Abstract
Vibration testing is necessary for functionality and durability evaluations of equipment that may undergo performance degradation due to operational vibrations. Here, we propose a planning method for the vibration testing of equipment with high slenderness ratios, such as missiles, and excitation, support, and measurement locations are important factors for the test configuration. A finite element model was used to calculate the normal modes and suitability indexes, based on the excitation and support locations. The measurement locations were obtained via the effective-independence method. Indexes of the response of dominant modes to excitation were generated for each surface through vibration testing involving various excitation, support, and measurement locations. The suitability indexes of excitation and support locations, exhibited a high correlation with the indexes of response magnitude in the dominant modes of the equipment. Therefore, the vibration test configuration can be planned effectively by exciting dominant modes of equipment under test.
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Acknowledgments
This research was supported by the Infrastructure Building Program through the Korea Agency for Infrastructure Technology Advancement (KAIA), which is funded by the Ministry of Land, Infrastructure and Transport (19CTAP-C153014-01-000000).
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Recommended by Associate Editor Dongho Oh
Inki Park received a B.S. degree from Korea Aviation University in 1997 and an M.S. degree from Hanyang University in 2002. He is currently a researcher at the Agency for Defense Development, and a Ph.D. candidate at the Graduate School of Hanyang University. His research interest is the environmental vibration test method for a large EUT.
Junhong Park received B.S. and M.S. degrees from the Korea Advanced Institute of Science and Technology (KAIST) in 1991 and 1993, respectively. He received a Ph.D. degree from Purdue University in 2002. He is currently a Professor of Mechanical Engineering at Hanyang University. His research interests are signal processing, wave analysis, and noise control for improving the acoustic comfort of automobiles, trains, and residential buildings.
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Park, I., Park, J. Effective vibration test planning method for equipment with high slenderness ratio. J Mech Sci Technol 33, 5779–5786 (2019). https://doi.org/10.1007/s12206-019-1124-1
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DOI: https://doi.org/10.1007/s12206-019-1124-1