波速面 的英文怎麼說
中文拼音 [bōsùmiàn]
波速面
英文
wave velocity surface-
The characteristic surface is essentially an acceleration front.
特徵曲面實質上是一種加速度波的波陣面。When the hydrodynamic front reaches the ambient medium it acts like a fast-moving piston.
當流體力學波陣面抵達周圍介質時,它像一個運動迅速的活塞。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。In the process of work, according to complex geological conditions such as huge thick soft clay in site and top surface of possible pile foundation supporting course fluctuating in large amplitude, we adopted many advanced exploratory methods ( just as high accuracy exploration of shallow earthquake, crosshole wave velocity test, vane shear test, pressuremeter test, etc. ), we found out that there is an ancient groove of yangzi river in former plant site, therefore we suggested in time that plant site should properly be moved eastwardly, only this item saved nearly about 50 million for pile foundation project cost
在工作過程,根據廠址區軟粘土厚度大、可能作為樁基持力層頂面起伏變化大等復雜地質條件,採取了多種先進的勘探手段(如高精度淺層地震勘探、跨孔波速試驗、十字板剪切試驗、旁壓試驗等) ,查明了原廠址區存在一個長江古凹槽,並及時建議廠址適當東移,僅次一項就節省樁基工程費用近5000萬元。Applying classical wave theory, a concept of equivalent elastic modulus on propagation speed modification of guided wave through " variable cross - section " of metal bar embeded layer was put forward
摘要運用波動的經典理論,提出了導波在金屬桿嵌入層「變截面」傳播時波速改變的「等效彈性模量」的概念。With the correlation technique, direction and speed of the infrasound can be calculated by computing the time delay of each detector and by using geometric knowledge
利用互相關技術,計算信號在不同傳感器上的時間延遲,再由平面幾何原理,得到波的方位和波速。Using three - dimensional tomographic imaging results of 2 ? 2 ? grid s wave velocity and 15 ' 15 ' grid average gravity anomaly in north china, this paper adopted inversion with constrained least squares method and, as a result, obtained density distribution results of six bedding surfaces in lithosphere of north china
摘要利用華北地區的2 ? 2 ?網格s波速度三維層析成像結果和15 ? 15 ?的網格平均布格重力異常,採用約束最小二乘方法反演,得到了華北地區巖石圈內6個層面上的密度分佈結果。Generally, tidal bore is wave alignment moving upstream estuary, and its surface will break when the wave alignment is strong, which leads to water roll tracing the source. the velocity, which is between small - disturbed wave velocities before tidal bore happens and the one after tidal bore happens, increases with the ratio of tidal bore height to the water depth in wave front
涌潮一般是向河口上游推進的波列,強度大時,表面破碎,進而發展成溯源推進的水滾,其傳播速度隨涌潮高度與波前水深比值增加,大小介於涌潮前後小擾動波波速之間。High energy explosive was used to create a powerful and planar shock wave for accelerating flyer plate to high velocity, and high pressure was produced when flyer impacting with the sample. in the experiments, the impactor was brass and target was ofhc copper. by measuring the shock wave velocities of hr2 steel, high - density glass, aluminium alloy ( ly12 / lf6 ), magnesium - aluminium alloy ( mb2 ), polymethyl methacrylate and air, shock pressure and release isentrope of ofhc copper have been obtained
採用化爆加載、平面波發生器和空腔增壓技術,以黃銅為飛片,無氧銅為靶板,測量了抗氫鋼( hr2 ) 、重玻璃( sio _ 2 ) 、鋁合金( ly12 lf6 ) 、鎂鋁合金( mb2 ) 、有機玻璃( pmma ) 、空氣( air )和無氧銅( ofhccopper )各阻抗匹配樣品中的沖擊波速度,上述材料的hugoniot狀態參數c _ 0 、均為已知,由此確定了無氧銅的沖擊加載壓力和等熵卸載后的狀態,得到了等熵卸載路徑。Rayleigh surface wave exploration technique is used to get transverse wave speed of impermeable wall, which build on the theory of half space
在此基礎上,我們把瞬態面波技術應用於防滲墻無損檢測中以獲得防滲墻的剪切波速。The velocity equation of stoneley waves at a liquid - solid interface
固體分界面處斯通利波的波速方程Seismic survey is a new method used to civil engineering area in recent years. it was widely applied to survey or detecting of roadbase, dam base, foundation of building, tunnel, river bed, lake bed and etc. the chief methods are reflection method, refraction method, wave velocity testing, surface ware survey and transverse wave suivey. seismic survey can divide different layer, measure the incidence of sediment stratum, detect the structure of rock, test the handle effect of surface wave survey, we can calculate the carrying capacity of foundation and other mechanical parameters. this technique can give service to some big engineering departments such as highway developing company, survey design company, water supply company, plan bureau, construct bureau etc
