相对速度

词组短语

relative speed · relative velocity

与相对速度相关的网络例句 [注：此内容来源于网络，仅供参考]

The results show that the zero speed point is located on the arc between two absolute speed zero points of rotation axes, and the necessity of relative speed zero point is demonstrated.

利用程序对相对速度零点的位置进行搜索，发现速度零点处于两轴绝对速度零点之间的圆弧上，从而证明了相对速度零点存在的必然性。

With the help of computer program, zero speed point was searched. The results show that the zero speed point is located on the arc between two absolute speed zero points of rotation axes, and the necessity of relative speed zero point is demonstrated.

利用程序对相对速度零点的位置进行搜索，发现速度零点处于两轴绝对速度零点之间的圆弧上，从而证明了相对速度零点存在的必然性。

Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析、建立轨道摄动计算模型的基础上，首先采用基于轨道远、近地点特征对大量编目在册的空间碎片进行初步几何静态筛选，然后根据碎片与目标轨道面的相对位置特点把碎片分为异面与准共面两种情况以进行动态筛选，在筛选过程中考虑到预报时限长度和轨道摄动影响，引入了轨道摄动中具有积累效应的长期项以满足危险时间点的捕捉要求，利用了长期项摄动变化线性的特点导出了碎片与目标异面情况下各自过交线的时间序列成准等差数列的规律性和准共面情况下类似的规律性，从而显著地提高了前期轨道筛选的计算效率；最后对剩余危险碎片和目标飞行器利用SXP4轨道预报模型在前期轨道筛选的基础上以各个危险探测时间点为预报的时间起点，并根据预报计算结果，分析目标和碎片在该时间点的运动趋势是相互远离还是相互接近，推出预计最小相对距离发生时刻相对此刻的时间长度，得到其随时间变化的局部最小相对距离以及危险距离发生的时刻和相对速度，这是一个采用变时间步长、快速逼近最小相对距离的过程。

Prior to a campaign known as the relative motion, relative velocity as the speed with w said.

前一个运动称为相对运动，其速度称为相对速度，用w表示。

Theory; the spatial meshing theory includes comparative motion, comparative differential and conjugative curved surface; and the application of meshing theory includes gear drive and worm drive. The spatial meshing theory is the main part of the course.

课程的重点讲解内容有曲线的参数方程、切线、法面、弧长、曲率、空间曲线的基本公式、挠率及平面曲线的基本公式等；曲面第一和第二基本公式，法曲率、主方向和主曲率、欧拉公式、短程挠率、欧拉公式和贝特朗公式推广、相对法曲率和相对短程挠率等；刚体的绝对和相对运动速度、相对微分和绝对微分、相对速度和相对微分、轨迹曲面的法曲率和短程挠率等；空间共轭曲面的啮合条件、诱导法曲率、两类界限点、等距共轭曲面、空间啮合的二次接触原理等；蜗杆传动的数学模型建立及啮合特性分析方法等。

However, most of them can operate properly for stationary wireless and low-mobility receiving.

然而，大部份都是针对无相对速度或低相对速度下的同步的解决方法。

Finally, he air velocity, the velocity of the wood particle, the relative velocity between the air and the wood particle, the wood particle's residence time and the variations of the particle's velocity along radial and circle are measured. The ISD of particles is analyzed on dynamics.

最后，测量了气流速度、刨花速度、刨花与气流间的相对速度、刨花在半环内的停留时间及刨花在半环内沿径向和周向的速度分布，并地基础上进行了刨花对撞流干燥的动力学分析。

Finally, the air velocity, the velocity of the wood particle, the relative velocity between the air and the wood particle, the wood particle's residence time and the variations of the particle's velocity along radial and circle are measured.

最后，测量了气流速度、刨花速度、刨花与气流间的相对速度、刨花在半环内的停留时间及刨花在半环内沿径向和周向的速度分布，并在实验基础上进行了刨花对撞流干燥的动力学分析。

The numerical results show that: the stress distribution on contact surface is relative to the relative velocity of sliding block and friction coefficient, and the maximum relative error of stress can be 100.08%. The non-linear Stribeck friction model can better describe the real situation of contact surface, because of the consideration of impact of the relative velocity to the friction.

研究结果表明：随着接触体相对速度的改变，摩擦因数相应变化，接触面上的应力与位移的分布随之改变，应力最大相对误差达100.08%；Stribeck模型考虑了速度对摩擦因数的影响，更能描述接触的真实情况。

Thus, the lane keeping and collision avoidance can be achieved. In the laser scanner subsystem, the estimation of relative speed between two cars is achieved by applying the 1-dimensional Kalman filter to obtain a reliable D/V curve.

在雷射扫瞄器方面，本文以一维的Kalman filter针对相对速度做估测，并利用相对距离与相对速度之间的关系，提出一 D/V 曲线碰撞预先警告时间。

与相对速度相关的网络解释 [注：此内容来源于网络，仅供参考]

relative permittivity：相对电容率,相对介电常数

relative permeability 相对磁导率 | relative permittivity 相对电容率,相对介电常数 | relative velocity 相对速度

relative speed：相对速度

relative speed approach 接近相对速度相对接近航速 | relative speed 相对速度 | relative speed 相对速度相对速度

relative speed：相对速度相对速度

relative speed 相对速度 | relative speed 相对速度相对速度 | relative standard deviation 相对标准偏差

relative speed approach：接近相对速度相对接近航速

relative sensitivity 相对灵敏度 | relative speed approach 接近相对速度相对接近航速 | relative speed 相对速度

relative uniformity：相对一致性

relative uniformity 相对一致性 | relative velocity 相对速度 | relatively bounded space 相对有界空间

relative velocity：相对速度

将叶片的吸力面(Suction)和压力面(Pressure)以轮毂定义为旋转壁面条件,以便在后面的计算中得到旋转的力矩,以计算风机的全效率. 在旋转壁面条件的定义中,按照MRF的要求,将旋转壁面的旋转速度定义为相对速度(Relative Velocity),并且相对周围流体速度为0.

relative velocity：相对速度Btu中国学习动力网

relative motion 相对运动Btu中国学习动力网 | relative velocity 相对速度Btu中国学习动力网 | relatively prime 互素Btu中国学习动力网

equivalent relative velocity：等效相对速度

相当半径 equivalent radius | 等效相对速度 equivalent relative velocity | 相当粗度 equivalent roughness

unequal relative velocity：不等相对速度

unequal quantization effect 不等量子化效应 | unequal relative velocity 不等相对速度 | unequal replication 不等重复

velocity, relative：相对速度

velocity, propagation 传播速度 | velocity, relative 相对速度 | velocity, tangential 切向速度