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initial approximation相关的网络例句

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与 initial approximation 相关的网络例句 [注:此内容来源于网络,仅供参考]

The national defence basic project as background and the dynamic model of cotrolled transfer matrix for multiple launch rocket was created in order to reduce the initial disturbance of rocket projectile. The causes that affect the angle change of orientation locator were analyzed by the engineering system dynamic theory base on multibody system transfer matrix method. The simulation of dispersion for multiple launch rocket was implementation, and the affect law between the angle of elevation and side deflection and the control parameters was acquired. The control module was installed on the orientation locator of multiple rocket launcher to control the initial disturbance of rocket that provide new method and theory base and show the engineering system dynamic base on the multibody system transfer matrix method is effective.

本文以国防基础科研项目为背景,建立了通过控制定向器角运动来减小火箭弹起始扰动的多管火箭受控多体系统动力学模型,应用基于多体系统传递矩阵法的工程系统动力学理论,进行了定向器角度运动的影响因素分析,进行了受控多管火箭炮发射动力学和密集度数值仿真,得到了定向器俯仰和侧偏角控制参数对俯仰角和侧偏角的影响规律,为在火箭炮定向器上加装控制集成模块控制火箭弹的起始扰动和射击精度提供了新思路和理论基础,也表明了基于多体系统传递矩阵法的工程系统动力学理论的有效性。

Mainly consists of two aspects, one is made from an inverted pendulum control of the initial perspective through direct adaptive fuzzy control methods to restore stability at Liandugu; the other is an inverted pendulum control from the initial point begun tracking a sine curve, Even inverted pendulum angle according to the requirements of the sinusoidal changes.

主要分两个方面,一方面是使倒立摆从一个可控制的初始角度开始通过直接自适应模糊控制的方法使其重新稳定在零度角;另一方面是使倒立摆从一个可控制的初始角度开始使其跟踪一个正弦曲线,即使倒立摆的角度按所要求的正弦变化。

For further study to improve performance, an adaptive control algorithm based on Neural Network is tried in stabilization control. A new method of selecting the initial weights of Neural Network is put forward, which is that the coefficients of discrete equivalent of continuous transfer function in traditional control are used as the initial weights of Neural Network. Adaptive Neural Network control is combined with traditional control by using different method in different segment.

作为进一步提高稳定系统性能的探讨,对基于神经网络的参数自适应调整控制方法在稳定控制中的应用进行了研究,提出了将传统校正方法经离散化后所得到的数字控制算法的系数作为神经网络权值初值的新方法,并采用分段控制,将传统校正方法和神经网络控制方法相结合,取得了较好的控制效果。

Aimed at the problem of choosing the initial value when the Newton method is used to compute the controlling unstable equilibrium point, a practical and rigorous solving scheme was presented: by identifying the controlling load bus of the given fault, and using the Thevenin equivalent circuit to represent the rest of the system at the state of the post disturbance stable equilibrium point, using the steady equivalent circuit to represent the induction motor in composite load, and then using the torque characteristics of induction motor, a point near the CUEP is gained to be the initial value. The second order normal forms was used to approximate the stable manifold of CUEP, and the local approximating boundary of the region of attraction of the post disturbance stable equilibrium point was gained. Then just by simulating the state of the system at the fault clearing time, the transient voltage stability of the system could be determined.

针对采用牛顿法求取故障后系统主导不稳定平衡点(controlling unstable equilibrium point,CUEP)存在的初值选取难题,提出一种实用但不失严谨的解决方案:通过识别给定故障的主导负荷母线,对主导负荷母线以外系统由故障后稳定平衡点处的状态进行戴维南等值,对负荷中感应电动机部分采用其稳态等值电路,再由感应电动机的转矩特性求得CUEP附近的一个点作为近似的CUEP,以此为迭代初值可靠求得CUEP;采用二阶正规型来近似CUEP的稳定流形的方法求得近似的局部吸引域边界;由仿真得到故障清除时刻系统的状态并根据该状态是否位于吸引域内判断系统的暂态电压稳定性。

An initial spherical parameterization is firstly constructed by lifting planar parameterization to the sphere through the stereographic projection. Then we introduce an efficient approach based on bary centric coordinate to improve the initial spherical parameterization. At last, a uniform spherical parameterization is generated by a Moebius transformation.

通过立体投影将现有的平面参数化方法推广到球面上,得到一个初始的球面参数化;为了减小变形,引入质心坐标进行全局优化;最后用Moebius变换均匀化最终的球面网格。

The fourth is to adjust the initial probability estimate. Historical bidding experiences can be introduced into the model through the subjective probability judgment and the initial probability judgment can be adjusted. The model has been applied in the annual bidding dealings of northeast regional electricity market and results verify the practicability and effectiveness of the proposed model.

通过中标概率主观判断的概念把历史报价的经验引入到竞价策略模型中,并通过主观概率判断的演进实现对初始概率判断的调整从而实现发电商的经验报价趋近于真实值,在东北区域电力市场初期年度第一轮竞价交易中,算例结果验证了该方法的实用性和有效性。

However, various algorithms of MFD have a common shortcoming, that is, the initial iteration point must be feasible, so an auxiliary procedure must be considered for finding an initial feasible point, i.e., a system of nonlinear inequalities must be solved before using the method of feasible directions, which is not easy to be finished in generally, especially for large scale problems.

然而,各类可行方向算法有一共同的缺点,那就是初始迭代点必须可行,从而需要一个辅助程序来寻找一个初始可行点,即在运用可行方向法之前先要求解一非线性不等式组,而这个问题通常不易解决,特别是对于大规模问题而言。

Demand for initial recognition software systems analyst to confirm the initial business needs, as the basis for the contract confirmation.

需求初步确认软件系统分析师初步确认企业需求,作为合同确认的依据。

Initial phase compensation is also proposed for correct the initial phase and reduces the PLL lock time.

本文也提出了初始相差补偿的方法来减少PLL锁定时间。

Lack of make-up air, in the initial stage of fire, the release flow within transom window to reduce by 38.1% in the right side, and reduce by 39.4% in the left side, show that it is obvious that influencing fire initial stage.

迎风面窗户流量降低47.3%,背风面窗户则流量则增大45.6%,又以广岛式建筑的排气量受自然风影响较大。

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推荐网络例句

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活;以来,这是一个原则的和尚,作为有别于乞丐,该机构应自支撑,对外工作的这种或那种已一个必然的一部分,生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响,通过对船在规则波上随浪航行时,恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换,将船舶的横摇运动方程转换成标准形式的Mathieu方程。

I agree with you that three-fourths of al your road equipment should be replaced.

我同意你有关3/4的公路设备都要更换的建议。