環翼機 的英文怎麼說
中文拼音 [huányìjī]
環翼機
英文
aircraft; annular-wing-
A handling party rushed forward and grabbed hold of special toggles on the trailing edges of the wings.
一群地勤人員沖向前去，抓住了機翼后緣上的特殊套環。The dynamo runs at rull speed to drive main shaft, then the main shaft makes the emulsifying wings in emulsification grove rotate, which absorbs the liquid in its brand groove into ring groove through guide vanes on upper and lower sides of the groove. the vanes spins circularly at high speed with the main shatf as center, and the blade and emulsificaton groove cut and crush it continuously. after that. it gers squeezed by the vanes highspeed centrifugal rotation. at last, it finishes isotropt emulsification tratment within extremely short time after continuous circulating mixing
由電動機全速運轉帶動主軸，經主軸轉動乳化框槽內之乳化翼片，使其將桶槽內之液體經框槽上、下兩側之導流葉片吸入環狀框槽內，經以主軸為中心高速圓周旋轉葉片；連續使乳化翼端刀面與乳化框間極小之間系高頻率之強力切割剪斷、粉碎，再借葉片高速離心旋轉排擠，持續循環混合，以極短之時間即可完成均質乳化之處理。Pitch control system consist of three channels which is formed by three drive units. base on need of bench, drive system scheme is designed. single channel three - loop position servo system which is formed by linear motor is simulated. then kinetic behavior of rotor and system ’ s force coupling relation is analyzed. a compensation method for dynamic load which is caused by rotor rotation is presented base on structure - invarient theory
根據實驗臺的技術要求，設計了整個驅動系統方案。對由直線電機構成的單通道三環位置伺服系統進行了設計和模擬。分析了旋翼運動的動力學特性、系統力耦合關系，並根據結構不變性原理對由旋翼運動產生的動態載荷提出了補償方法。Abstract : approximate methods for calculating aerodynamic heating rates on space shuttles are discussed. various methods are given for predicting the heating rate at axisymmetric stagnation points, general three dimensional stagnationpoints and the leading edge stagnation point of wings. numerous laminar and turbulent heating techniques for flat plates and cones are analyzed and compared. a brief review of some methods is presented to predict heating rate for winward centerline and lateral direction off the symmetry plane. the results show that the methods are simpler and can guarantee enought precision for predicting aerodynamic heating environment of space shuttles
文摘:介紹了國內外預測航天飛機氣動加熱的工程計算方法.給出了軸對稱、非軸對稱和機翼前緣等各種外形駐點熱流密度的計算，分析和比較了平板、錐體的層流和湍流熱流密度計算的各種方法，概述了航天飛機迎風面中心線和離開中心線橫向熱流密度的計算.計算結果表明，本文方法用在航天飛機氣動熱環境初步設計中比較簡單並且有足夠精度The effects of the slipstream boundary are solved by the slipstream boundary condition met using the so - called vortex image method. based on these considerations, the change in the circulation around the wing is obtained, and the velocities induced by the original vortices and the imaged vortices at the wing are subsequently derived. the present research also gives an analytical expression of the drag change due to the slipstream interference
對于滑流邊界的影響，用「鏡像法」來使滑流邊界條件得到滿足，導出了由於滑流影響機翼環量的改變，求得渦及其鏡像在機翼處的誘導，並首次導出了螺旋槳滑流對機翼阻力特性的影響的解析表達式。The dissertation presents the combined theoretical, numerical and experimental studies on the experimental modeling of the actuator, the design of test rig and control system, the modeling of two - dimensional airfoil aeroelastic system, the control design of active flutter suppression, and the effect of group delay in the digital filter on the stability of aeroelastic closed - loop system
本文通過理論分析、數值模擬與風洞實驗相結合的方法，研究了超聲電機作動器建模、翼段顫振實驗裝置和控制系統設計、二維翼段氣動彈性系統建模、顫振抑制控制律設計以及數字濾波器群時延對顫振抑制閉環系統穩定性影響等問題。The main technological characteristics include not only the integrated optimizing design of variable speed and constant frequency, ensuring the wind turbines to adapt to diversified wind plants with different temperatures and geographical conditions, but also the maximum wind power captured at optimized tip speed ratio below the rated wind speed and security protection of constant power output above the rated wind speed by variable pitch regulation
主要技術特點是整體綜合優化設計、變速恆頻運行、適合不同氣候特點和地理環境的風電場；風機全翼展變漿距功率調節、額定風速以下最佳變速比運行最大風能捕獲、額定風速以上恆功率輸出具有安全保護功能。For chinese securities corporation, risk management is a more weaker section and a currently important subject. in asia finance crisis in 1997, bankruptcy of san yi securities and wing - broken of peregrine as well as big dropping of chinese securities market give a risk management lesson to chinese securities corporation in 2001. our securities corporation, begins to place risk management at an unprecedented level in succession
對我國證券公司而言，內部風險管理是當前的一個薄弱環節，也是一個重要課題。 1997年亞洲金融危機，山一證券破產、百富勤折翼， 2001年證券市場大調整給了我國證券公司風險管理一個深刻教訓，國內證券公司開始把內部風險管理工作提到前所未有高度。During last august september and february to april this year, the gfs pilots flew at scheduled times in a twin - engined jetstream j - 41 fixed wing aircraft around lantau island to collect wind and temperature data for the hko
在去年8 9月及今年2至4月，每星期政府飛行服務隊均安排一架雙引擎捷流式定翼機環繞大嶼山飛行，為天文臺搜集風和溫度數據。During last august & september and february to april this year, the gfs pilots flew at scheduled times in a twin - engined jetstream j - 41 fixed wing aircraft around lantau island to collect wind and temperature data for the hko. with these data, we can better understand terrain - induced windshear around the airport
在去年8 、 9月及今年2至4月，每星期政府飛行服務隊均安排一架雙引擎捷流式定翼機環繞大嶼山飛行，為天文臺搜集風和溫度數據。Secondly, the environment, under that the helicopter flies and airborne weapon is launched, is analyzed. probe into helicopter wing wave produce wash and flow field tentatively
然後，分析了直升機運動和機載武器發射的環境，初步探討了直升機旋翼揮舞產生的洗流流場。Abstract : the review presents the recent status and achievements on numerical simulation studies of solid rocket motor chamber internal flow field from three aspects, including numerical analysis of internal flow during the ignition transient period, fin - slot flows in solid rocket motor, and calculation of particle trajectories and slag deposition. it also puts forward the focal points of research on numerical simulation of solid rocket motor chamber internal flow field in our country
文摘:從三個方面介紹了固體火箭發動機燃燒室內流場數值模擬研究的現狀及取得的成果，包括發動機點火傳播及起動過程的數值研究，翼環槽內流場研究和粒子軌跡、熔渣計算，並對我國開展此項研究的重點提出了建議。分享友人