wind ratio 中文意思是什麼
wind ratio
解釋
卷繞圈數-
In recent years at iron - making plant of pangang, the coke ratio of pig iron has reduced evidently by insisting on “ burden preparation ” course, improving quality of sinter, raising wind temperature, increasing rich oxygen quantity and injecting abundant pulverized coal into bf. the solid fuel consumption of sinter has been decreased greatly through insisting on using high - quality calces, practising high feed sintering, actualizing many techniques in solving key problems. at the same time, the energy source base management has been strengthened, and energy - saving work has made great progress, profits generated by energy - saving have exceeded a hundred million yuan
近年煉鐵廠通過堅持「精料」方針，改善燒結礦質量，提高風溫，增大富氧，實施大噴煤，使入爐焦比有明顯下降；燒結堅持用好生石灰，推行厚料層燒結，實施多項技術攻關，固體燃耗大幅度下降；同時加強能源基礎管理，節能工作取得長足進步，節能創效益1億元以上。 -
In the vscf system, the tip - speed ratio of wind turbine is almost retained at a constant value during a wide range of wind speed, which can improve the efficiency and stabilization of the system. it also can be connected to the grid without any voltaic strike
交流電機變速恆頻風力發電系統是20世紀70年代中後期以後逐漸發展起來的一種新型發電系統，變速恆頻風力發電技術因其高效性和實用性正受到國內外越來越多的重視。 -
Our research obtains absolute fluent incipience and general incipience information of sand thickness field and velocity field. firstly proposed a conclusion that the ratio of incipient efficiency on fluent and general incipience varies with wind speed
本文分析了純流體起動和綜合起動條件下沙粒的濃度場和速度場信息，發現了兩種起動的效能比隨風速的變化關系。 -
Effect of atmospheric back - scattering ratio on measurement of wind velocity
大氣後向散射比對風速測量的影響 -
From the situ - observation data of shallow and deep water regions at the coastal zone, it is shown statistically that the occurrency of the coupled ocean waves is more than those of the wind - induced waves and swell. the ratio of the coupled ocean waves at the yangtse river estuary ( especially at shallow sea region ) is nearby 70 % of all the ocean waves, for instance at the observation station dajishan
近岸（淺水）波浪測站和深水的波浪觀測資料統計表明，混合浪的出現均大於純風浪和純涌浪，特別在淺水區域，例如大戟山海洋站，混和浪所佔的比率接近70 。 -
Then a self - searching optimal control method for enhancing thermal efficiency is obtained through the optimal wind - coal ratio. then a computer control system for economic combustion in coal - fired boiler is designed
通過實現燃煤鍋爐最佳風煤比，得出提高鍋爐熱效率的自尋優控制方案，設計出了用於燃煤鍋爐經濟燃燒的計算機控制系統。 -
This system finished supervisory control of boiler burning, sampled signals through sensors and calculated the signals whether reached the best content of oxygen and the best wind - coal ratio. using it controls the quantity of coal, entering wind and sending wing for reaching the best thermal efficiency of burning and improving economy benefit of boiler running
系統對鍋爐燃燒進行監控，通過傳感器采樣信號，計算是否達到最佳含氧量、最佳風煤比，來控制給煤量、引風量和送風量，使燃燒達到最佳熱效率和提高鍋爐運行的經濟效益。 -
When the underground water is used, its energy - efficiency ratio can reach higher than 5, which will save 40 70 operational cost compared with a common wind cooling combination
採用地下水時，能效比達到5以上，比普通風冷機組節省運行費用40 70 。 -
The rules obtained from the background modal analysis method based on the quasi - steady assumption in frequency - domain are similar to those obtained by the analysis method in time - domain, and the influence of high modes can be considered. finally, the dissertation suggests that for engineering design, it is better to use equivalent wind load factor defined the ratio of wind - induced total displacement to static displacement for computing the equivalent static wind load of long - span grid roof structures, and the equivalent wind load factor of the roof of taizhou stadium is calculated
最後通過對大跨網架屋蓋結構的風振系數的研究，提出了在實際工程設計中，採用位移風振系數來計算大跨屋蓋的等效靜力風荷載既正確又方便使用，並且給出了臺州體育中心看臺屋蓋進行分塊統計后的位移風振系數，以供設計參考。 -
Some characteristics of the measured wind pressure field were discussed, including distributions of wind pressure, the effects of shape ratio on total wind force coefficients, auto - and cross - power spectral density ( psd ) distributions of fluctuating wind pressure, characteristics of the proper orthogonal decomposition ( pod ) results of the measured wind pressure field, effects of reynolds number on wind pressure distributions, etc
根據測量結果對殼體表面風壓場特性進行了分析，包括風壓系數、整體風力系數、脈動風壓自功率譜及互功率譜、風壓場本徵正交分解特性、雷諾數對殼體表面風壓分佈的影響等。 -
It is no effect on a sidewall compression inlet ' s starting characteristics while a starting sidewall compression inlet is moved cowl to increase interior contraction ratio appropriately. back pressure effect on characteristics of self - starting for hypersonic sidewall compression inlet is tested in mach 3. 85 wind tunnel. the hypersonic sidewall compression inlet with interior contraction ratio 1. 24 can self - start. unstart hypersonic sidewall compression inlet caused by high back pressure can self - start by moving cowl to decrease interior contraction ratio
