Computation of wing flutter for unsteady transonic flows in the frequency domain is studied in this thesis.
本文研究了机翼跨音速颤振的频域计算方法。
Combining dynamic design of wing flutter model for a giant transport aircraft, a numerical example of engineering application is presented.
结合某大型飞机机翼颤振吹风模型的动力设计,本文给出了工程应用的具体数值例子。
A local form of interface interpolation method for fluid-structure interaction problems was presented and applied to interpolation of wing flutter calculation.
提出了一种局部形式的流固耦合问题界面插值方法,并应用于机翼颤振计算的界面插值。
The computing AGARD445.6 wing flutter results validate the physical law of a typical transonic flutter "dip" with the bottom near the domain which Mach number is 1.
通过跨声速标模算例AGARD445.6机翼的颤振计算,计算的颤振临界速度与实验值有5%左右的误差,验证本方法的正确性。
It is the peculiar story of two of the more talented Dutchmen at the World Cup and the way, when egos collide, a flutter of a butterfly's wing can quickly turn into a tempest.
这两位超级天才荷兰球员之间在世界杯的故事说起来很特别。当两个自负的人起冲突,就像蝴蝶效应一样,小小蝴蝶的翅膀震颤也会演变成大风暴。
We present a method of analyzing flutter characteristics of wing with nonlinear stiffness in supersonic flow.
提出了带结构刚度非线性的超音速弹翼的颤振分析方法。
Then the gradients of flutter speed and frequency of wing with respect to the design variables were deduced with analytical method.
使用解析方式推导得到机翼的临界颤振速度、颤振频率对于设计变量的灵敏度表达式。
In order to validate the presented method, the linear flutter equations of the sandwich wing are established using the linear part of the ONERA model.
为了验证非线性颤振边界的求解方法,还利用ONERA气动力模型中的线性部分建立了夹芯翼的线性颤振方程。
An optimization method of flutter wing model was developed and was used in many aspects of model designing, providing an efficient design method in engineering.
在此基础上建立了完整的机翼颤振模型工程优化设计方法,使该方法能够应用在模型设计的很多方面,为工程设计提供了一种有效的手段。
This paper gives a brief description of the whole process of the low-speed wind tunnel test for active flutter suppression of a two-dimensional wing model with trailing edge control surface.
本文简要地阐述了具有后缘控制面的二元机翼模型主动颤振抑制低速风洞试验的全过程。
The paper analyzes the external stores jam flutter characteristics of aircraft wing.
分析了飞机机翼—外挂干扰颤振特性。
The math model, based on real physical one, was modeled according the essential theory and design course of the flutter wing model designing.
根据实际问题的物理模型,并通过对机翼颤振模型设计原理的分析,建立了优化设计的数学模型;
The unsteady aerodynamic results of the transonic wing are presented, and flutter calculation is made. The comparison with TDLM shows that the agreement is very good.
对跨声速飞机机翼作了跨声速非定常气动力计算,对跨声速民航机机翼的颤振模型作了颤振计算,与TDLM的比较表明,两者结果有较好的一致性。
Both theoretical and experimental analyses are performed to investigate the limit cycle flutter bifurcation of a sweepback wing with an external store in the tip of the wing.
从理论及实验两方面,研究了带外挂后掠机翼的极限环颤振分叉现象,得到了稳定、半稳定及不稳定极限环。
In this paper an interior penalty function method is applied to minimize the weight of a wing structure under the constraints of flutter, strength and minimum gage.
本文运用内罚函数法,使一个在颤振、强度和最小尺度等约束条件下的翼面结构重量取极小值。
Modal test and parameter identification of a wind tunnel flutter model simulating a wing with external missiles are presented in this paper.
本文介绍了带外挂风洞颤振模型模态试验与参数识别方法。
Modal test and parameter identification of a wind tunnel flutter model, similar to a wing with external missiles, are presented in this paper.
本文介绍了带外挂风洞颤振模型模态试验与参数识别方法。
The phenomena "limit cycle" occurred in wind tunnel test for active flutter suppression of a wing model are numerically explained using Harmonic Balance Method.
本文采用谐波平衡法,定量地解释了机翼颤振主动抑制风洞试验中出现的极限环现象。
From the characteristics of aerothermoelasticity, the effects of temperature in aerodynamic heating on the mode of a delta wing and the characteristic of its flutter were researched.
根据热气动弹性特点,探讨了气动加热温度对三角机翼模态特性和颤振特性的影响。
The results of the wind tunnel test show the flutter critical speed of the wing model increases by 37% after the implementation of AFS system.
风洞试验结果说明,采用颤振主动抑制控制系统后,机翼的颤振临界速度可提高37%。
It has been said that something as small as the flutter of a butterfly's wing can ultimately cause a typhoon halfway around the world.
据说,蝴蝶煽动翅膀轻轻地煽动一下翅膀,可以地球的另一端带来飓风。
A flutter analysis based on root locus method is programmed. It can be applied to a wing equipped with an active flutter suppression system.
本文编制了可用于分析带有颤振主动抑制系统的机翼的根轨迹法程序。
Some typical numerical results are presented from application of the model to static analysis, dynamic analysis, static aeroelasticity and flutter analysis of a wing-box and a wing.
将等效板模型推广应用到典型机翼结构的静力学、动力学以及静、动气动弹性分析中。
Some typical numerical results are presented from application of the model to the static analysis, dynamic analysis, static aeroelasticity and flutter analysis of a wing-box and a wing.
将等效板模型推广应用到典型机翼结构的静力学、动力学以及静、动气动弹性分析中。
Some typical numerical results are presented from application of the model to the static analysis, dynamic analysis, static aeroelasticity and flutter analysis of a wing-box and a wing.
将等效板模型推广应用到典型机翼结构的静力学、动力学以及静、动气动弹性分析中。
应用推荐