應用於工程的主要方法有反射波法折射波法波速測井面波法及橫波勘探等。地震勘探能詳細劃分地層高精度地確定沉積地層的傾角能夠準確探明巖體構造褶皺斷層破碎帶裂隙帶對于回填工程路基壩基,地震勘探可以檢測其回填處理效果對于隧道工程,可以探測隧道洞體的圍巖分類及洞口地質情況利用面波勘探所得到的瑞利波速度,可以準確推算地基的承載力動彈模量等力學參數。The longitudinal wave velocity in saturated soil could not only be useful, but reflect more information as well. the shear wave velocity may be different from the shear sewv, the difference is proved to be caused by porosity and structure factor
認為潛水面下縱波速度能反映更多的信息,並且,橫波速度與骨架的橫波速度也可以由孔隙率及結構因子引起差異。In the aspect of saw devices, for zno has high coupling factor, and aln has high saw velocity, if zno thin film was deposited on aln thin film, the multiplayer film has not only high coupling factor, but also has high saw velocity, which was suitable for saw of high frequency
在聲表面波器件應用方面,由於zno具有很大的機電耦合系數,而aln的聲表面波傳播速度較高,因此若zno和aln相結合,則不僅具有大的機電耦合系數,而且具有很高的聲表面波速度,這非常適合於製造高頻聲表面波器件。Using a simulation of physical model and according to the analogical principle, a simplified double - layer model of the surface and roadbed of concrete highway is established, practical methods of distinguishing the reflected ultrasonic wave, measuring the velocity of the reflected ultrasonic wave and the time parameter, which the ultrasonic wave takes from leaving source to the received by receiver, are put forward
摘要利用模擬物理模型,並根據相似性原則建立起公路路面和路基的雙層簡化模型,提出了一種準確識別反射波,測量反射波速率及走時參量的實用方法。The quantification indexes that token weathered degree are primary velocity, borehole rqd ( rock quality designation ), joint space, joint number and so on, and the unloading ones are primary velocity, joint opening, borehole penetrability and so on. the compartmentalization of different weathered and load - off zones according to quantification indexes tallies with the slope geo - stress computed by finite element method
其中研究風化分帶的定量指標有縱波速vp 、鉆孔rqd 、結構面間距與條數等,研究卸荷分帶的定量指標有縱波速度、節理開度與鉆孔巖體透水性,據此劃分的不同程度風化、卸荷巖體與有限元計算的壩區河谷應力場具有良好對應性。( s ) weathering and unloading action which are the two main exogenous process is active in epigenetic - surface. so, although one is different with the other, they are associated with each other closely and are cntrolled by geostress and seepage fields. in fact, weak weathered zone corresponds to weak load - off one, strong weathered zone corresponds to strong load - off one in virtue of result of this dissertation. ( 6 ) rock mass is a geologic body which is composed of rock and structural plane. and under the condition of geostress. temperature and seepage fields, correspondingly. studying weathering should pay attation to the aspects of rock, structural plane and fields. according to this. the author subdivises rockmass weathering into rock weathering and structural weathering, ulteriorly, the dissertation studies rockmass weathering from three aspects as follows : ? ock weathering : aberrance degree of mineral and physical mechanical performance of weathered rock ; ? e have already knew that weathering action damage the integrity of rock mass, but few applies it to engineering practice. the dissertation is based on trend o
本文研究結果為弱卸荷與弱風化大致對應、強卸荷與強風化大致對應; ( 6 )巖體是由組成它的巖石與缺陷賦存於一定環境場中的地質體,據此本文將巖體風化細劃為巖石風化與結構面風化,並進而將表徵巖體風化的指標相應地歸結為三個方面來加以研究並應用於工程實踐,這就是:對于巖石風化,主要為礦物的變異程度與風化巖石的物理力學性能研究:雖已認識到風化作用破壞了巖體完整性,但將該理論應用於巖體風化分帶卻不多見,本文即從淺表部位硬性結構面間距、條數、跡長、塊度等隨遠離臨空面的變化規律來研究巖體風化分帶:不同風化、卸荷程度的巖體實際處于不同環境場中,彈性波速變化與特定環境場相對應,因而是反映巖體風化、卸荷的綜合因素。Surface wave velocity detecting tests and dry density detecting tests by pit replacement method were conducted respectively for the transient material ( a ) and main rock - fill material ( b ) used in the construction of concrete - faced rock - fill dam of shuibuya project
摘要以水布埡面板堆石壩施工中的過渡料( a )和主堆石料( b )為主要檢測對象,分別進行了面波波速和試坑置換法干密度的對比檢測試驗。With a special observation system, the surface thickness of concrete highway is derived by the velocity and time parameter
採用特殊的觀測系統,由波速及走時反推路面厚度。At the same time, the thickness of target should also be in accord with the impact velocity. experiments of quasi - isentropic loading to 93 w alloys by 93w - ofc - tc4 - a1 - mbz system flier - plate with graded wave impedance were performed on light gas guns. the corrected visar - measured wave profiles were profiles with an initial velocity jump followed by a stepwise - rising front to the peak velocity amplitude, indicating that quasi - isentropic compression energy waves had been successfully generated
在輕氣炮上利用研製的93w - ofc一tc4 . ai一mbz系波阻抗梯度飛片實現了對93w合金(靶材料)的準等嫡壓縮,經修正後的測試波形都是由一個較弱的初始速度跳躍和一段呈階梯狀緩慢上升的波陣面前沿所組成的準等嫡壓縮波。分享友人