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- Knowledge of performance evaluation, reduction in aerodynamic drag and interference, and wind tunnel testing (Aeronautical). 熟悉風(fēng)機性能評估及風(fēng)洞試驗,降低氣動(dòng)阻力(氣動(dòng)專(zhuān)業(yè));
- The planes survived the wind tunnel test intact. 這些紙飛機在測試風(fēng)道中絲毫未損。
- The aerodynamic drag coefficient of a bus body model is measured in the wind tunnel with the acoustic excitation technique applied. 本文利用內部聲激勵技術(shù),在風(fēng)洞中對某廂式客車(chē)車(chē)身模型進(jìn)行空氣阻力系數的測試。
- Two double head anti symmetric airfoils have been proposed and the wind tunnel tests on their lift and drag performances have been carried out. 本文分析了雙頭車(chē)床控制系統的特點(diǎn),提出了基于單片機構成的嵌入式控制方案,采用步進(jìn)電動(dòng)機實(shí)現對刀具的拖動(dòng)定位,簡(jiǎn)化了控制系統結構。
- Then, the base bleed method is introduced on a general supersonic missile to decrease the base drag of the inlet cowl for the first time and is validated by wind tunnel test. 本文首次將底部排氣法應用于導彈上,結合一種具有常規氣動(dòng)布局的超聲速導彈進(jìn)行了底部排氣方案設計,采用一種“底窩器”來(lái)提高進(jìn)氣道整流罩的底部壓強,并進(jìn)行了風(fēng)洞實(shí)驗驗證。
- It is not correct to think of the wind tunnel having uniform flow. 設想風(fēng)洞具有均勻的氣流是不正確的。
- Setting very low speeds in a wind tunnel is always a vexatious problem. 在風(fēng)洞中調出低風(fēng)速來(lái)始終是一個(gè)麻煩問(wèn)題。
- The paper is base on reference and gives theory method for estimating vertical drag, and for example of one helicopter, lias computed,Obtains a good agree of computing result with main rotor/fuselag wind tunnel lest result. 本文根據參考文獻,給出估算垂向阻力的理論方法,并以某機為例進(jìn)行了計算,計算結果與該機的旋翼/機身組合風(fēng)洞試驗結果相比,獲得了很好的一致。
- It should be noted that a balance is not always required in a wind tunnel. 應該指出,天平對風(fēng)洞來(lái)說(shuō)并非是絕對必須的。
- The aerodynamics characteristics of this airfoil is studied in wind tunnel. 進(jìn)行了翼型的低速氣動(dòng)力性能研究,為附面層特性研究提供了方向。 結果表明,該翼型具有較好的升阻和俯仰特性,但失速特性差。
- The wind tunnel is produced under a technical cooperation agreement with Ford Co of US. 風(fēng)洞機是根據與美國福特公司的技術(shù)合作協(xié)議生產(chǎn)的。
- Any flight test and wind tunnel correlation always suffers from a great number of unknowns. 在對飛行試驗與風(fēng)洞試驗進(jìn)行比較時(shí)總有大量的未知數。
- The experiments were conducted in a wind tunnel at a location 50 ft downwind from the fan. 實(shí)驗是在風(fēng)洞中距離風(fēng)機50英尺處進(jìn)行。
- The damping derivatives can only be determined experimentally in the wind tunnel or ballistic range. 阻尼導數只能用風(fēng)洞或彈道試驗來(lái)確定。
- In the experiment under the 20 m/s wind tunnel conditions, the wind abrasion modulus is almost zero. 在每秒20米的風(fēng)洞實(shí)驗中,吹蝕模數幾乎為零。
- In this paper, the initial stage in application of fuzzy logic to aircraft high-angle-of attack aerodynamics using wind tunnel test data is outlined. 本文概述最初階段利用風(fēng)洞試驗數據應用模糊邏輯研究飛機大攻角空氣動(dòng)力學(xué)的情況。
- In the experiment under the 20 m/s wind tunnel conditions,the wind abrasion modulus is almost zero. 在每秒20米的風(fēng)洞實(shí)驗中,吹蝕模數幾乎為零。
- Both types of tests have been explored in wind tunnels. 這兩種形式的試驗都已在風(fēng)洞中進(jìn)行過(guò)探索。
- NASA and Boeing said data from the flight are already being compared with data from wind tunnel tests. NASA和波音公司的數據說(shuō),從飛行正在與風(fēng)洞試驗數據。
- The design method has successfully solved the problem of design and matching of Swivel Table for Sand-Dirt Wind Tunnel. 所提出的設計方法成功地解決風(fēng)洞轉臺的設計與匹配問(wèn)題,有效地縮短了設計周期。