翼型表面积冰位置变化对气动系数影响最大;
The horn location on airfoil surface has the most severe effects on airfoil coefficients.
积冰几何形状对翼型气动系数的影响是复杂的。
The ice accretion geometric characteristics have complex effects on airfoil aerodynamic coefficients.
本模型可精确估计气动系数比,其中包括重要的静稳定度。
The present model is capable of estimating aerodynamic coefficient ratios including the important static stability margin.
该配置的弹丸气动系数的预测是必不可少的评估新设计的性能。
The prediction of aerodynamic coefficients for projectile configurations is essential in assessing the performance of new designs.
基于叶素修正理论和三维机翼气动系数计算公式,提出了一种分析双叶定距螺旋桨的新方法。
A new method for analyzing twin-blade fixed-pitch propeller was proposed based on the theory of corrected blade foil and aerodynamic formula of 3-d wing.
对新款车的前后区域均进行了空气动力学微调,这样做旨在确保最大限度地平衡前后轴的升力系数。
The aerodynamic fine tuning in the front and rear areas is designed to guarantee an optimum balance in the lift coefficients at the front and rear axles.
建立了再入机动弹道数学模型,给出了气动力系数为速度、迎角、高度的函数拟合式,进行了最佳再入机动弹道设计和仿真计算。
The mathematical model of reentry maneuvering trajectory is established. The fitting expression of aerodynamic coefficient function on velocity, attack of Angle and altitude is presented.
通过与气动连续进样的对比,测出了钙、镁在流动注射进样下的分散系数。
The dispersion coefficients of calcium and magnesium were estimated by comparison with continuously pneumatic feed.
计算得到的不同流线型列车的整体长细比大小排序与其气动阻力系数排序完全一致。
The order of total slenderness ratios of the five trains is as same as that of aerodynamic drag coefficients.
论文主要研究从弹丸自由飞行数据中如何准确地拟合空气动力系数。
This paper mainly studies how to accurately fit the air dynamics parameter by the ballistic data of projectiles' free flight.
不论刚体气动力为线性还是非线性,气动力系数随动压变化的趋势均呈线性。
The aerodynamic coefficient varies with dynamic pressures always linearly, no matter what a rigid aerodynamic force may be linear or non-linear.
在进行亚音速气动分析时,应用线化速度势理论计算运载器的气动力系数,而后进行回归分析,得到运载器亚音速飞行时的气动特性模型。
For subsonic aerodynamic analysis, Linearized Velocity Potential Theory is used to evaluate the aerodynamic coefficient, and we can get subsonic aerodynamic model of vehicle by Regression analysis.
试验得到了具有典型倾角的拉索在不同风向角下,拉索模型上的平均风压和脉动风压系数,以及气动力系数。
Mean and fluctuating pressures and aerodynamic force coefficients on the cable model and the artificial rivulet are obtained under the conditions of typical cable inclined angles and wind angles.
对在一个各向同性、均匀的弹性球的具有恒定的热传导系数的球面上进行加热这一理想情况下,计算了陨星由于空气动力学加热而产生的热应力。
Thermal stress in meteoroids by aerodynamic heating is calculated for the ideal case of an isotropic, homogeneous, elastic sphere being heated at the surface with a constant heat transfer coefficient.
根据气动力系数的脉动量急剧上升的起始点确定抖振起始边界。
The buffet onset boundary is defined as the begin point of increased suddenly fluctuating value of aerodynamic coefficients.
考虑了不同飞行攻角、不同燃料流率下气动参数,包括升力系数、阻力系数和俯仰力矩系数的变化规律。
The change rules of aerodynamic parameters including lift coefficient, drag coefficient and pitch moment coefficient have been analyzed when Angle of attack and fuel flow rate is changed.
针对大跨度双幅桥面桥梁三分力系数的气动干扰问题,采用风洞试验方法对某在建大跨度双幅桥面桥梁的气动干扰效应进行研究。
The aerodynamic interference effects on aerostatic coefficients of twin deck Bridges with large span were investigated in details by means of wind tunnel test.
采用流场数值模拟计算方法,计算了横风作用时的垂向气动升力系数、气动横向力系数和侧滚力矩系数,得出各系数与车辆速度和风速之间的变化关系。
Using numerical computation of fluid flow, the coefficients of vertical force, lateral force and rolling moment caused by cross-wind were calculated, which were related to train speed and wind speed.
适当延长地板,可提高气动阻力系数的测量精度。
By extending length of the test floor properly, the aerodynamic drag coefficient can be measured more precisely.
从外挂对载机气动特性影响的计算方法出发,分析了现役某型战机外挂ZC-1航空侦察吊舱对载机升力系数、阻力系数和气动中心的影响,得出了具体的计算结果。
This paper has analyzed and calculated the influence of external ZC-1 scout equipment on the lift coefficient, damp coefficient and aerodynamic center of the fighter plane.
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.
各力系数曲线揭示了折叠翼与非折叠翼气动特性差别的原因。
The force curves make the reason of the differences of aerodynamics between flapping wing with and without wing flexure clear.
静力三分力系数用于描述风对桥梁的静力作用,气动导数是颤振和抖振分析方法的核心。
Static coefficients are defined to describe the static effect of wind on bridge, and the aerodynamic derivatives are used to describe the aerodynamic effect.
试验数据分析结果表明,不同客车前部造型对气动力影响非常显著,如通过改善造型可使空气阻力系数由0.7509降为0.5759。
The analysis of aerodynamic force data shows that differ front shape is very important to aerodynamic force. For example, coach model air drag coefficient can be lowed to 0.5759 from 0.7509.
通过对195个研究方案的对比研究,目前阶段数值模拟的结果中风扇转子气动负荷系数达到0.65。
The aerodynamic load coefficient of transonic fan rotor has reached 0.65, as obtained through comparison research on 195 projects which aim at improving the transonic fan rotor aerodynamic load.
同时比较了大小叶片设计方案与全为大叶片方案的性能,发现采用大小叶片可提高静压恢复系数,降低空气动力损失。
And the results showed that the performance of the diffuser with splitter blade was improved. The pressure recovery coefficient was (increased) and the aerodynamic loss coefficient was decreased.
计算结果表明:气动力系数及分离泡呈规则的周期性变化,证明方法是成功的、可行的。
The results show that the force coefficients and separation bubble are periodic, which indicates the method is correct and feasible.
建立了大型水平轴风轮转子/塔架耦合系统的气动弹性模型,推导了转子/塔架耦合系统周期系数运动方程,给出了气动弹性稳定性分析方法。
The vibration modal analysis method and the influent factors of the natural frequency of the rotating rotor of horizontal axis wind turbine rotor blades were presented.
建立了大型水平轴风轮转子/塔架耦合系统的气动弹性模型,推导了转子/塔架耦合系统周期系数运动方程,给出了气动弹性稳定性分析方法。
The vibration modal analysis method and the influent factors of the natural frequency of the rotating rotor of horizontal axis wind turbine rotor blades were presented.
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