• 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。

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  • Using concepts of invariable set and isolated cube, we obtained existence for bifurcate points of bounded solutions of second order ordinary differential systems including a parameter.

    用孤立不变集和孤立块的概念,给出了含一个参数的二阶常微分方程组的非驻定有界解分支点的存在性准则。

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  • 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。

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  • Some new voltage-mode second-order filters based on current feedback amplifier are proposed. The major merits of these circuits are multiple filtering function and adjustable parameter.

    构造了一些新的基于电流反馈放大器的电压模式双二阶滤波器,多滤波功能和参数可调是这些电路的主要优点。

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  • The application of the asymptotic solution of second order linear homogeneous equation with big parameter to studying the longitudinal and twisted vibrations of tapered sticks is discussed .

    讨论了含大参数的二阶线性方程的渐进解,并将其应用于楔型杆的纵振和扭振的研究。

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  • The second order perturbation solution for the flow of power-law fluid in stillness a helical pipe is obtained with curvature and torsion as small parameter.

    以曲率和挠率为小参数得到螺旋管道内幂律流体流动的二阶摄动解。

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  • The values you enter in the Query Parameters dialog box control two things: first, the order in which to display the parameters, and second, the data type to expect for each parameter.

    您在“查询参数”对话框中输入的值可以进行两方面的控制:第一是显示参数的顺序,第二是应为每个参数输入的数据类型。

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  • 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。

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  • The relation between the correlation function of intensity variation and surface roughness parameter is derived through analyzing the second-order statistical properties of the speckle image.

    分析此散斑图像的二阶统计特性,导出了强度变化的相关函数和表面粗糙度参数之间的关系。

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  • 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。

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  • The pressure drop pulsation is analyzed by using a lumped parameter nonlinear model. The results show that the pressure drop type instability can be described by a second-order differential equation.

    使用集总参数非线型模型来分析蒸发管中汽液两相流压力降型脉动,结果表明:压力降型不稳定性可以用二阶常微分方程来描述。

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  • Such as parameter estimation types of statistics distribution tests of distribution hypothesis methods of linear-second order moment, ect.

    数理统计学原理主要包括:参数估计、统计分布类型、分布拟合检验; 工程结构可靠度理论主要介绍了一次二阶矩方法。

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  • Such as parameter estimation types of statistics distribution tests of distribution hypothesis methods of linear-second order moment, ect.

    数理统计学原理主要包括:参数估计、统计分布类型、分布拟合检验; 工程结构可靠度理论主要介绍了一次二阶矩方法。

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