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The research achievement can be applicable to the electrohydraulic servo system with asymmetric or symmetric cylinder.

本文不仅是数字控制的基础理论研究,同时也是电液伺服系统数字化的应用研究,其研究成果同样适用于具有对称缸或非对称缸的电液伺服系统。

It includes stability analysis and control of gyroscopic system, analog controller optimization, stability analysis of an active magnetic bearing rotor system based on a full-order or a reduced-order observer, and identification of dynamic coefficients of asymmetric system.

本文主要研究了主动磁轴承转子系统的稳定性、控制器设计和系统动特性参数辨识问题,包括陀螺效应对系统稳定性的影响和抑制方法;模拟控制器的设计和带全阶观测器的系统性能分析;对非对称结构系统动特性系数辨识的研究。

The Schur subspace iteration method is applied for the dynamic characteristic analysis of damped structure vibration system and coupled fluid-structure system. This method avoids complex computation and has good numerical stability. A accelerated technique and a pre-process method for the system matrix are suggested to improve the computational efficiency. The generalized uncoupled equation is obtained from the Schur matrix and a back substitution scheme of response computaton is developed.

第三部分将非对称特征值问题的Schur子空间迭代法应用于非经典阻尼结构振动系统和流固耦合系统的特征值分析,建立了相应的具体算法,并给出了用以提高迭代收敛速度的迭代加速和矩阵预处理等实用技术;利用Schur矩阵的结构特点,推导了系统方程的动力解耦形式,给出了响应计算的回代求解格式。

This thesis DESign steel wire tension control system of Steel Billet Grinding Machine, and establish mathematical model of every component in electro-hydraulic proportional valve control dissymmetry hydraulic cylinder servosystem and the load with large inertia and flexibility system of Grinding Machine. Through the medium of matlab/simulink simulation, this thesis mostly analyses Pre-load impact of steel wire stress. Compare with the emulation result of non-feedback, force feedback, displacement feedback, thereby educe reliable conclusion.

本文设计了钢坯修磨机钢丝绳张力控制系统,并且对电液比例阀控非对称液压缸伺服系统的所有液压元件和修磨机柔性负载系统进行了建模,通过MATLAB/SIMULINK仿真,主要分析了预紧力对钢丝绳受力的影响,而且对开环无反馈、力环反馈、位移反馈的仿真结果进行了比较、得出了可靠的结论。

For metal lens, we analyze the characteristics of imaging in the same way with left-handed lens, we separate the metal imaging system into to part : symmetric and asymmetric structure.

此外在金属成像的部份,我们利用同样的方法来探讨金属透镜的成像特性,并将金属成像系统分为对称结构与非对称结构分别来讨论。

It shows that it is possible to increase the start oscillation length by tailoring magnetic field's amplitude and its period without changing the synchronous condition of the fundamental wave; in the meantime, when there are two or more azimuthally asymmetric space harmonics in the high power broad-band helix TWTtraveling wave tu...

与此同时,对起振长度、初始非同步速度参量随皮尔斯增益参量、空间电荷参量、损耗参量等的变化,以及在超宽带行波管中当存在两个或多个角向非对称空间谐波时,起振长度、初始非同步速度参量随周期永久聚焦磁场的变化进行了研究。优化设计聚焦磁场、电子注和螺旋线慢波系统的参量可以对螺旋线行波管的稳定性分析提供必要的依据。

The systems include application sub-system and cretification authority, application sub-system apply symmetric and asymmetric cryptosystem and public-key certificate which was authoticated by CA and can certify the valid user-identity to set up secure communication channel, exchange session key and provide message integrity, confidetiality, authentication and nondeniability.

系统包括证书中心和应用子系统,证书中心签发证书用来证明用户的合法身份,应用子系统应用证书和对称、非对称密码体制,识别用户合法身份,建立了安全通信通道和交换会话密钥,实现了通信数据的完整性、保密性、真实性、不可否认性。

The results show that the relationship betweentotal potential energy and time step exhibits periodic characteristic when sigma-3symmetric twist grain boundary model and sigma-3 tilt grain boundary model slide atOK. But for sigma-13 asymmetric tilt grain boundary, the relationship between totalpotential energy and time step exhibits damp surge characteristic.

结果发现,∑3对称扭转晶界模型与∑3对称倾侧晶界模型在0K滑动时,系统的势能与计算步数之间的关系曲线呈现周期性变化的规律,而∑13非对称倾侧晶界模型系统的势能与计算步数之间的关系却呈现阻尼振荡特征的变化规律。

According to the asymmetry and nonlinearity of the symmetrical valve controlled asymmetrical piston system, in order to improve control precision of the system, the work characteristic of the system is analyzed, then a new control method based on the cerebellar model articulation controller is advanced, and the CMAC compound controller is designed.

针对对称阀控非对称缸系统的不对称性和非线性,为了提高系统控制精度,分析了该系统的工作特性,提出了基于小脑模型神经网络的控制策略,设计了CMAC复合控制器;为验证CMAC复合控制器的有效性,进行了实验研究,并与普通的PID控制器进行比较。

At First, the thesis researches the dynamic characteristic of servo valve, model of dynamical outfit about valve control unsymmetrical hydraulic ram, influence of the additional disturbing force and the systematic static error, on the base of analysis of fatigue testing machine system. Then the mathematical models of position control system and force control system are built. According to the principle of load-matching, the hydraulic dynamical outfit and power source system are designed and components are chosen. Then the correlative parameters of system model are calculated and the simulation study is carried out.

研究了伺服阀的动态特性、阀控非对称液压缸系统的动力机构模型、附加干扰力的影响以及系统静差,继而建立了位置控制系统和力控制系统的数学模型,并在此基础上计算系统相关参数,对系统进行了仿真研究,进一步分析了系统的稳定性和可控性。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。