Yıl 2018, Cilt 21, Sayı 1, Sayfalar 55 - 65 2018-03-30

Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration

Sertaç Tuhta [1]

105 127

By using ambient vibration, a new approach based on improvement and correction of system characteristic matrix in modal vibration is provided. The result is that actual system characteristic matrices are accurately made such that the error is minimized at great extent. This clearly shows how the system parameters can be updated in a more reliable way. Firstly, by approximation, the actual system characteristic matrices are determined using the singular value decomposition of block Hankel matrix that is built from response correlation matrix. Secondly, by black-box modeling approximation, the input-output relation of the system through Kalman theory is made in order to make the system characteristic matrices optimal definite. Furthermore, by expressing Hankel matrix’s multiplicities from Eigen solution of the system state matrix obtained in previous iteration, it is possible to determine both the covariance of non-measurable process noise and measurement noise matrixes which are present in the Riccati equation. This means that both measurement and process covariance noises’ matrixes are indirectly built only from measured out-put data. The repetition of iterations is done until the error is sufficiently minimized. And then system modal parameters are extracted from these obtained system characteristic matrices. This system is used for modal update of the system in which modal parameters are applied directly and iterative methods. The code supporting this algorithm can be interfaced with the codes of the finite elements.

: Dynamic Parameters, Ambient Vibration, System Identification
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Birincil Dil en
Konular İnşaat Mühendisliği
Dergi Bölümü İnşaat Mühendisliği
Yazarlar

Yazar: Sertaç Tuhta
Ülke: Turkey


Bibtex @araştırma makalesi { ksujes344989, journal = {Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi}, issn = {}, eissn = {1309-1751}, address = {Kahramanmaraş Sütçü İmam Üniversitesi}, year = {2018}, volume = {21}, pages = {55 - 65}, doi = {10.17780/ksujes.344989}, title = {Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration}, key = {cite}, author = {Tuhta, Sertaç} }
APA Tuhta, S . (2018). Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 21 (1), 55-65. DOI: 10.17780/ksujes.344989
MLA Tuhta, S . "Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration". Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 21 (2018): 55-65 <http://jes.ksu.edu.tr/issue/33456/344989>
Chicago Tuhta, S . "Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration". Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 21 (2018): 55-65
RIS TY - JOUR T1 - Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration AU - Sertaç Tuhta Y1 - 2018 PY - 2018 N1 - doi: 10.17780/ksujes.344989 DO - 10.17780/ksujes.344989 T2 - Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi JF - Journal JO - JOR SP - 55 EP - 65 VL - 21 IS - 1 SN - -1309-1751 M3 - doi: 10.17780/ksujes.344989 UR - http://dx.doi.org/10.17780/ksujes.344989 Y2 - 2018 ER -
EndNote %0 Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration %A Sertaç Tuhta %T Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration %D 2018 %J Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi %P -1309-1751 %V 21 %N 1 %R doi: 10.17780/ksujes.344989 %U 10.17780/ksujes.344989
ISNAD Tuhta, Sertaç . "Optimal Determination of Structural Dynamical Parameters Using Ambient Vibration". Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 21 / 1 (Mart 2018): 55-65. http://dx.doi.org/10.17780/ksujes.344989