TY - GEN
T1 - Effects of equipment loading on the vibrations of edge-stiffened plates and associated modeling issues
AU - Campbell, Robert L.
AU - Hambric, Stephen A.
PY - 2002
Y1 - 2002
N2 - Predicting structural radiated noise is a process that involves several steps, often including the development of a finite element (FE) model to provide structural response predictions. Limitations of these FE models often govern the success of overall noise predictions. The purpose of the present investigation is to identify the effects of real world attachments on edge-stiffened plates and identify advanced modeling methods to facilitate vibroacoustic analyses of such complex structures. A combination of experimental and numerical methods is used in the evaluation. The results show the effects of adding attachments to the edge-stiffened plate in terms of mode shape mass loading, creation of new mode shapes, modifications to original mode shapes, and variations in damping levels. A finite element model of the edge-stiffened plate with simplified attachments has been developed and is used in conjunction with experimental data to aid in the developments. The investigation presented here represents a necessary first step toward implementing an advanced modeling technique.
AB - Predicting structural radiated noise is a process that involves several steps, often including the development of a finite element (FE) model to provide structural response predictions. Limitations of these FE models often govern the success of overall noise predictions. The purpose of the present investigation is to identify the effects of real world attachments on edge-stiffened plates and identify advanced modeling methods to facilitate vibroacoustic analyses of such complex structures. A combination of experimental and numerical methods is used in the evaluation. The results show the effects of adding attachments to the edge-stiffened plate in terms of mode shape mass loading, creation of new mode shapes, modifications to original mode shapes, and variations in damping levels. A finite element model of the edge-stiffened plate with simplified attachments has been developed and is used in conjunction with experimental data to aid in the developments. The investigation presented here represents a necessary first step toward implementing an advanced modeling technique.
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U2 - 10.1115/IMECE2002-32692
DO - 10.1115/IMECE2002-32692
M3 - Conference contribution
AN - SCOPUS:78249233293
SN - 0791836436
SN - 9780791836439
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings
SP - 119
EP - 126
BT - Noise Control and Acoustics
PB - American Society of Mechanical Engineers (ASME)
ER -