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Abstract

Vibration tests on an AMECO (Aircraft Maintenance Engineering Company) maintenance hangar were performed as multi-support excitations in order to verify the effectiveness of the multi-support time history method. The excitation sources represented the three cases of aeroplane taking-off, aeroplane landing and the running in the hangar of the aeroplane engine. Acceleration sensors were installed on the column bases of the hangar structure in order to collect the ground motion records for various excitation cases. The structural dynamic responses were obtained when subjected to the collected ground motions via the multi-support time history method. The calculation results were generally in agreement with those of the test in both the time domain (acceleration peaks) and the frequency domain, which verify the effectiveness of the multi-support time history method. The vibration test can also provide valuable reference data for long-span space structures under multi-support excitations.

Keywords

vibration test multi-support excitation multi-support time history method ground motion

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Vibration Test and Analysis of An Aircraft Maintenance Hangar under Multi-Support Excitations

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