Show simple item record

dc.contributor.author许煌昊
dc.contributor.author刘朝
dc.contributor.author何明煜
dc.contributor.author雷鹰
dc.date.accessioned2016-05-17T03:04:18Z
dc.date.available2016-05-17T03:04:18Z
dc.date.issued2014-11-28
dc.identifier.citation厦门大学学报(自然科学版),2014,(6):72-75
dc.identifier.issn0438-0479
dc.identifier.otherXDZK201406015
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/108730
dc.description.abstract针对框架结构的绝对加速度响应部分观测、地震作用未观测的情况,提出一种多层剪切框架结构诊断的方法.该方法先依次采用扩展卡尔曼估计和递推最小二乘法对1层以上结构的扩展状态向量和未知作用力进行递推;然后利用结构频率特征方程,对第1层的结构参数进行估计;最后基于数值求解一阶微分方程,识别未观测的地震作用.通过1个4层框架试验,表明该方法能够很好地识别出结构参数和地震输入.
dc.description.abstractA method is proposed for the identification of multi-story shear buildings under unknown seismic excitation with partial observations of structural absolute acceleration responses.Based on sequential application of the extended Kalman estimator and the least squares estimation,structural parameters above the first story of a building can be identified.Then,structural parameters of the first story can be identified from the frequency equation.Finally,the unknown earthquake excitation can be identified via the numerical solution of a first-order differential equation.Lab experiments of a 4-story shear building on a shaking table test have validated that the proposed method can determine structural parameters and the earthquake excitation with satisfactory accuracy.
dc.description.sponsorship国家自然科学基金(51178406)
dc.language.isozh_CN
dc.subject结构参数识别
dc.subject未知地震力
dc.subject扩展卡尔曼估计
dc.subject最小二乘法
dc.subjectstructural parameter identification
dc.subjectunknown earthquake excitation
dc.subjectextended Kalman estimator
dc.subjectleast-square estimation
dc.title剪切框架在未知地震作用下的识别方法及试验验证
dc.title.alternativeIdentification Method for Shear Building Under Unknown Seismic Excitation with Experimental Validation
dc.typeArticle


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record