实验表明，底部压强分布相对较均匀，底部在不同外界反压下具有不同的气动状态。
It is shown that base pressure distribution is comparatively uniform and base has different aerodynamic behaviours under different ambient pressures.
双稳态复合材料能在风力及水流状态变化时迅速改变空气动力形态，帮助去除涡轮叶片上多余的压力。
A bistable composite capable of altering its aerodynamic profile rapidly when wind and current conditions changed would help to remove unwanted stresses in the blades.
庭院的高墙和较高的温度导致这架黑鹰在其自身的旋翼洗流中下坠。旋翼洗流是一种“具有动力的下坠”，这是种很危险的空气动力学状态。
The high walls of the compound and the warm temperatures had caused the Black Hawk to descend inside its own rotor wash-a hazardous aerodynamic situation known as "settling with power."
然而，Darpa表示，在以17到22倍音速飞行的状态下，飞机还是回传了139秒的空气动力学数据。
However, the flight still managed to return 139 seconds of aerodynamic data at a velocity between 17 and 22 times the speed of sound, Darpa said.
适航性，有关气动能力、机械飞行能力、和合法性的飞机状态。
AIRWORTHINESS, the condition of the aircraft with respect to its aerodynamic, mechanical, and legal ability to fly.
针对直升机特有的涡环飞行状态，根据直升机空气动力学理论，分析了直升机涡环状态飞行事故的现象及成因。
To investigate helicopter vortex-ring state, the phenomenon and reason of helicopter vortex-ring state flight accident is analyzed from the view of helicopter aerodynamics.
研究了在二维定常不可压流动状态下雷诺数和翼型厚度等参数对翼型气动特性的影响。
For steady incompressible flows, the effects of Reynolds number and thickness of airfoils on the aerodynamic characteristics are studied.
“这些数据将提高对乘员舱壳的气动热力加热是预测，降低加热不确定性。”猎户座状态更新的注解说。
"These datawill improve aerothermodynamic heating predictions on the crew module backshelland reduce heating uncertainties, " noted an Orion status update.
电磁铁或手动操作，按下并旋转手动操作钮可实现手动状态锁定。气动弹簧复位、机械弹簧复位、电磁铁操作复位。
Solenoid or manual operation, press the button and rotate manual operation can achieve a state of lock manually. Reset pneumatic spring, mechanical spring reset, reset electromagnet operation.
根据全自动纸浆模塑生产线的工艺要求，采用信号—动作状态图法对气动系统进行分析与设计。
According to the technique request of pulp-mold produce line, the pneumatic system has been analyzed by the way of signal-action state graph.
但对于气动高度不稳定的飞机，辨识算法往往因状态方程组和灵敏度方程组积分发散而无法进行。
However, for highly aerodynamic unstable airplane, the identification algorithm can not usually be carried through due to divergence of the state equation and the sensitivity equation integration.
飞机在不同的飞行阶段和飞行状态下，由于作用在控制面上的气动负载不同，因而由铰链力矩引起的液压作动筒压力也在变化。
On military aircraft, hydraulic pressures of actuators caused by hinge torque vary with aerodynamic force on control surface due to different flight states.
利用典型状态的风洞试验结果对十字布局与叉字布局再入机动飞行器的气动特性进行了分析与比较。
In this paper aerodynamic characteristics of maneuvering reentry vehicle of cruciform configuration and bifurcate configuration are compared by means of the wind tunnel test results.
解放油罐车微妙的表面增强FQ- 360年划分其余的长矛范围，提高进化其气动效率在高速状态下。
Subtle exterior enhancements differentiate the FQ-360 from the rest of the Lancer Evolution range and improve its aerodynamic efficiency at high speed.
引入尾流收缩比因子，并将大速度时的涵道等效为圆形机翼，建立了一个适合于直升机悬停和前飞状态涵道尾桨气动特性分析的动量理论方法。
The shroud at high speed is modeled as an elliptic wing in order to construct a momentum theory method to investigate the aerodynamic characteristics of ducted tail rotor in hover and forward flight.
气动技术中气缸运动速度是一个重要技术参数，本文对气缸能达到的最低无爬行状态的速度和高速运动时的最高速度进行了分析。
In pneumatic technology, the speed of cylinder is an important technical parameter. The paper analyzes the lowest steady speed (no stick-slip effect) and the utmost speed the cylinder can reach.
比较了穿衣袖与不穿衣袖两种状态下手臂的气动力数据。
Aerodynamic data on upper arm were compared under the conditions with and without cloth.
基于附着流状态下的旋翼非定常翼型气动模型，给出了计算该状态下的翼型非定常升力、阻力和俯仰力矩的数值计算方法。
A numerical method is given to calculate the unsteady lift, pitching moment and drag acting on an airfoil of rotors under attached-flow conditions in a compressible flow.
力和力矩方程中的空气动力项已经全部用为其函数的状态变量及操纵力和力矩所代替。
The aerodynamic terms in the force and moment equations have all been replaced by the state variables of which they are functions. and control forces and moments.
算例表明：本文提出的新的状态空间气动弹性模型是一种精度较高而阶数较低的模型。
The results show that the new state-space aeroelastic model is one which has higher accuracy and lower order.
在建模过程中，考虑了螺旋桨滑流对飞机的气动干扰及不同飞行状态下螺旋桨拉力及扭矩的变化。
Interference of propeller slipstream, changing of propeller thrust and twist with different flight state was took into account.
冲压空气涡轮流场数值研究主要目的是模拟在实际高空加油工作状态下涡轮变桨距气动特性。
The aim of numerical experiment of ram air turbines is mainly to simulating its adjustable pitch aerodynamic characteristic on the actual flight refuel conditions.
耦合结构动力学方程，建立了基于状态空间的跨声速气动弹性分析模型。
Coupled with the structural equations, the models for transonic aeroelasticity in state-space are got.
由于爬行现象的影响，气缸在低速驱动时不能保持平滑的运动状态，降低了气动系统的控制精度。
Pneumatic cylinders may not retain steady motion when driven at low speed because of the stick-slip which decreases the accuracy of the pneumatic system.
给出了在锁定状态下不同振动条件时气动力系数变化的计算结果及其机理分析。
Computation of changes of aerodynamic force coefficients and its mechanism analysis under different oscillating conditions in lock-in status are given.
实现机翼在不同的飞行状态下的最优气动外形是变弯度自适应机翼的一项关键技术。
Making aircraft wing vary under different flying speeds is a key technology of variable camber adaptive wing.
采用理想平板的气动导数研究了各气动导数对颤振临界状态的影响。
The influence of aerodynamic force matrix on critical flutter state with aerodynamic derivatives of four different sections was studied.
本文评述了几种已有的状态空间气动弹性模型，提出了改进意见。
In this paper a review, is made of the existing state-space aeroelastic models, some improvements are made, and a new state-space aeroelastic model is presented.
本文评述了几种已有的状态空间气动弹性模型，提出了改进意见。
In this paper a review, is made of the existing state-space aeroelastic models, some improvements are made, and a new state-space aeroelastic model is presented.
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