本文以东风9内燃机车为例,分析了各种速度下的平稳性指数,并比较了线性模型和非线性模型的分析结果。
As an example, the riding index of diesel locomotive type DF 9 is calculated and the results of linear and nonlinear models of the locomotive are compared.
鉴于含有加性噪声的指数模型描述了一类重要的非线性随机系统。
The exponential models with additive noise describe a class of important nonlinear stochastic systems.
油液阻尼器受指数型高斯色噪声外激励时,活塞在油腔内的运动可用一阶非线性动力学方程描述。
The motion of plunger of oleo damper excited by colored Gaussian noise with exponential correlation time is governed by first order nonlinear differential equation.
运用泰勒展开的一阶近似估计推导过定点的指数曲线的非线性直接估计公式。
Nonlinear directly estimating formula for exponential curve which, through fixed point, was derived, by using first order approximation of Taylor expansion.
强度非线性有指数和对数两种描述形式。
Nonlinear strength is described by exponential and logarithmic mode.
提出一种非线性降维状态观测器设计方案,并从理论上证明了状态观测误差的指数收敛性。
A new design method of nonlinear reduced order state observer is proposed, and the exponential convergence is proved for the proposed state observer.
本文给出了复指数信号模型非线性最小二乘解的几何结构。
The geometric structure of nonlinear least squares solution for signals by complex exponents is offered in this paper.
对指数族非线性随机效应模型,本文首次利用Q函数进行统计诊断。主要创新性研究成果如下。
Q function have been used to study the statistical diagnostics for the exponential family nonlinear models with random effects.
本文中,我们提出了一个具有两种临界指数的非线性椭圆型方程问题,证明了狄氏问题的正径向解的存在性。
In this paper a problem of nonlinear elliptic equations involving two kinds of critical exponents is given, and also the existence of positive radiate solutions of the Dirichet problem is proved.
本文研究了厚度呈幂指数规律变化的变厚度圆饭的非线性强迫振动问题。
In this paper, the nonlinear forced vibration of circular plates with thicknesses varying according to power indexes are studied.
利用能量法证明了具耗散边界条件和时间依赖系数的非线性波方程的能量指数衰减性。
By using the perturbed-energy method, the exponential decay of the solution is obtained for the nonlinear wave equations with time-dependent coefficients and dissipative boundary condition.
布朗单一参数四次指数平滑能更好地跟踪时序的非线性变化趋势,达到更好的短期预测效果。
Quartic exponential smoothing method can follow the nonlinear trend of time series better and can also forecast better.
介绍分析了各种植被指数,利用非线性比自动提取植被信息。
Then the paper introduces vegetation indexes and extracts automatically the vegetation information through non-linear ratio.
阐述了股票市场价格指数所遵循的非线性确定系统规律的相关概念。
Some relative conceptions of non linear deterministic system law that the price indexes of stock market obeys are expounded.
以非线性弹簧-阻尼-质量块系统为研究对象,通过仿真计算,给出了系统健康监测数据与系统健康指数的对应关系。
The nonlinear spring-mass-dashpot system was used as the research object. The relation between system health monitoring data and health index was given through simulation.
为了探索这种活动机制,本文用基于非线性自激振动的指数自回归模型来研究这些特征。
To study this mechanism, we used the exponential autoregression model which is originated from non-linear auto-vibration.
该模型通过有限经验数据的学习,能够导出防砂前后采油指数与其影响因素的非线性关系。
Through learning the finite empirical data, the model can be used to derive the nonlinear correlation between the productivity index and its influencing factors both before and after sand control.
方法利用庞加莱截面、李雅普·诺夫指数、关联维等工具分别对抛物方程和椭圆方程的非线性动力学行为进行描述。
Methods Nonlinear dynamical behavior of both parabolic equation and elliptic equation were investigated by several tools such as Poincare section, Lyapunov exponent, and correlation dimension.
系泊运动的数学模型是一个具有指数回复力特性的非线性强迫振子,以波浪作用力为外激励。
The mathematic model was a nonlinear oscillator driven by wave exciting force while the restoring force was exponential.
利用非线性动力时程分析方法,对阻尼系数和阻尼指数进行了参数分析,并对阻尼器的布置位置进行了探讨。
Damping coefficient and damping exponent are chosen as two main parameters, whose sensitivity is discussed through non-linear dynamic time-history method.
针对模糊时滞系统,设计了非线性状态反馈控制器以确保闭环系统全局指数稳定。
Global exponential stability of fuzzy control systems with delays is studied, a nonlinear state feedback controller is designed to ensure the global exponential stability of the closed-loop system.
他说,泡沫警示标志是一种快于指数增长的讯号,由产生非线性增长的正反馈机制造成。
The telltale sign of a bubble, he says, is a faster than exponential growth rate caused by a positive feedback mechanism that generates this nonlinear growth.
用参数可分离非线性最小二乘拟合方法,根据少量测量数据较准确地求得了太阳电池双指数数学模型。
Solar cell both exponent mathematical model can be obtained exactly using a few measurement data by the least squares fitting method that parameter can be separated.
就非线性极大极小问题,阐明了极大熵方法与指数罚方法的关系。
The relation between the maximum entropy method and the exponential penalty function method is analysed in this paper.
其中带隙基准采用指数曲率补偿作为非线性补偿,具有很好的温度性能和高电源电压抑制比;
The bandgap reference uses the exponential curvature compensation as the nonlinear compensation and has the better temperature characteristic and high PSRR(Power Supply Rejection Ratio);
针对一类高阶不确定非线性系统,基于指数型快速终端滑模的良好特性,提出了一种新的滑模变结构控制。
Based on the good properties of exponential fast terminal sliding mode, a novel sliding mode variable structure control for high-order uncertain nonlinear systems is proposed.
斯拉格试验理论模型包括指数衰减模型、欠阻尼衰减模型和非线性模型。
The theoretical models for slug test include exponential decay model, underdamped model and nonlinear model.
利用锥映射的不动点指数定理,研究了一类非线性奇异边值问题多个正解的存在性问题。
This paper discusses the existence of multiple positive solutions of a class of nonlinear singular boundary value problems by means of the fixed point index Theorem on cones.
利用本文建立的指数衰减模型能够较好地描述材料的非线性塑性应变幅与寿命之间的关系。
A new exponential dissipation model is presented to describe this bilinear material's plastic strain amplitude-fatigue life relation.
利用核回归方法,建立股票成交量与价格的非线性分析模型。作为模型的应用,提出强弱弹性指数概念。
Applying the method of kernel regression, this paper puts forward a type of nonlinear model of stock volumes with prices.
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