TY - GEN
T1 - Rapid identification of structural properties based on mass response method
AU - Zhou, K.
AU - Tang, J.
AU - Christenson, R.
PY - 2012
Y1 - 2012
N2 - This paper presents a vibration-based methodology of rapid identification of structural properties that can be utilized to assess the integrity of certain continuous structures after hazardous events. The methodology is built upon existing hardware such as shaker force generator and accelerometers that are both portable and convenient to use. The key idea is to use a known added mass that is placed at a certain location on the structure, and measure the modal information before and after the mass is added. Based on the assumed mode-based discretization, inverse identification of structural parameters can then be facilitated with the two sets of modal information, even without the a priori model/knowledge of the mass properties of the underlying structure. Case studies are carried out to demonstrate the feasibility in the identification of column stiffness in a simple emulated bridge structure.
AB - This paper presents a vibration-based methodology of rapid identification of structural properties that can be utilized to assess the integrity of certain continuous structures after hazardous events. The methodology is built upon existing hardware such as shaker force generator and accelerometers that are both portable and convenient to use. The key idea is to use a known added mass that is placed at a certain location on the structure, and measure the modal information before and after the mass is added. Based on the assumed mode-based discretization, inverse identification of structural parameters can then be facilitated with the two sets of modal information, even without the a priori model/knowledge of the mass properties of the underlying structure. Case studies are carried out to demonstrate the feasibility in the identification of column stiffness in a simple emulated bridge structure.
KW - Frequency response measurement
KW - Inverse identification
KW - Mass response method
KW - Structural identification
UR - http://www.scopus.com/inward/record.url?scp=84860791008&partnerID=8YFLogxK
U2 - 10.1117/12.915668
DO - 10.1117/12.915668
M3 - Conference article published in proceeding or book
AN - SCOPUS:84860791008
SN - 9780819490049
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Proceedings of SPIE - The International Society for Optical Engineering
T2 - Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012
Y2 - 12 March 2012 through 15 March 2012
ER -