pressure beam 中文意思是什麼
pressure beam
解釋
緊壓棍-
Probe into the construction of the underwater collar beam of the high - pressure jet grouting pile
高壓旋噴樁施工水下系梁的探討 -
This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time
該鉆機採用曲柄連桿、游梁式沖擊機構，使鉆機具有兩種沖擊功能;正常鉆進以連桿沖擊為主，遇到特殊情況，用連桿沖擊不能鉆進時，可轉為卷揚沖擊，沖程可調，因連桿沖擊機構連續工作，所以實現了自動沖擊鉆進，可提高鉆進效率，減輕勞動強度;採用泵吸反循環的方式排渣，既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難，又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構，既保證了鉆具處于平衡狀態，又大大簡化了該機構設計，降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起立，減少了輔助作業時間。 -
Laser, ultrasonic beam and microwave are used in non contacting level measuring systems. laser systems suffer from dirt, ultrasonic sensors are strongly affected by changes of the velocity of sound and usually a pipe is needed to couple the ultrasonic waves into the liquid tank, which is difficult when there is a high pressure or when explosion protection is necessary
壓力式液位測量系統原理簡單、成本低，但測量精度和應用場合有一定的局限性，超聲液位儀精度較高，但設備復雜，一般需要用導管將超聲波傳到被測的液體中，因而安裝維護較麻煩，激光測距系統對環境要求嚴格。 -
Abstract : in this paper ， the problems in collecting data of earth pressure are discussed on the basis of some real projects according to the author ， the present way ， in which earth pressure data are calculated completely from classics theory ， is not practical a nonlinear method of row pile design ， in which the cooperative action of ring beam are taken into account and the lateral pressure is calculated on the basis of the pressure of displacement earth are proposed
文摘:本文從實例著手，分析了在土壓力取值上存在的問題，目前工程中完全按經典理論進行套算是不確切的;提出了排樁設計中應定量考慮圈樑的協同作用，側壓力按位移土壓力進行計算的非線形方法。 -
In the hogging condition, double bottom and the side shell remain the ultimate bucking strength, deck and upperwing tank remain the yield stress, and the other parts keep elasticity. then the key to calculate the ultimate strength of ship hull girders is to ascertain the ultimate bucking strength of the stiffened panels. in this regard, the developed formulation is designed to be more sophisticated than previous simplified theoretical method for calculating the ultimate strength of stiffened panels under combined in - plane bending and lateral pressure. fabricatio n - related initial imperfections ( initial deflections and residual stresses ) are included in the panel ultimate strength calculation as parameters of influence. all possible collapse modes involed in collapse of stiffened panels, including overall buckling collapse, column or beam - column type collapse, tripping of stiffeners and local bukling of stiffened web are considered
確定了船體梁整體破壞時的剖面應力分佈之後，關鍵在於確定板架的極限屈曲強度。本文充分考慮了在縱向彎曲、橫向壓力作用下加筋板可能發生的幾種破壞模式，即板架的整體屈曲破壞、樑柱形式的破壞、筋的側傾、腹板的屈曲並同時考慮了初始焊接殘余應力、初撓度的影響，使其更精確的計算加筋板的屈曲強度。對于加筋板中加強筋腹板的局部屈曲，採用解析法推導出筋的腹板的撓度方程及其邊界條件，求解相應的方程，從而計算出腹板的局部屈曲應力。 -
On the long working step, internal force of beam - on - foundation can be calculated as inverse continuous beam on cutting slope surface operated by slope pressure with linear distribution
在工作階段，可直接按倒扣于坡面上的連續梁來計算地梁內力。 -
The gas pressure is adjusted so as to balance the beam.
