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parameter identification methods
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  参数辨识方法
     Two parameter identification methods, the correlation method and the least square method, are researched in this paper.
     本文研究了两种经典的参数辨识方法
短句来源
     It is also compared with the traditional parameter identification methods by computer digital simulation.
     文中还通过计算机仿真与传统的参数辨识方法进行了分析比较。
短句来源
     Theoretical analysis and experimental research show that the model and the parameter identification methods are practical and feasible.
     理论分析和实验研究表明该模型及其参数辨识方法是实用的、可行的 .
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     During the process of identification,as to solve the problems of conventional parameter identification methods,when apply to the parameter identification of the steam tur- bine speed governor system,we adapted a kind of parameter identification method based on the genetic algorithm,and real- ize it by matlab and its simulink toolbox.
     在辨识过程中,针对常规参数辨识方法在进行汽轮机调速系统模型参数辨识时所遇到的困难,采用了一种基于遗传算法的模型参数辨识方法,并利用Matlab及其simulink工具箱予以实现。
短句来源
  参数识别方法
     Advances in study on parameter identification methods for environmental models
     环境模型参数识别方法研究综述
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     Based on the optimization technique,two transfer function and modal parameter identification methods are described.
     在最优化方法基础上提出了两种传递函数和模态参数识别方法.
短句来源
     The material parameters of orthotropic composite structures can be efficiently evaluated by parameter identification methods,which integrate experimental techniques,numerical methods and optimization techniques.
     融合实验测量技术、数值计算方法和优化技术的参数识别方法是获取正交各向异性复合材料结构的材料参数的有效途径。
短句来源
     In the paper some structural modal parameter identification methods which are based on ambient excitation are introduced. These methods include Time Series,APMA Modal,Stochastic subspace,NExT,IMD,and Time-Frequency Methods. Their specialties are compared.
     本文首先对环境激励下模态识别方法进行了综述 ,对目前的几种识别方法的原理、识别精度及适用条件进行了论述 ,并比较了这些方法各自的特点 ,参照国内外最新文献 ,提出环境激励下模态参数识别方法需解决的关键问题及研究发展方向
短句来源
     So,it is imperative to study some new parameter identification methods.
     因此,研究新的试井解释参数识别方法势在必行。
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  参数辨识
     Study on Parameter Identification Methods and Digital Control Technology for AC Induction Motor
     交流感应电机的参数辨识及数字控制技术研究
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     Here two parameter identification methods are proposed: 1) Based on the principle of the orthogonality among filter residuals, a parameter identification method is proposed, which results in Parameter-Identification Based Filter (PIBF).
     本文使用两种方法进行参数辨识:1)从滤波残差正交性原理出发,推导出参数自适应辨识滤波器—PIBF;
短句来源
     Theoretical analysis and experimental research show that the model and the parameter identification methods are practical and feasible.
     理论分析和实验研究表明该模型及其参数辨识方法是实用的、可行的 .
短句来源
     This article associates the numerical simulation and theoretical analysis, based on the related knowledge of temperature field of deep earth freezing method, combined with parameter identification methods, simulates the deep freezing temperature field by ANSYS finite elements and researches its equivalent average heat conductivity by back-analysis.
     本文采用数值模拟计算和理论分析相结合的方法,以深土冻结法施工温度场相关知识为基础,结合参数辨识的方法,对深土冻结温度场的分布进行了ANSYS有限元数值模拟,通过反分析对其等效平均导热系数进行了研究和探讨。
短句来源
     It is also compared with the traditional parameter identification methods by computer digital simulation.
     文中还通过计算机仿真与传统的参数辨识方法进行了分析比较。
短句来源
更多       
  “parameter identification methods”译为未确定词的双语例句
     These material parameters could be efficientlyevaluated by parameter identification methods, which integrate experimentaltechniques, numerical analysis and optimization techniques.
     融合测量技术、数值分析方法和优化技术的参数识别技术是获取这些材料参数的有效途径。
短句来源
     Parameter Identification Methods for A Functionally Gradient Piezoelectric Material
     梯度功能压电材料的一组参数识别
短句来源
     In this paper, the problem is investgated that why damping coefficients are difficult to be identified accurately by time domain structure parameter identification methods, some suggestions are proposed to improve the identification accuracy of damping coefficients.
     本文分析了为何在应用时域方法识别结构参数时,阻尼系数往往是难以识别精确的,提出了一些提高阻尼系数识别精度的措施。
短句来源
     In this paper,the Time Domain Multi-input-Multi-output modal parameter identification methods developed in the recent ten years,such as Direct Parameter Model meth- od,Polyreference method,Ibrahim Time Domain method and Eigensystem Realization Algorithm,are shown all on the same mathematical model——unifying discrete difference mod- el,and the relation among all these technigues is given clearly.
     本文在多输入——多输出实验模态参数识别技术离散统一模型的基础上,介绍了几种得到广泛应用的多输入——多输出实验模态参数时域识别技术,如直接参数模型识别法,Polyreference 识别法,Ibrahim 时域法和特征系统实现算法(ERA),并将这几种算法统一在一个基本的数学模型—离散的统一模型上,指出了这几种识别方法相互之间的联系。
短句来源
     Parameter identification methods for both the free energy hysteresis model and the dynamic model are investigated. Inverse compensation techniques for the dynamic free energy model for hysteresis are
     本文采用理论建模、数字仿真与实验研究相结合的研究路线,以自由能磁滞模型为基础,研究了考虑涡流损失的动态磁滞模型,建立了补偿非线性和磁滞的控制方法,本文的主要内容如下:
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  parameter identification methods
It produces reasonable results for noisy multi-source models than the other parameter identification methods (inverse solution, power spectrum, etc.).
      
