試驗風洞 的英文怎麼說
中文拼音 [shìyànfēngdòng]
試驗風洞
英文
test air tunnel- 試 : 名詞(古代占卜用的器具) astrolabe
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 風 : Ⅰ名詞1 (空氣流動) wind 2 (風氣; 風俗) practice; atmosphere; custom 3 (景象) scene; view 4 ...
- 洞 : Ⅰ名詞(物體上穿通的或凹入較深的部分; 窟窿; 洞穴) hole; cavity Ⅱ形容詞(深遠; 透徹) profound; thorough; clear
- 試驗 : trial; experiment; test
- 風洞 : [航空] wind tunnel; air tunnel; whirl tube; wind tunnel plant; flume
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The damping derivatives can only be determined experimentally in the wind tunnel or ballistic range.
阻尼導數只能用風洞或彈道試驗來確定。Compressibility effects are investigated with highspeed models in high-speed tunnels.
壓縮性影響需用高速模型在高速風洞中試驗。This text studied the mutually interference influences to the aerodynamic force of irregular shape base on analysis using wind force and wind pressure data of super high buildings model obtained by wind tunnel tests, and provided reference to designer and expurgator on building code
本文以超高層建築剛性模型的高頻天平測力風洞試驗數據和表面測壓風洞試驗數據為依據,研究了復雜外形建築的風力和高層建築相互干擾對風力影響,供設計者及規范修訂時參考。A few balances mounted above the tunnel support the model in an inverted position for "normal" running.
有少數天平安裝在風洞上面,把模型支在倒裝位置上進行「正常」的試驗。The jet engine requires a huge scavenging system sometimes using half as much power as the tunnel itself in order to keep contamination low.
噴氣發動機試驗要求龐大的排氣清除系統,以減輕污染,該系統有時要耗去風洞本身功率一半之多。This paper adopts linear interpolation to deal with data of wind tunnel experiment for sample uav and realizes modeling and simulation of the sample uav with c language in common aerodynamics and moment coefficient
本文採用線性插值處理樣例無人機風洞試驗數據,採用正常情況下的氣動力及力矩系數數學模型,並用c語言實現樣例無人機建模與模擬。A recommend value of appropriate roadbed height is put forward according to the sand dune type and the highway grade, make investigation to the sand harm and other problems of built highways in desert areas gathering the related materials of present day highways, and then make comprehensive and systematic statistics to related data and racious factors which affect the roadbed height ; analy the suitable roadbed height for the windblown sand drift passes through smoothly according to the open country windblown sand field test ; test and verify the outcome according to indoor wind tunnel test ; finally a appropriate recommend roadbed height value will be put forward for different grade highways in different areas, which is according to the analysis of roadbed stability the roadbed height economic analysis and different use requirement to different grade highways
收集現有沙漠公路的有關資料,對全國已建沙漠公路進行沙害及其他病害調查,對相關數據和影響沙漠公路路基高度的各種因素進行綜合系統地統計分析;通過野外風沙流場測定,分析適宜風沙流順利通過的路基高度;通過室內風洞試驗進行驗證;結合路基穩定性分析、路基高度的經濟性分析,考慮不同等級公路的使用要求,最終提出不同地區不同等級沙漠公路路基填土高度的合理高度建議值。The research test of this discussion as follows : making investigation and research to overseas related materials ; make investigation to built highways in desert areas, dozens of routes and nearly 100 road sections have been surveyed, among them two highways have been taken as the chief investigation objects, they are " 210 national highways - first grade highways from bao tou to dong sheng " and " the section of nei meng a la shan meng s307 from shang de to meng gen " ; the relationship between windblown sand drift and the roadred height wind tunnel test ; make investigation to the tested road sections and subengineerings then make statistics and study according to the test outcome ; the stability analysis of different roadbed height ; the analysis of roadbed economy
本課題的研究工作包括:對國外相關資料的調研分析;對已建沙漠地區公路進行調查、觀測了十余條線路,近百段路段,以『 210國道包頭至東勝一級公路』 、 『內蒙阿拉善盟s307尚德至孟根段』為主要調查對象;風沙流路基高度的關系、風洞試驗;對調查路段及依託工程調查、觀測結果統計研究;不同高度下路基穩定性分析;路基經濟性分析;按照沙丘類型及公路等級提出路基合理高度推薦值。Hypersonic propulsion test facility is important for the scramjet ground tests
摘要高超聲速推進風洞是進行超燃沖壓發動機模型地面模擬的重要試驗設備。Both types of tests have been explored in wind tunnels.