通過調整氣體的壓力可以使天平橫梁平衡。 -
The results show : laser beam far field intensity distribution deflect to the wave length increasing direction, the influence to laser beam far field intensity distribution of different inflow mach number is little than the influence of different inflow pressure ; flow field has more aberration to 1. 315um laser beam than to 10. 6um laser beam
研究表明激光束遠場強度分佈都向流場光程增大的方向偏折，噴流出口馬赫數的變化對激光束遠場強度分佈的影響較小，噴流出口壓力的變化對激光束遠場強度分佈的影響較強；在相同的流場結構下，流場對波長1 . 315 m激光束的干擾要明顯強于對波長10 . 6 m激光束的干擾。 -
Fabrication of the box beam is divided into such parts as reinforcement, formwork, concreting, prestressing, moving and storing of beam, pipe grouting under pressure, end sealing of the beam, water - proof layer on the bridge surface system, protective coating etc. the paper makes description of effective box beam construction technology and workmanship which can be adopted in other projects, such technologies as : manufacturing and fixing of reinforcement, steel reinforcement fixing baseplate, web plate and top plate respectively and lifting the steel skeleton into form, requirements of design and manufacturing and way of utilization for dismantling - erection type formwork and hydraulic formwork, optimization of concrete ratio, concrete pouring process of two ends of beam in priority over the middle, in sequence of first baseplate followed by web plate and top plate at last, concrete pouring in inclined section and in horizontal layer, concrete vibration mainly by external vibrator in assistance with internal vibrator, methods and regulation for steam curing of concrete, dual controls over stress and strain to ensure quality of prestressing workmanship, construction method of effective beam moving by heavy - weight special moving facility, some regulations and key notes about construction of grouting under pressure, beam ends sealing, water - proof layer on the bridge surface system, protective coating
箱梁製造由鋼筋工程、模板工程、混凝土工程、預應力工程、移存梁工程、孔道壓漿工程、梁體封端工程、橋面防水層和保護層工程等施工環節組成。文中介紹的採用胎具製作和綁扎鋼筋，分底腹板和頂板分別綁扎並吊裝鋼筋骨架入模；拆裝式和液壓式兩種模板的設計、製作要求和使用方法；綜合考慮、優化混凝土配合比，混凝土灌注從兩端至中間、先底板、后腹板、再頂板的施工順序和斜向分段、腹板水平分層、附著式振搗為主、插入式搗固為輔的施工工藝，蒸汽養護的方法和規定；應力應變雙控制確保預應力施工質量的施工技術；採用重物移運器有效移梁的施工方法；壓漿、封端、橋面防水層和保護層施工的一些規定和注意事項等都是對箱梁製造行之有效的施工技術和施工方法，並可為以後類似施工作借鑒。 -
As regards to the spheric thin shell structure under external hydro static pressure, basing on flat - plate theory and by using basic von karman equations for large deflection, the equilibrium problem of axisymmetric bending of the spheric shell under uniform external pressure is simplified to an equilibrium problem of bending of elastic basic flat - plate and further converted into an equilibrium problem of beam on elastic fundation taking into consideration of the deformation characteristics
對球形薄殼結構隨靜水外壓的情況，應用平板理論中的vonkarman大撓度基本方程，將球形薄殼在均勻外壓下的軸對稱彎曲平衡問題簡化為彈性基礎平板的彎曲平衡問題，進而再根據變形特點將其轉化為彈性基礎梁的復雜彎曲平衡問題。 -
In order to predict high - strength bolts pretension and contact - friction in contact zone, status nonlinear in contact zone is adopted in fem model. the computation and analysis on the behavior of beam - to - column rigidity joints subjected to constant axial pressure on the top of column and cyclical load at tip of beam is carried out
實體模型的建立，考慮了接觸區的狀態非線性，以模擬高強螺栓的預拉力、螺栓連接區的摩擦接觸，對承受軸力的樑柱剛性連接方式在循環荷載作用下的滯回性能進行了計算分析。 -
Secondly, the paper analyzed the behavior of isotropic and orthogonal anisotropic materials " cws on the basis of above theory and software. regularities of cws " deformation inner force and shared load and earth pressure in excavating stage and driving stage were gained. regularities influenced by material features top beam excavating depth sidewall depth properties of soil layers rear backing and location of load were also obtained, especially rules of display degree exerted by circular and vertical loads were also obtained
通過分析，得到了形成階段及頂進階段圓形工作井的變位、結構內力、分載及土壓的分佈規律及材料性質、頂冠梁及圍檁、開挖深度、井壁插深、土層性質、后靠背、頂載作用位置等因素對結構受力性狀的影響規律，特別是得到了工作井在受力時結構環向與豎向承載作用發揮程度的規律。 -
The main conclusions and original results are summarized as follows. the manganin ultra - high pressure sensors for gas gun were made by two - step thin film techniques, namely, manganin thin films were first deposited by magnetron sputtering on fused silica substrates, and then covered by a layer of sio2 thin films by electron beam evaporation. consequently, the manganin sensing elements were " cleanly " encapsulated in inorganic solid matrix and the high - pressure shunt effect was eliminated radically
