The damping ratio is an important characteristic parameter in a second-order system, which has great effect on the dynamic characteristic of the second order system.
阻尼比是二阶系统的一个重要的特征参数，它对二阶系统动态特性有较大的影响。
Consider the distributed parameter system described by the second order partial differential equation of composed type, we discuss its a boundary optimal control problem with quadratic performance.
考虑用二阶复合型偏微分方程所描述的分布参数系统，研究了它的一个使平方性能指标达到最小值的边界最优控制问题。
The vehicle steering system is a slowly varying non-linear system, in a short time interval, its dynamic characteristics can be described by a parameter-varying second-order linear system.
汽车转向系统是一个缓慢变化的非线性系统，在一个较短的时间间隔内，可以用一个参数时变的二阶线性系统对其动力学特性进行描述。
A linear integral invariant, a universal integral invariant and an absolute integral invariant of second order of the system are obtained under the given condition.
给出系统存在积分不变量的条件，在此条件下导出系统的线性积分不变量、通用积分不变量和二阶绝对积分不变量。
The existence of a homoclinic orbit for a singular second order planar Hamiltonian system is proved by using variational methods.
用变分方法证明了二阶奇异平面哈密顿系统的同宿轨道的存在性。
A model for simplified second order analysis of the double resistance to lateral force system is built on the basis to transform second order effect into negative stiffness.
为简化双重抗侧力体系二阶分析，将结构的二阶效应转化为结构的负刚度，从而建立分析模型。
By making use of monotone iterative technique, the iterative scheme and existence theorem of positive solution are established for a nonlinear second-order boundary value system.
利用单调迭代方法对一个非线性二阶边值系统建立了正解的迭代格式和存在性定理。
Valid dynamic sliding mode output that guarantees the system stable zero dynamics was constructed, and a global second order sliding mode control was adopted to circumvent chattering phenomena.
通过构造动态滑模输出，使得系统零动态稳定；采用全局二阶滑模控制来消除抖振。
Models of periodically inhomogeneous perturbations are made reasonedly in a quasi-ideal dispersion-managed soliton system, their effects on second-order soliton propagation are investigated.
在准理想的的色散管理系统中建立了非均匀扰动模型，研究了它们对二阶孤子传输的影响。
Underactuated manipulator system is a typical second-order nonholonomic dynamic systems and isn tan entirely controllable system.
欠驱动机械臂系统是一种典型的二阶非完整约束动力学系统，属于非完全可控系统。
The driveline for a tractor vehicle is simplified as a 2-DOFs(degree of freedom)torsional vibration system, and is described as a second-order differential equation.
将牵引车的传动系简化为一个2自由度的扭转振动系统，并以二阶微分方程描述。
The second pillar of European Solvency II proposes to adopt qualitative requirements and a globally appropriate risk management system, in order to supplement quantitative capital requirements.
欧盟偿付能力II的第二支柱计划采用定性要求和一个全球性适当的风险管理体系，来补充定量的资本要求。
The finite time feedback stabilization problem of a class of second order nonlinear system is discussed.
对一类二阶非线性系统的有限时间状态反馈镇定问题进行了讨论。
Because the signal processed by fuzzy controller is based on system behavior rather than its analytical model, open loop responses of a robot are described by a set of second order systems.
因为模糊逻辑控制器的控制信号是由系统的响应行为而不是由其分析模型决定的，所以机器人的开环响应可以用一系列二阶系统来描述。
The hydrogenation reaction of co and CO2 to synthesize methanol is a multiple reaction system. The distributions of concentrations are described by second order ordinary differential equations.
由CO、co_2加氢合成甲醇的反应是一个复合反应体系，其催化剂颗粒内的浓度分布的表征方程为二阶常微分方程组。
In this paper, the numerical results of burning gas flow in the vertical launch system of a rocket are reported. A second-order accurate MUSCL scheme is employed.
本文报导了火箭垂直发射系统燃气流场的数值计算结果，在计算中采用二阶精度的MUSCL格式。
In this paper a new concept of phase contrail of phase plane for higher order nonlinear control system based on isoclines method of second-order linear system is proposed.
提了基于二阶线性系统等倾线法绘制相平面原理，实现了高阶非线性控制系统相平面相轨迹的作图算法。
Second, construct a quality information feedback system with high efficiency and good order.
其次要构建一个高效、有序的质量信息反馈系统；
Based on the second-order coherence function theory, authors have studied nonlinear effects of third-and fifth-order on polarization beats in a cascade three-level system (TPBCTS and FPBCTS).
本文采用二阶相干函数理论研究了级联三能级系统中三阶及五阶极化拍频(TPBCTS及FPBCTS)的非线性效应。
This paper does research in the unstable second-order linear continuous system with a hysteresis nonlinear feedback.
本文对带有滞回非线性反馈的不稳定二阶线性系统进行了研究。
A least-squares mixed finite element methods for the first-order system formulation of second-order elliptic problems and a formulation for the infinite boundary conditions are presented.
研究了无穷边界的二阶椭圆问题，探讨了将其转化为一阶系统的最小二乘有限元逼近方法。
In Chapter One, a new method of approximating the solution of second-order parabolic system using reproducing kernel function is devised.
第一章研究了一类二阶抛物型方程组的一种新数值方法-再生核函数法。
This article makes use of variable gradient method and structure Lyapunov Function to solve a kind of global asymptotic stability for solutions of non-linear system of the second order.
用变量梯度法构造李雅普·诺夫函数，解决一类二阶非线性系统解的全局渐近稳定性问题。
The Solutions of a kind of strongly nonlinear system with quadratic and cubic nonlinearities are derived by means of the MLP method, and its second order approximate solutions are obtained.
用MLP方法求解一类同时具有二次和三次项的强非线性系统的自由振动问题，得到其二级近似解。
In this paper, we report a pulsed digital micro-holography system for recording ultra-fast process of the order of femto-second.
采用脉冲数字全息技术实现对飞秒级超快动态过程的数字显微全息记录。
The governing equations for the problem is modified into a second-order nonlinear differential system with two infinitesimal parameters and a double parameter multiple scale method is presented.
将该问题的基本方程化为具有两个小参数的二阶非线性方程组，并在双参数摄动法和单参数多重尺度法的基础上提出了双参数多重尺度法。
In order to verify that someone entering that user id really is that peon, a second identification, the password, known only to that peon and to the system itself, is entered by the user.
为了验证有人进入用户ID是雇农，第二个识别、密码，只知道雇农和系统本身，由用户输入。
A digital circuit implementing pulse width modulation controls power delivered in what one can model as a second order or higher order system.
一种数字电路实现的脉冲宽度调制控制在可以将其建模为二阶或更高阶系统的系统中传输的电力。
A digital circuit implementing pulse width modulation controls power delivered in what one can model as a second order or higher order system.
一种数字电路实现的脉冲宽度调制控制在可以将其建模为二阶或更高阶系统的系统中传输的电力。
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