顫振特性 的英文怎麼說
中文拼音 [zhànzhèntèxìng]
顫振特性
英文
buffet characteristic- 顫 : 顫動詞(發抖) shiver; shudder; tremble
- 振 : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
-
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 aim of this thesis is to analyze the panel flutter mechanism and establish a mechanical model for panel flutter analysis and this work is the basis of panel flutter control studies
本文的目的就是對壁板的熱顫振特性進行系統深入的分析和研究,為高速飛行器的壁板結構的防顫振設計和壁板顫振抑制的研究建立理論基礎。Two kinds of actual blade were tested with this system. the analysis results are just the same as the practical operation. this shows that the numerical flutter analysis system is effective and can be used in the practical engineering problem
利用此系統對實際葉片的顫振特性進行了評估,得到了正確的結果,說明了本文的方法和所建立的系統正確有效,可望在工程實際問題中加以應用。While the flutter self - excited loads of a bluff section has a quality of obvious nonlinearity. and the application of flutter derivatives to self - excited loads of the bluff section is close to a linear relationship. 5
而鈍體斷面的顫振自激力高次諧波分量較大,具有較明顯的非線性響應特徵,驗證了用顫振導數表示鈍體的自激力只是一種線性近似。Study on the phase characteristics of cutting chatter
切削顫振的相位特性研究Numerical simulation of flutter for wings using the navier - stokes equations
方程的三維機翼顫振特性研究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,本文首先建立了復合材料壁板熱顫振的有限元模型並對受熱壁板的線性和非線性顫振特性進行了研究;最後確定了壁板的顫振邊界,分析了溫度、來流速度等因素對壁板顫振特性的影響規律。Finally, the 2d unsteady navier - stokes flow solver is coupled with two - degree - of - freedom flutter motion equation in time domain to investigate the flutter characteristics of several supercritical airfoils
最後,本文將二維非定常nayier - stokes方程解算器與顫振運動方程耦合,研究了超臨界翼型的跨音速顫振特性。Also, the paper provides an analytical assessment of the flutter character of the vehicle model
本文還進行了該飛行器近似模型的顫振特性的解析估計。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
通過對非線性壁板顫振方程的時域求解,研究了壁板的極限環顫振特性,得到了溫度、氣流速度等因素對非線性壁板顫振特性的影響規律。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力的準確數值求解及顫振特性研究,特別是跨音速范圍內的準確數值求解及研究,一直以來都是飛行器設計工作者必須面對的重要研究難題。At last the properties of the laplace wavelet algorithm was demonstrated by digital simulation signal and wind tunnel flutter test signal. it comes the result that correlation filtering using laplace is a very promising and feasible approach
本文演算法是採用matlab語言實現的,通過數字模擬和實際的風洞顫振試驗信號,對方法的數值特性和應用情況進行了考核和驗證。The on / off control performances of the skyhook damper in semi - active suspension system, the occur of chatter and its avoiding are analysis. the continuous damping rules are derived according to the feature of damping curve given by the controller in active control system
首先對主動懸掛系統阻尼控制中的天棚阻尼原理在半主動懸掛中的應用進行了研究,分析了其開關控制特性、顫振及其避免方法;根據主動懸掛控制信號的特點導出了連續阻尼控制規律。The investigation in this dissertation shows the capabilities of ausm + scheme, such as the exact resolution of shock, low numerical dissipation, simple and requiring less computational effort. the successful applications on supercritical airfoils and wings show that the present flow solvers based on ausm + scheme are of valuable and promising in practical application
通過本文的研究工作,展示了ausm +格式的激波高解析度、數值耗散小、編程簡潔、計算量較小等特性,同時,將其成功地應用於跨音速超臨界翼型、機翼的定常或非定常氣動特性的數值模擬和顫振研究中,具有一定的工程應用價值和良好的發展前景。In addition, aerodynamic stiffness and aerodynamic damping on the system are already obtained in the condition of fluid - structure interaction. it is known that aerodynamic loads are associated with blade vibration. the systematic eigenvalues are used to judge whether the flutter occurs so as to find the stable operating range of a wind turbine
本文把風力機葉片簡化為懸臂梁,對梁截面的二維葉型建模,完整推導了二維葉型的線性運動微分方程和流構耦合條件下系統的氣動剛度和氣動阻尼,此時氣動載荷與結構的位移矢量以及速度矢量是相互耦合的,再利用系統的特徵值來判斷葉片顫振是否發生,從而獲得風機的穩定工作范圍。As a special form of vibration, flutter is a major feature closed with the run environment and safety of aircraft, which is an important project of human - machine - environment engineering
作為一種特殊的振動形式,顫振與飛行器的運行環境和安全性密切相關,是人機與環境學科的一個重要研究課題。分享友人