flutter vi. 1.拍翅振翼;(旗帜)飘扬。 2.颤动,(心)急跳,(脉搏)浮动。 3.(心绪)不宁,坐立不安。 4.〔口语〕对人进行测谎。 He fluttered about the room nervously. 他心绪不宁地在房间里徘回。 vt. 1.振(翼);拍(翅)。 2.扰乱;使不安。 n. 1.振翼;飘扬。 2.不安,焦急,波动。 3.(身体部分的)病态阵跳。 4.〔英俚〕投机,小赌。 5.颤振。 6.图像跳动,脉冲干扰,放音失真。 7.对…进行测谎。 the flutter of wings 翅膀的拍动。 all in a flutter 心慌意乱。 cause [make] a great flutter 轰动一时。 fall into a flutter 心慌意乱。 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.
Flutter analysis on aircraft for the condition of unsymmetrical stores 全机非对称外挂状态颤振分析
Flutter analysis of a high - aspect - ratio sandwich wing under large angle of attack 大展弦比飞机翼身结构不同刚度对结构响应的影响
With this kind of element , panel flutter analysis can be performed not only for thin plates but for the middle - thickness laminates 由于min3单元计及了壁板的横向剪切效应,因此这种壁板颤振分析方法不仅可以针对薄板,而且可以针对具有中等厚度的复合材料层合板。
The numerical flutter analysis system was formed by the three - dimensional numerical simulation of the vibrating cascade flow combined with the structural dynamics analysis of vibrating blade 将振动叶栅三维流动数值模拟与振动叶片结构动力学分析相结合,建立了叶片颤振数值分析系统。
The finite element equation for linear and nonlinear panel flutter analysis using the triangular three nodal mindlin element ( min3 ) which considers the first order shear strain in the plate is formulated ( 3 )使用三结点三角形mindlin板单元( min3单元)推导了壁板热颤振的有限元方程。
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 本文的目的就是对壁板的热颤振特性进行系统深入的分析和研究,为高速飞行器的壁板结构的防颤振设计和壁板颤振抑制的研究建立理论基础。
The aerothermoelastic analysis of missile structure includes the thermal stiffness , thermal vibration and thermal flutter analysis . this dissertation emphasizes on thermal vibration analysis of the aerial vehicle under aerodynamic heat condition 本文研究背景是弹体这类典型结构在高速飞行情况下,由于气动加热引起的高温对结构气动热弹性分析,包括热刚度、热振动问题的研究。
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 利用此系统对实际叶片的颤振特性进行了评估,得到了正确的结果,说明了本文的方法和所建立的系统正确有效,可望在工程实际问题中加以应用。
The three - dimensional flutter analysis in frequency - domain of suspension bridges and theirs flutter stability when construction is carried out in terms of dealing with the project of constructing a suspension bridge ? ancang jiang bridge , besides with other engineering projects 本文以澜沧江悬索桥为工程背景,结合其他几个工程实例,讨论了三维颤振频域分析方法和悬索桥施工阶段的颤振稳定性问题。
In the engineering background of a suspension bridge tender project , taking the bridge and the airflow as a whole system , the effectiveness of the surface in the flutter stability of the system is studied by a multi - mode flutter analysis approach 以某悬索桥设计方案为工程背景,把桥梁与气流作为一系统,应用多模态颤振分析方法,研究了在主梁下风侧设置翼板这种控制措施对改善该系统颤振稳定性的效果。