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parameter   identification
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      The solubility parameter is usually determined at room temperature.
     通常溶度参数是在室温下测定的.
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     estimation of its parameter;
     评定运动模糊的参数;
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     and b was empirical parameter.
     b为经验常数。
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     Aerodynamic parameter identification of rapid self-rotating flight vehicle
     高速自旋飞行器气动参数辨识
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     Parameter ordinal optimization for simulated annealing with limited computational efforts
     有限计算量下模拟退火算法的参数序优化
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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)。

Moden filtering theory is an emerging interdisciplinary science concerning communication and control. It describes the statistical nature of information filtering in communication and control and provides ways of applications. This paper briefly describes problems of linear filtering, nonlinear filtering, parameter identification, ataptive filtering and stochastic control.

现代滤波理论是介乎通讯与控制之间的新兴边缘科学,它揭示了通讯与控制中信息过滤的统计本质,并提供了应用的途径。本文简述线性滤波、非线性滤波、参数识别、自适应滤波、随机控制诸问题。

Modal test and parameter identification of a wind tunnel flutter model,similar to a wing with external missiles,are presented in this paper.The emphasis is laid on the way of obtaining high reliability and accuracy of the results.By using our own developed identifiction program,which is based on complex mode theory,the first nine order modal parameters are identified with the help of digital computers.Four data ' examining approaches are applied to guarantee the reliability and accuracy of...

Modal test and parameter identification of a wind tunnel flutter model,similar to a wing with external missiles,are presented in this paper.The emphasis is laid on the way of obtaining high reliability and accuracy of the results.By using our own developed identifiction program,which is based on complex mode theory,the first nine order modal parameters are identified with the help of digital computers.Four data ' examining approaches are applied to guarantee the reliability and accuracy of test data and identified results.

本文介绍了带外挂风洞颤振模型模态试验与参数识别方法。重点放在如何提高结果的可靠性和精度上。利用我们研制的识别程序,在通用计算机上识别了前九阶模态的全部模态参数。采用了四种数据检验手段以保证试验数据和识别结果的可靠性与精度。

 
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