| 基于Hv方法的三轴液压振动系统频响函数估计的研究 |
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| 引用本文： | 杨志东,关广丰,丛大成,韩俊伟,李洪人.基于Hv方法的三轴液压振动系统频响函数估计的研究[J].地震工程与工程振动,2007,27(3):83-87. |
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| 作者姓名： | 杨志东 关广丰 丛大成 韩俊伟 李洪人 |
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| 作者单位： | 哈尔滨工业大学,黑龙江,哈尔滨,150001 |
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| 基金项目： | 教育部新世纪优秀人才支持计划项目（NCET-04-0325） |
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| 摘 要： | 三轴液压振动系统是实验室内模拟振动环境的主要设备,其主要功能是精确地复现给定的功率谱和时间历程。振动控制技术是实现这一目标的关键技术,它以频响函数估计为基础。频响函数估计的精度影响控制过程的快速性和稳定性。本文对几种典型的频响函数估计方法进行了分析,针对传统方法精度低且受到矩阵病态条件约束等缺点,应用特征分析与摄动理论构造了一种多入多出的Hv方法,并且应用三轴液压振动系统的实测数据对其进行了检验。结果表明该方法是适用的。
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| 关 键 词： | 三轴液压振动系统 功率谱 频响函数估计 Hv方法 |
| 文章编号： | 1001-1301（2007）03-0083-05 |
| 修稿时间： | 2006-12-112007-03-16 |
Frequency response function estimation for three axes hydraulic shaking system by using Hv algorithm |
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| YANG Zhidong,GUAN Guangfeng,CONG Dacheng,HAN Junwei,LI Hongren.Frequency response function estimation for three axes hydraulic shaking system by using Hv algorithm[J].Earthquake Engineering and Engineering Vibration,2007,27(3):83-87. |
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| Authors: | YANG Zhidong GUAN Guangfeng CONG Dacheng HAN Junwei LI Hongren |
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| Institution: | Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Three axes hydraulic shaking system as the means to recreate vibration environment can accurately reproduce reference power spectrum density and time history response.The vibration control is a key technique to meet the requirement.It is based on the frequency response function estimation that determines the speed and stability of control process.This paper analyses several classical frequency response function estimation algorithms.A kind of Hv algorithm is constructed on the basis of eigen-analysis and perturbation theory to overcome the shortcomings of conventional algorithms.Moreover,an experiment is carried out by using three axes hydraulic shaking table.Experiment results show that the Hv algorithm is suitable. |
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| Keywords: | three axes hraulic shaking system power spectrum density frequency response function estimation Hv algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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