上述技術的主要優點在於可以採用高壓絕緣性能更好的無機物作為絕緣封裝材料，如本研究中所採用的sio2 ，而代替在箔式錳銅計中所使用的ptfe ；並可實現敏感元件「清潔」地無機固態封裝，即將整個敏感元件是包封在無機物中，而不與高壓力下絕緣性能相對較差的有機物，如粘接劑、樹脂等直接接觸，從而在根本上消除了高壓旁路效應。 -
The approaches of enhancing the mechanical properties of ramie and flax composites were studied in this paper. the effects of surface pretreatment, fiber content, molding temperature and pressure as well as the effect of electron beam, microwave and ultrasonic wave on the mechanical properties of the composites were explored. the experimental results show that : 1
本文以苎麻、亞麻纖維為增強材料，線性低密度聚乙烯（ lldpe ）為基體，研製了兩種麻纖維層壓復合材料，研究了麻織物表面處理、纖維含量、成型溫度、成型壓力等對該復合材料力學性能的影響，得到了性能較為優異的麻纖維復合材料，探討了復合材料的增強機理。 -
Liquid helium cryocondensation pump has great advantages in large pumping speed, working pressure range and high ultimate pressure, etc. it ' s more excellent than any other vacuum pump. it can meet the vacuum requirement of nbi and can improve the transportation efficiency. the development of neutral beam injection ( nbi ) system in the world, the structure of nbi system used on the ht - 7 device of asipp was introduced in the thesis
液氦低溫冷凝泵是利用低溫面對氣體有強吸附能力的原理，實現抽氣的真空獲得設備，它具有抽速大、工作壓強范圍寬、極限真空度高等一系列優點，是普通真空設備無法比擬的，作為中性束注入系統的主抽泵，它能滿足中性束注入系統對大抽速的要求，提高中性束的傳輸效率。 -
Electron gun is the foremost parts of twt, it can produce electron beam with a certain shape and current, in order to guarantee the reliability and security of work, it ’ s design have to meet to the requirement not only of electric parameter, but also all kinds of subsidiary characteristics such as filament pyrogenation efficiency, warm up time, shape size, pole space capacitance and the ability to be able to bear the press and all kinds of rigorous run conditions such as high temperature, high humidity, low air pressure, strong vibration and great strike
由於行波管的大功率和高頻率等特性，目前還沒有任何其他的器件可以代替。行波管是應用高頻電磁場與電子注進行互作用的機理進行工作的，而電子槍是行波管中產生電子注並使它成型的基本部件，電子槍的結構設計決定了槍體自身必須具有良好的抗振可靠性，否則結構發生共振或振動位移過量，就會導致行波管的失效。因此對行波管電子槍的研究具有非常重要的意義。 -
A design of using lpcvd silicon - rich silicon nitride of low residual stress as the resonant beam is proposed based on technology of sacrificial porous silicon and a new type peninsula structure is also proposed for high pressure sensitivity
提出了基於多孔硅犧牲層技術的利用lpcvd生長的低應力厚的富硅氮化硅作為諧振梁的壓力傳感器結構設計。為了提高靈敏度，還提出了一種半島結構。 -
Based on comparison of several technical schemes, the method of sand bedding pre - elevating and step water - filling pre - compressing is adopted. so the dissertation is consist of two parts : ( 1 ) the applicability study for the method of sand bedding pre - elevating and step water - filling pre - compressing, including numerical analyses for the thickness of sand bedding, the consolidation, settlement and stability of foundation, drainage, possibility of foundation liquefaction under seismic loading, et al. ( 2 ) monitoring at construction stage and checking the effect of foundation treatment, including the measurements of the settlement velocity and non - uniform settlement of ring beam under the tank, pore pressures and horizontal displacements in foundation, the pressure distribution at the bottom of oil tank and the strength increase of soils
通過多種技術方案比較，最終選擇了技術先進的砂墊層預抬高分級充水預壓法，論文工作主要由以下兩部分組成： （ 1 ）砂墊層預抬高分級充水預壓法的適用性研究，其中包括砂墊層厚度、地基沉降與固結度、地基穩定性、降水、地震作用下砂土液化的可能性等方面的計算分析； （ 2 ）施工監測與地基處理效果檢驗，其中包括油罐環梁基礎沉降速率與不均勻沉降程度、各分級充水加載階段地基超靜孔壓與深層水平位移、油罐底板壓力分佈及地基土強度增長等方面的實測與數據分析。 -
This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization
半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的共同作用；臺後土抗力升溫時採用靜止土壓力加彈性土抗力，降溫時採用主動土壓力；分析橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例，採用大型通用軟體ansys建立平面框架模型，進行彈性、大變形分析，模擬全橋受力和變形特點；同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型，通過三種橋型同步加載對比分析，研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能，總結其設計控制因素和構造要求。通過本文研究知：半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近，結構整體剛度增大，併除去了伸縮縫病害；但主梁增加了軸力，下部結構剪力、彎矩較梁式橋大；綜合分析是一種受力合理有實踐和推廣價值的橋型。 -
The article analyzes mainly the relation between pressure distribution of neutralizer and efficiency of neutralize describing neutralized rate of high - energy ion beam in the process of passing neutralizer. then, we accurately analyze pressure distribution in the axis direction of axis of nbi system, especially of pressure distribution curve of neutralizer
主要分析了高能離子束通過中性化室的中性化效率與中性化室內壓強的關系，給出了nbi系統從離子源引出端到托卡馬克裝置入口處的軸線上壓強分佈情況，尤其是中性化室內的壓強分佈曲線。
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