flutter vi. 1.拍翅振翼;(旗幟)飄揚(yáng)。 2.顫動(dòng),(心)急跳,(脈搏)浮動(dòng)。 3.(心緒)不寧,坐立不安。 4.〔口語(yǔ)〕對(duì)人進(jìn)行測(cè)謊。 He fluttered about the room nervously. 他心緒不寧地在房間里徘回。 vt. 1.振(翼);拍(翅)。 2.擾亂;使不安。 n. 1.振翼;飄揚(yáng)。 2.不安,焦急,波動(dòng)。 3.(身體部分的)病態(tài)陣跳。 4.〔英俚〕投機(jī),小賭。 5.顫振。 6.圖像跳動(dòng),脈沖干擾,放音失真。 7.對(duì)…進(jìn)行測(cè)謊。 the flutter of wings 翅膀的拍動(dòng)。 all in a flutter 心慌意亂。 cause [make] a great flutter 轟動(dòng)一時(shí)。 fall into a flutter 心慌意亂。 in a flutter 心里卜卜跳。 put sb. in [into] a flutter = throw sb. into a flutter 使忐忑不安。 n. -er ,-ingly adv.
be characteristic of 表現(xiàn)了…的特點(diǎn); 具有...的特性, 為...所特有; 具有...特色的; 具有……的特色; 為…所特有,是…的特征
characteristic adj. 有特性的;表示…特性的,…特有的。 Japan's characteristic art 日本特有的藝術(shù)。 n. 特性,特征,性能,特色。 be characteristic of …所獨(dú)有的特征,有…的特色。 characteristic of logarithm 對(duì)數(shù)的首數(shù)。 adv. -cally
characteristic of 表示特性的; 不關(guān)心的; 獨(dú)有的,特有的; 對(duì)…淡漠; 特有的,表示...特性的; 特征是
On comparing flutter characteristics of three supercritical airfoils in transonic flow 超臨界翼型的跨聲速顫振特性研究
The nonlinear panel flutter equations are also solved in time domain . the limit cycle flutter characteristics of nonlinear panel flutter are investigated and the effect of temperature and airflow speed on the nonlinear panel flutter characteristics is studied 通過(guò)對(duì)非線性壁板顫振方程的時(shí)域求解,研究了壁板的極限環(huán)顫振特性,得到了溫度、氣流速度等因素對(duì)非線性壁板顫振特性的影響規(guī)律。
Accurate calculation of aircraft steady and unsteady aerodynamics and flutter characteristics , especially in the transonic speed range is a crucial problem for aircraft designers . it is very important for us to develop an efficient , accurate , robust navier - stokes / euler flow solver that could be used to study transonic steady and unsteady flowfields 飛行器的定常和非定常氣動(dòng)力的準(zhǔn)確數(shù)值求解及顫振特性研究,特別是跨音速范圍內(nèi)的準(zhǔn)確數(shù)值求解及研究,一直以來(lái)都是飛行器設(shè)計(jì)工作者必須面對(duì)的重要研究難題。
At first , the finite element formulation is presented to determine the flutter characteristics of laminated panels at elevated temperature . then both the linear and nonlinear panel flutter characteristics are analyzed . the panel flutter boundaries are finally determined and the effect of temperature , airflow speed , etc , on the panel flutter characteristics is analyzed 為此,本文首先建立了復(fù)合材料壁板熱顫振的有限元模型并對(duì)受熱壁板的線性和非線性顫振特性進(jìn)行了研究;最后確定了壁板的顫振邊界,分析了溫度、來(lái)流速度等因素對(duì)壁板顫振特性的影響規(guī)律。