沖壓阻力 的英文怎麼說
中文拼音 [chōngyāzǔlì]
沖壓阻力
英文
drag; ram-
The result reveals that the stress control tube comprising a composite structure of the nonlinear resistive and capacitive material shows the best performance in uniforming the electric field distributions in cable terminations under impulse voltage
分析結果表明，在沖擊電壓下電纜終端採用由電容性和非線性電阻性材料復合絕緣結構的應力控制管時，電場分佈最為均勻。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。Mechanical impact dynamics is used to analyse the production and spread of stress wave when hydraulic pile hammer hammerblows piles, the stress wave influence the course of driving pile. slender hammer that is equal to wave resistance of the pile can bring ideal stress waveform. when the hammer weight is constant, efficiency of driving pile can be increased by means of selecting drive cap and cushion pad of different rigidity to match the hammer according to various geological condition and the pile. the structure and principium of hydraulic system of double - acting hydraulic pile hammer with double cylinders is studied in detail in the paper, the hydraulic system and electric control system of six - ton - double - actin hydraulic pile hammer with double cylinder is designed on the basis of it
本文應用沖擊機械繫統動力學分析打樁過程中錘體與樁撞擊時應力波的產生、傳播以及該波對沉樁過程的影響。認為與樁等波阻的細長狀錘體能夠產生理想的應力波波形；在樁錘重量一定的情況下，可針對不同的地質情況和樁，通過選擇不同剛度的樁帽和樁墊與其匹配來提高打樁效率。本文對雙缸雙作用液壓打樁錘液壓系統的結構和工作原理進行了深入的研究，並在此基礎上設計出六噸雙缸雙作用液壓打樁錘的液壓系統和電控系統。In this section the author analyses the rules of the pile ultimate tip resistance and the shaft friction resistance distribution and their exertion of cast - in - place socketed piles instrumented with strainometers in soft muddy rock. the second aspect of the paper is the analysis on the current rock pile vertical bearing capacity in the four standards gb50007 - 2002, tb 10002. 5 - 99, jtj024 - 85 and jgj94 - 94, then the design method with correlated formula of socketed piles in xigeda - mudstone is given. at the end of this paper, based on the research of pressure grouting technique in recent years, and combined with in - site test result, this paper puts forward the design and calculation method to grouted pile in xigeda - mudstone and the principle of choosing grouting parameters, which provid es experiences for applying this technique and further studying
本論文結合省級科研項目「西攀高速公路昔格達組泥巖層中鉆孔樁提高承載力的研究」 ，所做的研究工作主要在以下三個方面：一是根據8根樁身內埋設量測元件試樁的單樁豎向靜載荷試驗資料，分析了各試驗樁特別是常規沖孔灌注嵌巖樁在昔格達泥巖中的軸向力、側摩阻和樁端阻力的分佈和發揮規律；二是在討論現行規范對嵌巖樁承載力的計算公式的基礎上，探討了在昔格達泥巖層中的沖孔灌注嵌巖樁的側摩阻和端阻的計算方法，並推薦了相應的計算公式；最後，在吸取近年來對灌注樁后注漿技術研究成果的基礎上，結合現場試驗研究結果，分析了該項技術在昔格達巖層中的應用效果，提出了相應的參數選取，從而為壓力灌漿技術的工程應用和進一步研究提供經驗，並為今後在該地層中合理選用樁型以及指導施工提供了依據。On the similitude artillery, 7 items of shooting tests were proceeded. these items included : muzzle velocity of projectile, pressure of gases, recoil force, efficiency of muzzle brake, muzzle shockwave, dynamic stress, stability
在模型炮上進行了7個射擊實驗項目，實驗項目包括：初速、膛壓、后坐阻力、炮口制退器效率、炮口沖擊波、動態應力、穩定性。This paper discusses the performance and working principle of pressure feedback controlled hydraulic taming and drawing equipment and puts forward that with the shock pressure changing reasonably according to the resistance, the shock energy and frequency can change independently and steplessly
摘要對壓力回饋控制液壓夯拔裝置的性能和機理進行了分析，提出了針對立柱阻力適時調節系統的沖擊壓力，可實現沖擊能和沖擊頻率的獨立無級調節。Abstract : the design of a reverse recoil mechanism of naval gun, i. e the groove hydraulic buffer, was discussed. the hydraulic resistance formula was derived and the method for paremeter selection was put forward. the recoil distance is about 28 % shorter than the original one
文摘:討論了艦炮的一種反后坐裝置，即溝槽式液壓緩沖器的設計問題，通過推導液壓阻力公式，給出了縮短緩沖引程的有關參數選擇及設計方法，使后坐行程比原來一段式縮短28 %左右When the inlet valve opens, a pressure pulse is generated in the air inlet pipe, which is damped as the piston continues to move. when the inlet valve closes, another pressure pulse of certain duration is generated, thus giving rise to a periodic inlet noise
當進氣門開啟時，在進氣管中產生一個壓力脈沖，而隨著活塞的繼續運動，它受到阻尼；當進氣門關閉時，同樣產生一個有一定持續時間的壓力脈沖。The load method of the system is that installing a throttle ahead of a proportional overflow valve, and the throttle can prevent the effect of the pressure impulsion upon sensors and meters
本論文所述系統的加載方法是在比例溢流閥前裝一個節流閥，利用節流閥來阻止溢流閥產生的壓力沖擊對傳感器及儀表的影響。Cour and silting characteristics of debris flows - because of resistance decrease due to supernormal pore water pressure, intermittent debris flows can be accelerated on mild slope in the superimposable processes of several debris flows
?泥石流的沖淤變化特性?泥石流多陣迭加過程中出現超載孔隙水壓力使龍頭阻力降低，在緩坡上能夠加速運動，說明泥石流龍頭迭加具有加速效應。Therefore, interlayer toughened composites are the excellent candidate materials for primary structure of aircrafts. in this paper, composites modified with particle - interlayer were fabricated. based on the aims of improving compression strength after impact ( cai ) and evaluate damage resistance and damage tolerance, mode ii fracture toughness test and quasi - static indentation test ( qsi ) were conducted
本文採用層間顆粒增韌技術制備試驗件，基於提高沖擊后壓縮強度（ cai ）和考察損傷阻抗、損傷容限的目的，試驗測試了型層間斷裂韌性g _ （ c ） 、準靜壓痕（ qsi ）試驗的分層起始能量和接觸力?凹坑深度關系。分享友人