這兩種形式的試驗都已在風洞中進行過探索。Any flight test and wind tunnel correlation always suffers from a great number of unknowns.
在對飛行試驗與風洞試驗進行比較時總有大量的未知數。Wind tunnel studies on the behaviour of aeroelastic twin cable model
串列雙索氣彈模型的風洞試驗研究The analysis of the repeated test data shows the maximum deviation of air drag coefficient is less than 0. 88 % and the deviation of the most surface pressure data is within 1 %, it illustrates the test data is reliable
重復試驗的數據分析表明,空氣阻力系數數據的最大偏差小於0 . 88 ,絕大部分測壓試驗數據的偏差均在1以內,這說明客車模型風洞試驗數據的精度較高。It is indicated that the grids generated by the proposed method are simple, high quality and suitable for different building shapes, and the results of numerical simulation agree well those of the wind tunnel test
網格剖分和數值模擬結果表明,採用本文方法生成的網格格式簡單,網格質量高,適應性強,適用於多種體型建築物的模擬計算,並且風場模擬結果與風洞試驗結果有較好的吻合。They enable countries to develop wind - tunnel and jet - propulsion test facilities that are crucial to weapons development, including destroyers, other ships, and fighter aircraft
因為它要求國家進行風洞試驗,噴氣試驗,這些實驗對武器發展都是至關重要的,包括摧毀性武器,艦只和航空器等等。Abstract : based on thestatic wind force factors of a tower and on the root - mean - square of the buffetingdisplacement responses of the tower top, which are measured by wind tunnel tests inlaminar and turbulent field respectively, the static and buffeting internal forces of thetower bottom control sections under its design wind speed are obtained by linearsuperposition method and fem
文摘:基於均勻流和紊流風場中的橋塔模型風洞試驗所測得的橋塔空氣力靜力系數及塔頂抖振響應的位移均方根,採用線性疊加法及有限元法反演,給出設計風速下塔底控制截面的順風向靜風及抖振內力。The tests were conducted in the hypersonic low density wind tunnel at nominal test conditions of mach 16, stagnation temperature 923k, stagnation pressure 1. 40mpa and 7. 30mpa. heat - transfer data were obtained on a hemisphere model, a sharp cone and a big blunt cone respectively by means of infrared thermal mapping techniques, that of a 0. 5mm thickness blunt cone by virtues of thermocouples. furth ermore, heat - transfer on all those models was calculated with the theoretical method
最後在名義m _ = 16 、 t _ 0 = 923k 、 p _ 0 = 1 . 40mpa及7 . 30mpa的高超聲速低密度風洞中,利用紅外熱圖技術獲得了半球圓柱、尖錐、大鈍頭三個模型表面熱流分佈,利用薄壁法技術得到了一壁厚為0 . 5mm的鈍錐模型表面的熱流分佈,並通過工程理論方法計算了模型表面的氣動熱,把理論計算結果與上述試驗結果比較,幾者符合得較好。Hangzhou grand theater ' s main part is 170m long and 136m wide, and the surface of it is consisted of ellipsoidal surface roof and conical surface gladding. based on wind tunnel test and theoretical analysis, the vibration mechanism, vibration shape, dynamic response and wind load factor of long - span combined structure consisted of ellipsoidal surface roof and conical surface gladding subjected to wind excitation are analyzed systematically in this dissertation, and some valuable results are obtained
本文採用風洞模型試驗和計算機數值計算相結合的方法,對杭州大劇院大跨度橢球屋蓋和倒圓錐面幕墻組合結構的風振機理、風振形態、風振響應以及風振系數進行了較系統的研究,取得了有意義的結論。Furthermore, the isoline maps of mean wind pressure coefficients and rms wind pressure coefficients of the structure under various wind directions are plotted. in the matter of theoretical analysis, modeling with finite element method, using the local mean wind pressure coefficients and time history of fluctuating pressures determined in wind tunnel, the wind - induced dynamic responses for long - span grid roof structures are calculated in frequency domain and time domain separately
在理論分析方面,建立合理的有限元模型,利用剛性模型風洞試驗獲得的各種不同情況下屋面各節點的平均風壓系數和脈動風壓時程,在頻域內和時域內進行了大跨網架屋蓋結構的風振響應分析。When it becomes necessary to examine the altitude performance of an aircraft engine, three types of facilities may be usedaltitude wind tunnels, altitude test beds and flying test beds.
當需要考察一臺航空發動機的高空性能時,可以利用三種型式的設備,即高空風洞、高空試驗臺和飛行試驗臺。分享友人