考虑了横向扰动速度与电磁场扰动的耦合。
The coupling between the transverse velocity and electromagnetic perturbation is considered.
求解扰动速度幅值的演化规律，是流动稳定性非线性理论的关键问题之一。
One of the key problems in the nonlinear theory of the hydrodynamic stability is to determine the law of the evolution of the disturbance velocity amplitude.
本文建立了扰动速度势面元法预报螺旋桨表面非定常压力分布的理论和数值方法。
This paper sets the theoretical and numerical method predicting the unsteady pressure distribution on the propeller blade surface by using perturbation potential based on surface panel method.
计算结果表明，聚合物稀溶液减缓了扰动速度的增长，能有效地抑制流体的层流失稳。
The results show that dilute polymer solution decreases the disturbed velocity and restraints the flow instability effectively.
或者，稳定性可以被定义为生态系统在发生重大扰动，如一场火灾后，恢复到特定形式的速度。
Alternatively, stability can be defined as the speed with which an ecosystem returns to a particular form following a major disturbance, such as a fire.
采用邻域传播的思想，为每个水结点增加一个速度参数，推导出水面受到扰动后，水波的演变公式。
Increasing a speed parameter for each water node, we adopt the idea of neighboring regions spread to derivate the evolution formula of water wave with disturbance.
实验结果表明，所设计的伺服驱动控制器具有良好的速度控制能力和抗负载扰动能力。
Experiment results indicated that the servo controller possesses the characteristics of good speed control performance and anti-load-disturbance ability.
并在仿真测试中对该模型的性能进行了分析，证明该模型在收敛时间，节点查询速度，和对扰动的适应性方面优于传统的模型。
The simulation results of the model performance are analyzed to prove the convergence time, node querying speed and adaptability to churn are better than the traditional model.
针对机动目标存在的姿态扰动，研究了具有加速度和旋转运动的机动目标成像模型及其信号处理过程。
The dissertation demonstrates the maneuvering target imaging model with acceleration and rotating motion and its signal processing to solve attitude perturbation of the targets.
在能量吸收比较小的假设下，利用此法可得到两套及演速度扰动函数和反射函数的公式。
Two sets of inverse formula of velocity perturbation and reflection functions are deduced under the hypothesis of small energy absorption.
结果在速度剪切度增大到一定程度时，将会出现小尺度扰动的混沌行为，它导致局部高剪切区中湍斑的产生。
Results as the velocity shear increases to a certain extent, the small scale disturbances will exhibit chaotic behavior, which leads to the production of turbulent spots in local high shear regions.
研究表明波状界面和涡街是由界面处的剪力流速度分布和周期性扰动所造成的。
The results show that the wavy interface and vortex street are caused by the velocity distribution of shear flow and periodic disturbance at the interface.
行星越重，就越容易通过径向速度法侦测（本质上是行星引力对恒星的扰动）。
The more massive a planet, the easier it is to detect using radial velocity measurements (essentially the star's wobble as a planet's gravity tugs it).
对一种特定的扰动引力场模拟气体自引力，可以在速度平面上定性分析激波解的特性。
The features of shock wave can be analyzed qualitatively in the velocity plane for a special perturbed gravitation which is used to simulate the self-gravitation of interstellar gas.
通过计算机仿真，验证了该算法对初值的鲁棒性和复原的效果优于基于均匀分布随机扰动量模拟退火盲解卷积算法，提高了收敛到最优解的速度。
Simulation results show that the improved method has better quality, robustness and speed of convergence comparing with simulated annealing algorithm based on uniform distribution random perturbation.
仿真结果表明换极后的球谐函数计算扰动引力能够满足精度要求，且在计算中弹道方程的解算速度也有很大的提高。
The result of simulation indicates that this method not only satisfies the precision but also enables us to enhance the calculation speed of the trajectory equations.
通过对方程的数值求解，研究了外加磁场强度、进口速度分布、初始表面扰动对界面形状和界面张力的影响。
The influences of applied magnetic field. inlet velocity profile, initial surface disturbance and surface tension on interface shape were analyzed.
对山体尾流中最大平均速度扰动和湍流强度扰动的衰减规律以及山体尾流结构进行了分析。
The decay laws of the normalized maximum perturbations in the mean velocity and turbulent intensity in the wake and the wake structure are discussed.
目标运动的基本假设是在一段观测时间中保持常速度，并有随机速度扰动。
A basic assumption concerning source motion is to consider it to be of constant velocity with random perturbations over the observation intervals.
表观相速度扰动程度随频率减小而增加，直至出现大扰动。
Disturbance degree of the apparent phase velocity increases with decrease of frequency until a maximum one occurs.
针对速度环难以对负载转矩扰动进行及时调节的问题，设计了负载转矩的前馈环节来进行动态转矩补偿。
Also, to compensate the torque disturbance caused by load variations, a torque disturbance feed-forward is designed in motor speed loop.
在相同扰动情况下，该方法能更好的使多电机以一定速度同步运行。
In the same disturb circumstance; the method could make synchronous performance of the motors better in certain speed.
用复合控制把惯导系统测量的炮塔俯仰转动角速度（扰动角速度）反馈到控制前端，进行预先补偿，可保证小的瞬态误差和系统的稳定性。
The stability and small dynamic errors could be confirmed by using the method of composite control in which the pitch angular rate of barbette sensed by INS was feed back and compensated in advance.
根据表面质点响应中瑞利波和反射体波能量分配分析表观相速度扰动机制，讨论振源、测点、洞穴三者相对位置及频率对表面波表观相速度影响。
Mechanism of disturbance of apparent phase velocity is analyzed from distribution of energies of Rayleigh waves and the reflected body waves in the responses.
通过速度控制器对负载扰动进行估计和补偿，消除了负载扰动可能带来的稳态跟踪误差。
The load disturbance is estimated and compensated by the speed controller, which effectively removes the static tracking error that would be caused by the disturbance without compensation.
详细描述了捷联惯性导航系统（SINS）中加速度计和陀螺数据仿真的方法，并给出了求解扰动重力的算法。
The simulative methods about the data of accelerator and gyro embedded in SINS are described in detail, and the algorithm about the disturbing gravity is presented.
对于不同的来流速度与不同的人工扰动频率与波数，一系列的实验研究提供了一组初始扰动的增长曲线。
The initial instability development has been investigated for different modes of artificial disturbances and oncoming wind speeds.
数值模拟结果表明，在引入了扰动胀量后，用扰动涡方法模拟动静干涉仍保持较好的收敛性和收敛速度，且与试验的符合程度更好。
From the simulation results it can seen that the disturbance vortex method still converges fast even the disturbance expansion is taken into consideration.
用等价预测碰撞线代替预测碰撞线，只需要探测视线的角速度，使需要探测的参数减少。文中还提出了外扰动常驻条件下，渐近稳定系统的设计方法。
If predicted collision courses are replaced with equivalent collis'on courses, this method only needs to measure the rotation rate of the Line-of-Sight, therefore, the measured parameters are reduced.
用等价预测碰撞线代替预测碰撞线，只需要探测视线的角速度，使需要探测的参数减少。文中还提出了外扰动常驻条件下，渐近稳定系统的设计方法。
If predicted collision courses are replaced with equivalent collis'on courses, this method only needs to measure the rotation rate of the Line-of-Sight, therefore, the measured parameters are reduced.
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