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Papers by Bayram Aygun

Research paper thumbnail of Seismic Vulnerability of Bridges Susceptible to Spatially Distributed Soil Liquefaction Hazards

Structures Congress 2009, 2009

Authors: Bayram Aygün, Rice University, Houston, TX, ba2@rice.edu. Leonardo Dueñas-Osorio, Rice U... more Authors: Bayram Aygün, Rice University, Houston, TX, ba2@rice.edu. Leonardo Dueñas-Osorio, Rice University, Houston, TX, leonardo.duenas-osorio@rice.edu. Jamie E. Padgett, Rice University, Houston, TX, Jamie.Padgett@rice.edu. ... Shin et al. ...

Research paper thumbnail of Decentralized Wireless Structural Sensing and Control Using Genetic Algorithm Optimization

This study explores decentralized structural contro l using wireless sensors and controllers. In ... more This study explores decentralized structural contro l using wireless sensors and controllers. In a decentralized control scheme, control decision s are based upon data acquired from sensors located in the vicinity of a control device. Speci fically, this paper studies a time-delayed decentralized structural control strategy that aims to minimize the H2 norm of a closed-loop control system. For decentralized control design, one chal lenge is the non-convexity of the optimization problem caused by a decentralized architecture. A combined homotopic approach with a stochastic genetic search algorithm is explored in this resear ch for designing decentralized structural controlle s with minimal closed-loop H2 norm. Multiple decentralized control architecture s are implemented with a network of wireless sensing and control devi c s. The wireless sensing and control system is installed on a six-story laboratory steel structure controlled by magnetorheological (MR) dampers. The sensor networ...

Research paper thumbnail of Efficient seismic fragility assessment of highway bridges on liquefiable soils

... DesRoches for being responsible for the academic development of two brilliant people: Dr. Due... more ... DesRoches for being responsible for the academic development of two brilliant people: Dr. Duenas-Osorio and Dr. Padgett; Atila, Ertan, Ozkan, §ule, Atilla ... for making me realize how enjoyable life can become if one has a loving sister; and my little brother, Hasan Berk Aygun, ...

Research paper thumbnail of Efficient seismic fragility assessment of highway bridges on liquefiable soils

... DesRoches for being responsible for the academic development of two brilliant people: Dr. Due... more ... DesRoches for being responsible for the academic development of two brilliant people: Dr. Duenas-Osorio and Dr. Padgett; Atila, Ertan, Ozkan, §ule, Atilla ... for making me realize how enjoyable life can become if one has a loving sister; and my little brother, Hasan Berk Aygun, ...

Research paper thumbnail of Efficient Longitudinal Seismic Fragility Assessment of a Multi-Span Continuous Steel Bridge on Liquefiable Soils

Journal of Bridge Engineering, 2010

Research paper thumbnail of Aygun et al 2011 Efficient Longitudinal Seismic Fragility Assessment of a Multispan Continuous Steel Bridge on Liquefiable Soils ASCE JB

Research paper thumbnail of Seismic Vulnerability of Bridges Susceptible to Spatially Distributed Soil Liquefaction Hazards

Structures Congress 2009, 2009

Authors: Bayram Aygün, Rice University, Houston, TX, ba2@rice.edu. Leonardo Dueñas-Osorio, Rice U... more Authors: Bayram Aygün, Rice University, Houston, TX, ba2@rice.edu. Leonardo Dueñas-Osorio, Rice University, Houston, TX, leonardo.duenas-osorio@rice.edu. Jamie E. Padgett, Rice University, Houston, TX, Jamie.Padgett@rice.edu. ... Shin et al. ...

Research paper thumbnail of Decentralized Wireless Structural Sensing and Control Using Genetic Algorithm Optimization

This study explores decentralized structural contro l using wireless sensors and controllers. In ... more This study explores decentralized structural contro l using wireless sensors and controllers. In a decentralized control scheme, control decision s are based upon data acquired from sensors located in the vicinity of a control device. Speci fically, this paper studies a time-delayed decentralized structural control strategy that aims to minimize the H2 norm of a closed-loop control system. For decentralized control design, one chal lenge is the non-convexity of the optimization problem caused by a decentralized architecture. A combined homotopic approach with a stochastic genetic search algorithm is explored in this resear ch for designing decentralized structural controlle s with minimal closed-loop H2 norm. Multiple decentralized control architecture s are implemented with a network of wireless sensing and control devi c s. The wireless sensing and control system is installed on a six-story laboratory steel structure controlled by magnetorheological (MR) dampers. The sensor networ...

Research paper thumbnail of Efficient seismic fragility assessment of highway bridges on liquefiable soils

... DesRoches for being responsible for the academic development of two brilliant people: Dr. Due... more ... DesRoches for being responsible for the academic development of two brilliant people: Dr. Duenas-Osorio and Dr. Padgett; Atila, Ertan, Ozkan, §ule, Atilla ... for making me realize how enjoyable life can become if one has a loving sister; and my little brother, Hasan Berk Aygun, ...

Research paper thumbnail of Efficient seismic fragility assessment of highway bridges on liquefiable soils

... DesRoches for being responsible for the academic development of two brilliant people: Dr. Due... more ... DesRoches for being responsible for the academic development of two brilliant people: Dr. Duenas-Osorio and Dr. Padgett; Atila, Ertan, Ozkan, §ule, Atilla ... for making me realize how enjoyable life can become if one has a loving sister; and my little brother, Hasan Berk Aygun, ...

Research paper thumbnail of Efficient Longitudinal Seismic Fragility Assessment of a Multi-Span Continuous Steel Bridge on Liquefiable Soils

Journal of Bridge Engineering, 2010

Research paper thumbnail of Aygun et al 2011 Efficient Longitudinal Seismic Fragility Assessment of a Multispan Continuous Steel Bridge on Liquefiable Soils ASCE JB

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