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- In such case, the conventional approach of mean wind decomposition is no longer adequate for estimating the flutter critical wind speed of bridges under the skew wind. 對開(kāi)口薄壁斷面、雙主肋斷面的試驗研究發(fā)現，對于具有這種類(lèi)型主梁斷面的橋梁，傳統的法向風(fēng)已不是最不利的工況，需要詳細考慮各種風(fēng)偏角下顫振臨界風(fēng)速，找出最小顫振臨界風(fēng)速，方可偏安全進(jìn)行橋梁設計。
- The variation pattern between flutter critical wind speed of bridge with flat box deck and wind yaw angle is significantly affected by wind attack angle. 扁平箱形截面橋梁的顫振臨界風(fēng)速與風(fēng)偏角的關(guān)系明顯地受到風(fēng)攻角的影響。
- However, in the case of non-zero attack angle, the flat box deck becomes bluff, the variation of its flutter critical wind speed is accordingly undulant as the wind yaw angle increases, and the lowest value will occur generally under skew wind. 而對于非0°風(fēng)攻角的情況，扁平箱形斷面的流線(xiàn)性變差，隨著(zhù)風(fēng)偏角的增加其顫振臨界風(fēng)速呈起伏變化，最低值一般在斜風(fēng)的情況下出現，此時(shí)，傳統的平均風(fēng)分解方法不再適用。
- The numerical analyses of examples show that the galloping critical wind speed of large spatial reticulated structures will be greatly effected if these factors are omitted. 通過(guò)算例結果分析表明，如果忽略來(lái)流攻角和側向氣動(dòng)力，對大跨空間結構的馳振臨界風(fēng)速有較大的影響。
- critical wind speed for vehicle tumover 臨界翻車(chē)風(fēng)速
- Determination of End Restrain and Vibration Critical Wind Speed for Steel Tube Members of Typical Node Structure 典型節點(diǎn)構造鋼管構件的桿端約束與起振臨界風(fēng)速的確定
- Analysis of critical wind speed for running trains on a schemed Yangtze River Bridge at Nanjing on Jing-Hu high speed railway line 京滬高速鐵路南京長(cháng)江斜拉橋方案行車(chē)臨界風(fēng)速分析
- Limit of End Restrain of Steel Tube Pile Joined with Inserted Plate and Flanges and Calculation of Critical Wind Speed for Vibration Starting 插板和法蘭連接鋼管桿端約束界定與起振臨界風(fēng)速計算
- Three stages wind speed control. 三段風(fēng)速控制。
- The wind speed had to be just right. 風(fēng)速必須得恰倒好處才行。
- In an average wind speed 2.0 m / sec. 年平均風(fēng)速為2.;0米/秒。
- critical wind speed 臨界風(fēng)速
- The spring wind speeds the greening of the plants. 春風(fēng)催綠。
- No leakage in the windows under wind speed of 60m/s or 216 km/hr. 風(fēng)速每秒60米(時(shí)速216公里)之風(fēng)力下，玻璃窗沒(méi)有漏水。
- Incline the wind meter to find the maximum wind speed direction. 運用風(fēng)速計去發(fā)現最大風(fēng)速及風(fēng)向。
- Close to the ground, wind speed increases quickly with height. 靠近地面,風(fēng)速隨高度迅速增大。
- DPi, DTi and WIi were dew period, dew temperature and wind speed. DPi，DTi，WIi分別代表露時(shí)、露溫和風(fēng)速。
- They can generate wind speeds faster than 250 mph. 龍卷風(fēng)的風(fēng)速可以超過(guò)時(shí)速二百五十英里。
- Surface roughness has a profound effect on wind speed. 地表粗糙度對風(fēng)速有相當深刻的影響。
- Parameters Sensitivities Analysis of Flutter Critical Velocity of Flat Plates 平板顫振臨界風(fēng)速的參數靈敏度分析
