行了大壩平面動力反應分析,計算了大壩的地震加速度、堆石體動剪應力及覆蓋層防滲墻的動應力。If the inputted accelerations are velocity - zeroized and the damage value is calculated according to shear stress " extrema, as to 100 - meter - high earth dam, multi - point effect is not distinct ; but as to 240 - meter - high earth dam, in the part where permanent displacement and damage value is originally bigger the response is less tenser than that by one - point input, and in the part near basement the maximal shear stress and damage value is bigger, that is the multi - point effect in time domain
若同時進行了多點地震動速度歸零化和採用基於極值的損傷值計算方法,對於100米高的土石壩,多點輸入與單點輸入反應十分接近。對於240米高的超大型土石壩,壩體內永久位移和損傷值較大的部位多點輸入的反應量較小,這是多點輸入反應的特點或說多點效應。另外,多點效應也包括壩基部位的最大動剪應力和損傷值偏大這一效應。This paper confirms a kind of non - linear mapping relation between vibration velocity of particles on building and the influence factors, such as total explosive charge, maximum explosive charge fired at the same time, the distance between blasting point and monitoring points, peak particle velocity of ground where building is, the height from monitoring point to ground, and so on, and sets up a support vector machine ( svm ) model for forecasting the vibration effect induced by an explosion
應用支持向量機,建立了總藥量、最大段藥量、爆破點與監測點距離、構築物所在地面震動峰值速度、測點到地面的高度等因素與建築物上的質點震動速度之間的非線性映射關系,確立了支持向量機預測模型。Study on safety vibration velocity caused by blasting for fresh placing foundation concrete
爆破震動作用下新澆基礎混凝土的安全震動速度研究The ground seismic acceleration is conversed as the input seismic acceleration from bedrocks, which is useful in the next step
利用反演分析所得的地震加速度曲線作為基巖的地震輸入曲線代入下一步動力分析步驟之中。Another problem is time - delay being in the control of mr structure, hi this paper, one input of the fuzzy logic controller is the seismic acceleration that avoids some time - delay being in the control. but time - delay being in the structure still is n ' t solved, so the neural network technique is introduced to predict the seismic responses of structures to avoid it, and the bi - state neural network control and fuzzy full - state neural network control are proposed. 4
對于磁流變阻尼結構控制中的時間滯后問題,本文將地震加速度作為模糊邏輯控制器的一個輸入,消除了控制中部分滯后問題;但仍存在著結構本身的滯后問題,對此引入神經網路對建築結構的地震反應進行預測,並基於預測的動力反應和實測結構的動力反應的綜合值作為模糊邏輯控制器的輸入來消除建築結構本身的時滯,並提出了雙態神經網路控制和模糊全態神經網路控制; 4Therefore, study on dynamic properties of cement mixed pile foundations and the soil structure interaction during earthquakes is of great theoretical and practical importance in seismic design. this dissertation studies the static and dynamic properties of cemented composite foundations systematically through tests and parameters of duncan - chang model and hardin - drnevich model are generalized. the seismic acceleration is conversed and used as input acceleration through nonlinear method
本文通過試驗系統地研究了水泥攪拌樁復合地基的靜力和動力特性,得到了復合地基的靜力duncan ? chang模型參數和hardin ? drevich非線性彈性動力模型參數,採用非線性方法對地震加速度進行了反演並將之作為基巖輸入加速度。Total 18 simulated acceleration time histories for intensity 6, 7, 8 and 9 are adopted as inputs, 6 typical retaining walls heights and 2 bridge abutments with difference are selected as the structural models of soil - structure system, the seismic responses of the system and the horizontal variation of the maximum response accelerations at different height levels are analyzed by means of a wave propagation finite element program
選用針對地震烈度6 、 7 、 8 、 9合成的總共18條地震動時程,選取具有代表性的6個不同高度的擋土墻以及2個不同高度的橋臺模型,利用波動有限元法既有程序分析地震反應,研究水平地震加速度沿高度的分佈規律。The variation of ground motion with depth is an important consideration in characterizing ground motion for embedded structures. in this paper, a study on the earthquake ground and underground motion by analyzing the surface and downhole data from hosokura mine array of japan and csmip geotechnical arrays of u. s. a. is conducted
本文的研究對象及地震動數據包括:美國加州強震觀測計劃( csmip )的6個土工臺陣( geotechnicalarray )的28個地震,包括ns 、 ew和un三分量共429條地震加速度時程。Characteristics of reaction spectra of explosion vibration velocity in blasting the dachaoshan mono - arch bridge
大朝山單跨拱橋爆破震動速度反應譜特徵Analysis of difference between differential values of velocities of blasting vibration and actual measurement values of accelerations
爆破震動速度微分與實測加速度的差異分析分享友人