Several handicaps, however, still exist in MIMO modal parameter identification methods.
      


The mechanical impedance technique has been widely used for vibration analysis in the field of aerospace and mechanical engineering during the last twenty years.On the basis of the experiences of our own and abroad, this paper tries to give .1 comprehensive survey of this combined experimental and analytical procedure.It chiefly contains the modern concept of mechanical impedance (its description in the case of various excitation, impedance and mobility matrix in structural dynamics and its relation to modal...

The mechanical impedance technique has been widely used for vibration analysis in the field of aerospace and mechanical engineering during the last twenty years.On the basis of the experiences of our own and abroad, this paper tries to give .1 comprehensive survey of this combined experimental and analytical procedure.It chiefly contains the modern concept of mechanical impedance (its description in the case of various excitation, impedance and mobility matrix in structural dynamics and its relation to modal analysis); the measurement and instrumentation technique with stationary sine, transient and random excitation; graphical and digital modal parameter identification methods; combined structural system analysis (dynamic characteristics, instability and response analysis)approachs.

近二十年来机械阻抗技术在振动分析中获得广泛应用,领域遍及航空、航天和各种机械工程。本文力图根据我们的工作和国外资料对这一理论与试验相结合的工程振动分析方法作一较全面综合介绍。主要内容包括:机械阻抗的现代概念(各种激振情况下机械阻抗的描述,结构动力学中阻抗和导纳矩阵及其与模态分析的关系);稳态正弦和瞬态、随机机械阻抗测试技术;图解和计算机模态参数识别以及组合结构系统分析(包括动力特性、动力稳定性和动力响应)。

Starting from complex mode theory of viscous damped structural systems withmultiple degrees of freedom,the general analytic relationship between the structuraltransfer function and modal parameters is derived.Based on the optimization technique,two transfer function and modal parameter identification methods are described.Identi-fication accuracy and scope of application are verified on computer experiments.Anexample of the application to actual structure is given.

本文从任意粘性阻尼离散化线性结构系统的复模态理论出发,建立了结构系统传递函数与模态参数的一般解析关系式.在最优化方法基础上提出了两种传递函数和模态参数识别方法.用计算机试验、检验了两种识别算法的精度和使用范围.给出了真实结构识别全过程的实例.

Based on the hydraulics of bottom outlets as well as lots of repeated prototype observations of the tainter gate vibratlon, this paper discusses the causes and characteristics of vibration in the working gate and the effectiveness of the measures taken. The dynamic characteristics of the gate structure system are analyzed by the modal-parameter identification method, and average modal parameters such as frequency, damp and vibration mode are given. The theory of random functions is used to analyze...

Based on the hydraulics of bottom outlets as well as lots of repeated prototype observations of the tainter gate vibratlon, this paper discusses the causes and characteristics of vibration in the working gate and the effectiveness of the measures taken. The dynamic characteristics of the gate structure system are analyzed by the modal-parameter identification method, and average modal parameters such as frequency, damp and vibration mode are given. The theory of random functions is used to analyze the statistical properties of hydraulic pressure fluctuations both in time and frequency domains and their transmission characteristics at the outlet entrance, and the noise spectra of the flow as well. The statistical properties of vibration of the gate structure system induced by fluid flow are analyzed on the basis of the concept of random vibration. The power spectra of vibration and dynamic stress are given. Furthermore, a preliminary of the transmission of dynamic forces in made. Finally, the effectiveness of the measures is discussed.

本文根据皎口水库底孔弧门振动多次原型的观测资料,讨论工作弧门的振动原因、性质及工程措施的效果。应用模态参数识别的方法,分析了闸门结构系统的动特性。用随机函数理论分析了底孔进口动水压力脉动在时域与频域的统计特征及其传递特性,以及水流的噪声谱。利用随机振动概念分析了流动激起的闸门系统振动的统计特征。最后,讨论了工程措施的效果。

 
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