TY - GEN
T1 - Experimental blast testing of a large 9-story structure equipped with a system of nonlinear energy sinks
AU - Wierschem, Nicholas E.
AU - Hubbard, Sean A.
AU - Luo, Jie
AU - Fahnestock, Larry A.
AU - Spencer, B. F.
AU - Quinn, D. Dane
AU - McFarland, D. Michael
AU - Vakakis, Alexander F.
AU - Bergman, Lawrence A.
PY - 2013
Y1 - 2013
N2 - In recent years the protection of structures from blasts has gained widespread attention with most of the effort on this subject focused on mitigating the local effects of the blast. With improved local protection, controlling the global response of structures subjected to impulsive types of loads is becoming increasingly important. In this paper, the passive mitigation of a structure's global response is examined through experimental blast tests of a large scale, 9-story structure equipped with a system of NESs. The system of NESs studied in this paper include two different types of devices, each of which employing a different type of restoring force; one type utilizes a smooth restoring force that is approximately cubic, while the other employs a linear restoring force coupled with one-sided vibroimpacts. The results of this study show that the passive NESs examined were capable of rapidly reducing the global response of the structure due to the blast loading. Additionally, the benefits of this passive system were demonstrated by its ability to reduce the peak demand on the structural system.
AB - In recent years the protection of structures from blasts has gained widespread attention with most of the effort on this subject focused on mitigating the local effects of the blast. With improved local protection, controlling the global response of structures subjected to impulsive types of loads is becoming increasingly important. In this paper, the passive mitigation of a structure's global response is examined through experimental blast tests of a large scale, 9-story structure equipped with a system of NESs. The system of NESs studied in this paper include two different types of devices, each of which employing a different type of restoring force; one type utilizes a smooth restoring force that is approximately cubic, while the other employs a linear restoring force coupled with one-sided vibroimpacts. The results of this study show that the passive NESs examined were capable of rapidly reducing the global response of the structure due to the blast loading. Additionally, the benefits of this passive system were demonstrated by its ability to reduce the peak demand on the structural system.
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U2 - 10.1115/DETC2013-12851
DO - 10.1115/DETC2013-12851
M3 - Conference contribution
AN - SCOPUS:84896920014
SN - 9780791855997
T3 - Proceedings of the ASME Design Engineering Technical Conference
BT - 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise
PB - American Society of Mechanical Engineers
T2 - ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2013
Y2 - 4 August 2013 through 7 August 2013
ER -