最後，實驗研究了反壓對側壓式進氣道自起動特性的影響，內收縮比1 . 24的側壓式進氣道可以實現自起動並且實驗驗證了由於反壓過高而不起動的側壓式進氣道，通過移動唇口板以減小內收縮比可以實現側壓式進氣道的自起動。 -
In this paper, in order to find the approaches to reduce the drag levels and enhance the lift - drag ratio for grid fin, the aerodynamic characteristics of the grid fin are calculated with tvd finite volume scheme and wind tunnel tests. according to the complex flow field, a curve - long parameter grid generation technique is applied, and the density of the grid is processed
為適應復雜流場的數值計算，對網格生成方法進行了研究，採用弧長網格生成法進行貼體網格生成，並對網格進行了加密處理，使物面附近網格盡量密些，而在遠場使網格盡量稀疏些。 -
After calculated the wind response of high - rise building with suspension structural system, damping ratio and vibration patterns are changed and different results will be obtained. combing the vibration characteristic of structure, the reason that outcome is different is interpreted
具體計算高層懸掛結構頻域內的風振響應，改變結構阻尼比及參加計算的振型，得到各種不同情況下的風振響應，結合結構的自振特性，分析各種響應的特點及各自的產生原因，得出有用結論。 -
For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation
數值模擬採用fluent軟體，計算結果用excel進行處理，通過對大量數值工況進行數值模擬計算，結果表明：對于單側百葉風口，計算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論計算值中定義為流體流經百葉風口內部時的速度，即有效速度，而工程上常使用流體的來流速度來計算，計算表明，的理論計算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小，壓力損失越小、出口速度越小；因此在要求進口風速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉風口；在要求進口風速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大，壓力損失越大，出口速度越小，計算表明，鑒于壓力損失、出口風速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在計算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。 -
In order to research the aerodynamic characteristics of grid fins effected by width to length ratio, the grid fins of three hight to width ratios were adapted in wind tunnel experiments at subsonic, transonic and supersonic speeds
為研究它對柵格翼氣動特性的影響規律，本研究採用風洞實驗的方法對3種不同格寬翼弦比的柵格翼在亞、跨、超聲速3個馬赫數下進行了氣動特性的研究。 -
Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下，並考慮風荷載組合，分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系，通過改變結構參數，運用空間有限元方法，進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ，以及「構件內力」 。結果表明:在等面積原則下，異型柱代換矩形柱后，結構剛度增大，側向位移明顯減小，地震反應力略有增加，框架柱軸壓比最大增幅小於8 % ，結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時，結構有利於抗震;水平地震作用力與整體坐標夾角為0度時，結構地震作用效應較大，屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐，側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小，構件內力增大適中，是一種抗震性能優越的結構體系:在抗震設防烈度較高地區（ 8度）和抗震不利的建築場地（ m類場地） ，採用異型柱結構體系時，應盡可能減輕結構自重，降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算，兩種方法所得結果基本一致。 -
Abstract : based on analyzing the mechanism of fraction for anti - extraction soil by using the results of in - side model test about wind - borned sand deposit foundation, three stressing process of the ultimate bearing capacity in soil is given, and the basic formual for anti - extraction capacily calculation is established. compared with other methods at present, the accuracy of the calculation result is several times over that of others. because the scope of application isn ' t limited by width - to - depth ratio, it is very convenient for widely application
文摘:利用風積砂地基抗拔室內模型試驗資料，通過對抗拔土體破壞機理的全面分析，提出了土體形成極限承載力的三個受力過程，建立了擴展基礎抗拔承載力計算的基本公式，與目前其它計算方法比較，成果精度提高很多倍，而且適用范圍不受深寬比限制，便於推廣應用。 -
In this paper, three - tower building with name of oriental tunes square in xiamen is analyzed by the international current program sap2000, considering seismic action in two directions. by structural modeling and calculation, the characteristic of vibration of the multi - tower structure is analyzed, the influences of the rigid ratio of the enlarged base to top tower and translation - torsion coupled effects among several towers are investigated, the inter - story displacement, displacement of the top tower and deformation of tower ' s base floor in x and y major orientation under earthquake action are contrasted with those under wind load. at last, the distributing characteristics of stress of transfer plate and of the normal, shearing stress of mostly vertical elements under earthquake action are studied
本文以具有3個塔樓的廈門東方時代廣場為分析對象，採用國際通用有限元分析軟體sap2000進行結構建模和分析，考慮雙向地震動輸入，研究結構的振動特性，分析底盤與塔樓剛度比對結構的影響以及多塔之間的扭轉效應和平扭耦聯作用，對比風荷載和地震作用下塔樓在兩個結構主軸方向的層間位移、頂點位移以及塔樓底層的變形，分析地震作用下轉換層樓板的應力分佈特點及主要豎向構件的正應力和剪應力分佈特點。 -
Moreover, oxygen detector is suggested to the system structure, which can control the second wind pump to control the ratio of wind and fuel
此外，在原有系統結構的基礎上，增加了煙道含氧量檢測，根據煙道含氧量來控制二次風機以達到最佳空燃比。 -
Under different wind speed conditions, the dispersion characteristics of vehicular pollutant within a single driveway street canyon of 3 : 1 ratio of high to width were studied, and the effect of the position and intension of pollutant line source on the distribution and the dispersion of vehicular pollutant within a double driveway street canyon of 3 : 2 ratio of high to width were discussed
對不同風速條件下高寬比為3 : 1的單車道街道峽谷內的機動車排氣污染物的擴散規律進行了研究；討論了在街道高寬比為3 : 2的雙車道街道峽谷內，污染源的位置及強度對街道內機動車排氣污染物分佈及擴散的影響。
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