System identification, model updating and simulation

Abbas Kazemi Amiri, Kosmas Dragos, Andreia MEIXEDO, Cristiana BONIFÁCIO, Alireza SASSANI, Sebastian SCHOMMER, Nikolay MAKISHA, Maher DEEB, Volkmar ZABEL

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

During the Weimar Summer School course “Model Validation and Simulation” the project “System Identification, Model Updating and Simulation” has been performed. The project was about modal analysis of civil structures. As an example a down scaled “tower” was given. This tower was made of PVC water pipes, with a basement of concrete. Four acceleration sensors had been placed on the pipe by pipe clamps. So it was possible to measure the response of the structure for different excitations. Impulse forces were applied using a hammer from different directions. The force excitation in Newton and the resulting accelerations given by the sensors in m/s² have been recorded. For the measurements the sensors had been arranged in different setups with one sensor as reference, so it was possible to combine the setups later. The measured response was analyzed in order to identify the modal parameters including the natural frequencies, the mode shapes and the damping ratios of the structure using MACEC toolbox. Parallel to the real measurements a simulation has been prepared. The first step was to create two FEA models of the structure using the software packages ANSYS and SLang. The aim was to compare the results calculated by the different software. In the models were developed using beam elements considering the material properties of a PVC pipe. The models were used to calculate the modal parameters of the tower.
LanguageEnglish
Title of host publicationModel Validation and Simulation
Subtitle of host publicationGraduate Courses for Structural Engineering Application ; 4th-16th August 2013 ; Bauhaus Summer School
EditorsLars Abrahamczyk
Place of PublicationWeimar, Germany
Chapter2
Pages16-40
Number of pages25
VolumeII
ISBN (Electronic)978-3-95773-177-7
Publication statusPublished - 30 Sep 2014

Fingerprint

Identification (control systems)
Pipe
Towers
Sensors
Polyvinyl chlorides
Hammers
Clamping devices
Modal analysis
Software packages
Natural frequencies
Materials properties
Damping
Concretes
Finite element method
Water

Keywords

  • system identification
  • model updating
  • model simulation

Cite this

Kazemi Amiri, A., Dragos, K., MEIXEDO, A., BONIFÁCIO, C., SASSANI, A., SCHOMMER, S., ... ZABEL, V. (2014). System identification, model updating and simulation. In L. Abrahamczyk (Ed.), Model Validation and Simulation: Graduate Courses for Structural Engineering Application ; 4th-16th August 2013 ; Bauhaus Summer School (Vol. II, pp. 16-40). Weimar, Germany.
Kazemi Amiri, Abbas ; Dragos, Kosmas ; MEIXEDO, Andreia ; BONIFÁCIO, Cristiana ; SASSANI, Alireza ; SCHOMMER, Sebastian ; MAKISHA, Nikolay ; DEEB, Maher ; ZABEL, Volkmar. / System identification, model updating and simulation. Model Validation and Simulation: Graduate Courses for Structural Engineering Application ; 4th-16th August 2013 ; Bauhaus Summer School. editor / Lars Abrahamczyk. Vol. II Weimar, Germany, 2014. pp. 16-40
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Kazemi Amiri, A, Dragos, K, MEIXEDO, A, BONIFÁCIO, C, SASSANI, A, SCHOMMER, S, MAKISHA, N, DEEB, M & ZABEL, V 2014, System identification, model updating and simulation. in L Abrahamczyk (ed.), Model Validation and Simulation: Graduate Courses for Structural Engineering Application ; 4th-16th August 2013 ; Bauhaus Summer School. vol. II, Weimar, Germany, pp. 16-40.

System identification, model updating and simulation. / Kazemi Amiri, Abbas; Dragos, Kosmas; MEIXEDO, Andreia ; BONIFÁCIO, Cristiana ; SASSANI, Alireza ; SCHOMMER, Sebastian ; MAKISHA, Nikolay ; DEEB, Maher; ZABEL, Volkmar.

Model Validation and Simulation: Graduate Courses for Structural Engineering Application ; 4th-16th August 2013 ; Bauhaus Summer School. ed. / Lars Abrahamczyk. Vol. II Weimar, Germany, 2014. p. 16-40.

Research output: Chapter in Book/Report/Conference proceedingChapter

TY - CHAP

T1 - System identification, model updating and simulation

AU - Kazemi Amiri, Abbas

AU - Dragos, Kosmas

AU - MEIXEDO, Andreia

AU - BONIFÁCIO, Cristiana

AU - SASSANI, Alireza

AU - SCHOMMER, Sebastian

AU - MAKISHA, Nikolay

AU - DEEB, Maher

AU - ZABEL, Volkmar

PY - 2014/9/30

Y1 - 2014/9/30

N2 - During the Weimar Summer School course “Model Validation and Simulation” the project “System Identification, Model Updating and Simulation” has been performed. The project was about modal analysis of civil structures. As an example a down scaled “tower” was given. This tower was made of PVC water pipes, with a basement of concrete. Four acceleration sensors had been placed on the pipe by pipe clamps. So it was possible to measure the response of the structure for different excitations. Impulse forces were applied using a hammer from different directions. The force excitation in Newton and the resulting accelerations given by the sensors in m/s² have been recorded. For the measurements the sensors had been arranged in different setups with one sensor as reference, so it was possible to combine the setups later. The measured response was analyzed in order to identify the modal parameters including the natural frequencies, the mode shapes and the damping ratios of the structure using MACEC toolbox. Parallel to the real measurements a simulation has been prepared. The first step was to create two FEA models of the structure using the software packages ANSYS and SLang. The aim was to compare the results calculated by the different software. In the models were developed using beam elements considering the material properties of a PVC pipe. The models were used to calculate the modal parameters of the tower.

AB - During the Weimar Summer School course “Model Validation and Simulation” the project “System Identification, Model Updating and Simulation” has been performed. The project was about modal analysis of civil structures. As an example a down scaled “tower” was given. This tower was made of PVC water pipes, with a basement of concrete. Four acceleration sensors had been placed on the pipe by pipe clamps. So it was possible to measure the response of the structure for different excitations. Impulse forces were applied using a hammer from different directions. The force excitation in Newton and the resulting accelerations given by the sensors in m/s² have been recorded. For the measurements the sensors had been arranged in different setups with one sensor as reference, so it was possible to combine the setups later. The measured response was analyzed in order to identify the modal parameters including the natural frequencies, the mode shapes and the damping ratios of the structure using MACEC toolbox. Parallel to the real measurements a simulation has been prepared. The first step was to create two FEA models of the structure using the software packages ANSYS and SLang. The aim was to compare the results calculated by the different software. In the models were developed using beam elements considering the material properties of a PVC pipe. The models were used to calculate the modal parameters of the tower.

KW - system identification

KW - model updating

KW - model simulation

M3 - Chapter

VL - II

SP - 16

EP - 40

BT - Model Validation and Simulation

A2 - Abrahamczyk, Lars

CY - Weimar, Germany

ER -

Kazemi Amiri A, Dragos K, MEIXEDO A, BONIFÁCIO C, SASSANI A, SCHOMMER S et al. System identification, model updating and simulation. In Abrahamczyk L, editor, Model Validation and Simulation: Graduate Courses for Structural Engineering Application ; 4th-16th August 2013 ; Bauhaus Summer School. Vol. II. Weimar, Germany. 2014. p. 16-40