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parameter estimating
相关语句
  参数估计
    The reliability indexes of the valve such as shape parameter,characteristic life,and average life has been gained by parameter estimating.
    通过参数估计得到其形状参数、特征寿命、平均寿命等可靠性指标。
短句来源
    When statistical process control(SPC) is used in a small batch manufacturing process,a critical problem is how to fully acquire and utilize information about process(including existing objective data and empirical judgment) According to this question,an algorithm of dynamic quality control based on Bayesian decision-theorem is introduced,and those procedures such as dynamic modelling,parameter estimating and model interrupting are described in detail At last,a case study is given
    针对小批量制造过程中统计质量控制 (SPC)所面临的突出问题 ,即如何充分利用有关过程的信息 (包括客观的历史数据和主观的经验与判断 ) ,提出应用贝叶斯预测理论的动态质量控制方法 ,着重讨论这一方法的动态建模、参数估计、模型干预方法和实施步骤等 ,并进行工程应用。
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  parameter estimating
Application of martingale arguments to the regression parameter estimating function show the Breslow (1974) estimator to be consistent and asymptotically Gaussian under this model.
      
Compared with other traditional methods, this control law reduces on-line parameter estimating burden.
      
The 15 L volume provides sufficient biomass to conduct parameter-estimating experiments from a BNR-functioning biomass.
      
This concept is consistent with low-order autoregressive linear models, and is routinely used for parameter estimating.
      


This article reveals the existence of the error region in harmonic analysis and roundness evaluation and the distartion of results in parameter estimate and harmonic components in the error region. This error region can be characterized by mathematical approximate pattern, nonlinear abandonment error, mixing artificial eccentricity and first harmonic, and difference of evaluation standard from the least condition standard of tolerance definition. Also the method for removing the error region is given i.e.,...

This article reveals the existence of the error region in harmonic analysis and roundness evaluation and the distartion of results in parameter estimate and harmonic components in the error region. This error region can be characterized by mathematical approximate pattern, nonlinear abandonment error, mixing artificial eccentricity and first harmonic, and difference of evaluation standard from the least condition standard of tolerance definition. Also the method for removing the error region is given i.e., the method of minimizing norm of a maximal module and the corresponding system of computer aided analysis.

本文揭示了谐波分析与圆度评价中误区的存在性以及误区中参数估计与谐波分量提取的结果失真性,这种误区可以表征为数学模型的近似、非线性舍去误差、人为偏心与一次谐波的混合、评价准则与标准公差定义的最小条件准则的差异。本文还给出了对误区的相应消除对策,即最大模范数最小法及其计算机辅助分析系统。

In this paper,a time cost power saving test table has been designed on the conclusion that the life span of pilot type pressure relief valve is mainly decided by the life of its pilot valve.On the basis of this knowledge,accelerated life test of the valve under impact load has been completed on the built table.By analyzing the obtained test data,conclusion has been reached that the failure probability density function of the valve is a...

In this paper,a time cost power saving test table has been designed on the conclusion that the life span of pilot type pressure relief valve is mainly decided by the life of its pilot valve.On the basis of this knowledge,accelerated life test of the valve under impact load has been completed on the built table.By analyzing the obtained test data,conclusion has been reached that the failure probability density function of the valve is a two parameter Weibull distribution.The reliability indexes of the valve such as shape parameter,characteristic life,and average life has been gained by parameter estimating.

本文根据导阀寿命是决定溢流阀可靠性的主要因素这一特点,设计了一个省时、省力、节约能源的试验台。在此基础上对溢流阀进行了在冲击载荷下的加速寿命试验。试验数据分析表明,溢流阀的失效概率密度函数为两参数Weibul分布。通过参数估计得到其形状参数、特征寿命、平均寿命等可靠性指标。

With the development of malfunction diagnostic technique,some achievements in the research of sliding bearing non-linearity dynamics' characteristic have been gained.The methods of recognizable mode and estimate parameter were introduced in this paper,in which the input was given,output should be calculated and the characters of bearing should be regarded as “black box”.The sliding bearing non-linearity dynamics' characteristics were studied based on the methods with which the linearity model's rigidity...

With the development of malfunction diagnostic technique,some achievements in the research of sliding bearing non-linearity dynamics' characteristic have been gained.The methods of recognizable mode and estimate parameter were introduced in this paper,in which the input was given,output should be calculated and the characters of bearing should be regarded as “black box”.The sliding bearing non-linearity dynamics' characteristics were studied based on the methods with which the linearity model's rigidity coefficient and damping coefficient can be improved according to the theoty of system-recognize and parameter-estimate.

随着故障转子动力学理论研究的深入和故障诊断技术的发展 ,转子系统非线性振动的研究越来越重要 .在给定输入的情况下 ,将滑动轴承特性视为“黑盒子” ,以模式识别与参数估计的方法计算输出 ,基于系统识别和参数估计理论改进线性模型的刚度系数和阻尼系数 ,建立一种在线性模型基础上的改进模型 ,可以得到轴承特性较好的表征 .对滑动轴承油膜非线性动态特性的深入研究作一探讨 .

 
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