pressure field structure 中文意思是什麼
pressure field structure
解釋
壓力場結構-
After above fifty years of flourish expansion, the domestic seamless steel tube enterprises are now facing many contradictions, such as the unsuitable product category for consumption structure, lagging techniques, weak marketing concept. the competition among the enterprises in this field becomes incandescing etc. the essential characteristic of the market makes the enterprises feel more and more oppressive pressure
國內無縫鋼管產業經過五十余年的蓬勃擴張后，已面臨著品種不能適應消費結構、工藝技術水平落後、市場營銷理念薄弱等諸多矛盾，產業內各生產企業的競爭已進入白熱化。優勝劣汰這一市場經濟的根本特徵使每一個企業感到越來越沉重的壓力。 -
Since the departing process of fire work departing installation is a highly nonlinear transient dynamic process, it relates to many speciality field, and the characteristic of the material is very complex under the highly rate and highly pressure distortion, the design methods and the design formulae by experience which has been used for a long time are very limited, the facter which truly affect the departing process of fire work departing installation cannot been reflected in the design calculation, the structure modelling and optimization of the fire work departing installation is cannot been carried out by the traditional optimization method
由於火工分離裝置的分離解鎖過程是一個高度非線性的瞬態動力過程，涉及多個學科和專業領域，而且材料在高速高壓條件下瞬時性態十分復雜，長期以來所沿用的經驗設計方法和設計經驗公式的局限性很大，對火工分離裝置分離解鎖過程一些實際有影響的因素不能定量地反映到設計計算中來，採用傳統優化方法無法實現火工分離裝置的結構優化建模和計算。 -
The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。 -
Abstract : tight trips often occur for hole undergauge during drilling in east sichuan oilfield. the paper analysis the causes of hole undergauge, proposes preventive and treatment measures which are to optimize design from geologic structure features, to use suitable fluid column pressure, to select different drilling fluid types, to adopt advanced drilling technology and perfect field technical management. therefore, good economic benefit will be obtained
文摘:川東構造在鉆探作業中因井眼縮徑造成起下鉆的阻卡時有發生，文中對造成井眼縮小的原因進行分析並劃分為五類因素，提出應在地質構造特徵方面優化設計，採用合適的液柱壓力，選擇不同的鉆井液類型，使用先進的鉆井工藝和完善現場技術管理等措施進行預防和處理，將取得重大的經濟效益。 -
Through the fem calculation and the analyzing data of the field, the result is that the central wall mainly endures the vertical pressure from the structure transferring and its bending moment is relatively less and its position of the maximum value of the bending moment locates in the joint between the central wall and the steel framework
通過有限元計算和對現場監控量測數據的分析，論文得出：中隔墻主要承受結構傳遞的豎向壓力，彎矩值較小；鋼拱架的軸力以受壓為主，彎矩值在中隔墻上方位置處最大。 -
A series of results are achieved such as fluid field thermal field pressure field and stress field. those results show that sphere target has better heat exchange and convenient fluid structure and that cone target is easy to accepting neutron and has the convergent stress. taking into account the thermal - hydraulic and physics discipline, solid target choose sphere structure but liquid target still should further consider of material study
計算結果表明：圓球靶型散熱快，流道設計方便;錐形靶易於接收中子，但結構易引起應力集中，在綜合熱工、物理兩個角度，固態靶選取圓球型鎢靶比較滿意，液態靶區的計算需要在材料研究的基礎上進行。 -
Water hydraulic pressure servo loading system can be used to execute static presses test, the tired test, the sum settle strength test, the resilience split test, static structure strength test, the structure pieces design experiments among others. it has a very extensive application in the aerospace field
水壓伺服加載系統可用來對負載結構件進行靜力抗壓測試、疲勞測試、額定強度、斷裂韌度、結構靜強度、操作容限設計等試驗，在航空航天領域有著十分廣泛的應用。 -
Study on microseismic monitoring for spatial structure of overlying strata and mining pressure field in longwall face
采場覆巖空間破裂與采動應力場的微震探測研究 -
Based on g - w contact model, two rough surfaces in contact were simplified to a smooth one and a rough one which has regular rectangular asperities, and a three - dimensional transient thermal and stress coupled fem model was established using thermal - structure sequential coupling. the course of the sliding with friction was simulated using the nonlinear multiphysics field fem, meanwhile considering thermal - elastic problems of the two bodies, to calculate and analyze the temperature, contact pressure and stress of the sliding contact surfaces with frictional heating
基於g - w接觸模型，將兩個粗糙表面簡化為一個有規則排列的長方體微凸體的粗糙表面與一光滑表面，利用熱結構順序耦合建立三維瞬態有限元計算模型，考慮兩個物體摩擦接觸的熱彈性問題，採用非線性有限元多物理場來實現，對粗糙表面接觸模型的瞬時摩擦溫度場、壓力場和應力場進行了計算分析。 -
Wp201 202 series isolation transformation module adopts miniature guide way type structure surface packing technique, has a great improved anti - interference ability of module, it can to transform analog signal such as temperature, pressure, flow, displacement, standard voltage and current and so on into isalated with it the standard voltage or current signal output and wide use to fields such as metallurgy, chemical industries, petroleum chemical, papermaking and printing dyeing, brewing, tobacco and aerospace base and so on. it may intuitionally indicates measuring value, can modify the parameter, easy to field debugging and operation
智能給定操作器具有萬能分度號輸入的位式控製表所有特點，自動時測量值與給定值比較，決定操作器輸出的正轉或反轉，雙屏數碼管顯示，上屏顯示測量值，下屏顯示給定值，手動時由按鍵操作決定正轉或反轉開關量輸出，與電動執行機構配合可控制系統的液位或溫度等。
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