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- The identification of flutter derivatives for bridge sectional model has long been a key issue in long-span bridge flutter and buffeting analysis. 橋梁斷面顫振導數識別問(wèn)題可轉化為最小二乘優(yōu)化問(wèn)題,提出了梯度下降算法求解該優(yōu)化問(wèn)題,提取橋梁主梁斷面18個(gè)顫振導數。
- Secondly, a systematic formulation as well as its computational algorithm for bridge flutter and buffeting analyses which is featured by finite element method is presented. 其次，介紹了基于有限元模型用于求解大跨度橋梁顫振和抖振問(wèn)題的理論模式體系及全橋三維風(fēng)振分析方法；
- RELIABILITY ANALYSIS OF BRIDGE FLUTTER UNDER STOCHASTIC WIND LOADING 隨機風(fēng)荷載作用下的橋梁顫振可靠性分析
- Mother is all of a flutter because of thunder and lightning. 由于電閃雷鳴，媽媽感到十分不安。
- And the suspension bridge from hanging vines. 懸索橋受到了懸掛著(zhù)的藤的啟發(fā)。
- Uniform Identification Theory of Bridge Flutter Derivatives under Smooth Flow and Turbulent Flow 橋梁顫振氣動(dòng)導數在均勻流與紊流作用下的統一辨識理論研究
- The frail wooden bridge cracked. 這座不牢固的木橋斷裂了。
- I have not the least idea about how to play bridge. 我一點(diǎn)兒不知道怎樣打橋牌。
- As the day was wet we stopped in and played bridge. 由于下雨，我們沒(méi)出去，在家打橋牌。
- I think I'm lost; I can't find the bridge. 我想我是迷路了，我找不到那座橋了。
- The old bridge gave away by the recent flood. 最近一場(chǎng)洪水沖坍了那座舊橋。
- They unfurled the flag and let it flutter in the wind. 他們將旗展開(kāi)讓其迎風(fēng)招展。
- The car rushed at the bridge at astonishing speed. 汽車(chē)以驚人的速度向橋沖過(guò)去。
- That TV play caused a mild flutter among the viewers. 那出電視劇在觀(guān)眾中稍稍引起轟動(dòng)。
- Politeness will bridge over many difficulties. 舉止文雅會(huì )使你渡過(guò)許多難關(guān)。
- There was a flutter of wings among the trees. 樹(shù)林里響起一陣飛鳥(niǎo)的拍翅聲。
- Sometimes they played bridge together. 有時(shí)他們在一起打橋牌。
- It's a bridge of steel framework. 那是座鋼鐵結構的橋梁。
- The bridge is now open to traffic. 這座橋現在可以通行。
- Henry is a past master at bridge. 亨利是打橋牌的高手。
