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- The aerodynamic forces on any control surface produce a moment about the hinge. 在任何操纵面上的空气动力均产生围绕其铰链轴的力矩。
- This curvature of the flow field alters the pressure distribution and the aerodynamic forces from their values in translational flight. 流场的弯曲使压力分布和空气动力与直线飞行时的值相比发生了变化。
- Aerodynamic forces and moments are strictly speaking functionals of the state variables. 严格说来,气动力和力矩是状态变量的泛涵。
- The aerodynamic forces can rapidly increase with the increase of the bridge's height and wind-speed. 在指数风条件下,棚车的气动力随桥梁高度和横风速度的增加而迅速增加;
- The use of expression such as these for the aerodynamic forces converts the differential equations of motion into integro-differential equations. 如对空气动力采用这类表达式,就将运动的微分方程变换成积分微分方程。
- The aerodynamic forces acting on trains increase greatly under strong cross-wind,which is closely associated with train stability. 在强侧风作用下,作用于列车的气动力迅速增加,严重影响列车运行的稳定性。
- This program calculates the aerodynamic forces from take-off up to landing and through the subsonic, transonic, and supersonic speed regimes. 使用的计算方法是根据实验数据和经验公式。本程序可计算起飞到着 陆的气动力。
- Under the actions of Lorentz and aerodynamic forces, the arc has to move along the rail electrodes toward the quenching area. 在运动过程中会出现电弧的停滞和后退的重击穿现象,严重降低了断路器的开断性能。
- The correction techniques of aerodynamic forces were introduced in the computation and analysis of static aeroelastic divergence. 将气动力修正技术应用于静气动弹性发散计算与分析中。
- According to the demand of flight control system, a nonlinear dynamics model with considerable aerodynamic forces and moments for a large maneuver re entry missile head is built. 根据飞行控制要求,考虑了影响较大的气动力和气动力矩因素,建立了一个完全表征大机动情况下弹头运动的非线性动力学模型。
- Genetic algorithm is adopted as optimization method, and aerodynamic forces are provided by the numerical solution of three dimensional Euler equations. 采用最优化方法为遗传算法,机翼的气动力由三维欧拉方程的数值解来提供。
- A flutter differential equation for two coupled asymmetrical control surfaces was derived using Lagrangian equation under the supposition of quasi-steady aerodynamic forces. 以一对耦合控制面结构的气动弹性模型为研究对象,在准定常气动力的假设下,利用拉格朗日方程建立结构的颤振运动微分方程。
- The accomplishing method is that the attack angles of aerodynamic forces are made changing along transmission line so aerodynamic forces are made being approximate balance state by spiral winding plastic belt on transmission line. 实现的方法是在输电线螺旋地缠绕横截面为三角形的塑料带,使气动力的攻角沿输电线的长度方向周期性地变化,使作用在输电线上的气动力近似地成为平衡力系。
- An equipment of measuring aerodynamic force was designed and developed, and several bionic wings were tested on it. 研制了气动力测量实验平台,对各种翅型进行了实验研究。
- This paper presents the study,by means of comparison and alalysis,on the correlation of the measured data of the aerodynamic forces on an AGARD calibration model B in BIA's hypersonic wind tunnel FD 07 with those in other hypersonic wind tunnels. 通过比较分析法研究AGARD B标模在BIA的FD 0 7风洞中气动力测量数据与其它高超声速风洞设备测量结果的相互关联。
- The analysis of aerodynamic force data shows that differ front shape is very important to aerodynamic force. 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
- The application of the theory of rotational characteristics will be useful in computation of aerodynamic force. 该方法的应用对轴对称体的气动力计算具有实际应用价值。
- The forecast of the aerodynamic characteristic on the complicated reentry figure is processed through estimating the aerodynamic forces by bridging function and simulating the flow field by DSMC method. 通过桥函数估算气动力以及蒙特卡罗方法数值模拟流场 ,对复杂外形再入体过渡区气动特性进行预测。
- The linear aerodynamic forces of airship hull were calculated in terms of Munk airship theory. The linear aerodynamic forces of airship hull were calculated by Allen viscous cross flow theory. 根据势流理论对飞艇艇身线性气动力进行分析计算,由于飞艇艇体是旋成体,故根据Allen的横流阻力理论对其所受的非线性气动力进行计算;
- This method can measure the object trajectory and its aerodynamic forces in the complex flow field accurately and predicted the compalibility bctween the pilotless aircraft and the parent airplane. 该方法能较精确地获得外挂物在复杂干扰流场中所受的空气动力和力矩,实时地提供离机后的轨迹和姿态,预测了无人机和母机之间飞行是否相容的问题。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries