The trajectory of vehicle barrier crash should be able to stay in the smooth transition, does not affect the normal running of the vehicle to leave the springback Angle and the smaller the.
车辆碰撞护栏的运动轨迹应能圆滑过渡,以较小的驶离角和较小的回弹量停留在不影响车辆正常行驶的地方。
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.
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。
Whether the rocket is launched vertically, or at some initial Angle, it reaches its minimum velocity at the peak of its trajectory.
是否是火箭垂直发射,或在一些初步的角度来看,达到其最低速度的高峰期,其轨迹。
Finally, the dissertation designed the fuzzy PD controller of trajectory tracking, which is combined with attitude Angle controller, so that the whole flight controller is completed.
本文最后设计了直升机模糊pd轨迹跟踪控制器,与姿态角控制器相结合,完成对整个飞行控制系统的设计。
Its dynamic characteristics involved with speed and altitude, the influence of the inclined Angle of the trajectory plane and load on it are also calculated and analyzed in this paper.
推导了斜筋斗计算公式,并计算分析了其速度、高度特性,及轨迹平面倾斜角、过载对斜筋斗的影响,计算结果与理论分析一致。
The curvature rate and well curvature plane Angle can be used to make a good description of the influence of the well trajectory parameters on the side fo.
弯曲平面倾角和井眼曲率的有机结合可以很好的描述井眼轨迹空间形状对钻头侧向力的影响。
The curvature rate and well curvature plane Angle can be used to make a good description of the influence of the well trajectory parameters on the side force acting on bit.
弯曲平面倾角和井眼曲率的有机结合可以很好的描述井眼轨迹空间形状对钻头侧向力的影响。
This paper analyzes the impact of a radar system trajectory measurement and correction of error Angle measurement accuracy factor.
本文主要分析影响某弹道测量与修正雷达系统测角精度的误差因素。
This guidance law can satisfy the requirements of miss distance and terminal Angle, thus it guarantees that all phases of the large-space variable trajectory smoothly link.
该导引律能同时满足脱靶量要求和末端落角要求,保证了大空域变轨弹道的各段弹道平滑衔接。
The first problem is therefore to calculate the trajectory of a body thrown at an Angle in the Earth's gravitational field and Newtonian flow resistance.
因此,第一个问题是引发身体在地球的引力场和牛顿流动性的角度来计算的轨迹。
The wide-angle sky screen can be used for measuring the terminal velocity of the projectile, and providing synchronous signal for other trajectory measurement apparatus as the trigger device of the .
该装置可以用来测试弹丸末速,作为较大靶面的触发装置,为其他弹道测试仪器提供同步信号。
In this article, trajectory angle is taking the place of the rate of climb in order to study the influence of other trajectory parameter applied on it.
用航迹角来代替性能计算中常用的爬升率概念,对飞机爬升各项参数的变化及其影响因素进行了研究。
The Angle of attack, pitch Angle and velocity at shifted point for typical trajectory were calculated.
给出了两种控制方法的导引律,计算了典型弹道的攻角、俯仰角和交班点速度等参数。
Hole trajectory control techniques and safety drilling measures of high Angle deviated Wells in this block were analyzed and summed.
总结分析了曲104块大斜度井直井段、造斜段、稳斜段井眼轨迹控制技术要点以及井下安全钻井措施。
Analyzed the conditions of realization of balance when the production line trajectory vibrating motor and the producing circular vibrating trajectory motors there is a phase angle.
分析了当产生直线运动轨迹的激振电机和产生圆运动轨迹的激振电机存在一个相位差角的情况下运动情况及实现平动的条件。
The air resistance of damper of 1-dimension trajectory correcting fuses (1-D TCF) is measured under pill angle of attack and low wind speed.
一维弹道修正引信阻力器空气阻力的简捷测量,是在弹丸零攻角、低风速下测量空气阻力的试验方法。
This is showed on the image of the particles' trajectory: when the opening-angle increase, the particle velocity to the axis increase, on both sides of the axis.
这在颗粒的运动轨迹图象上表现为:当开口角度增大时,在中轴线两侧的颗粒向中轴线运动的速度相对增大。
Well trajectory control is one of the key technologies of high-angle well well drilling, and the results of the control directly affect the well friction, torque, safety and construction of all Wells.
井眼轨迹控制是大斜度井的关键技术之一,其结果直接影响该井摩阻扭矩的大小、全井的安全及施工的顺利等。
Radius and orbital velocities can be directly expressed as functions of time or polar angle, which is helpful for designing flight mission and motion trajectory.
这种方法可直接获得向径、轨道速度等参数随时间或极角(绕地心的转动角)的变化,便于分析轨道转移与逃逸运动,有助于飞行使命与运动轨迹的设计。
Radius and orbital velocities can be directly expressed as functions of time or polar angle, which is helpful for designing flight mission and motion trajectory.
这种方法可直接获得向径、轨道速度等参数随时间或极角(绕地心的转动角)的变化,便于分析轨道转移与逃逸运动,有助于飞行使命与运动轨迹的设计。
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