Experimental study on the symmetric modes of vibration of a four bolt clamped square plate |
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Authors: | Henri Fenech K. Tran |
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Affiliation: | Department of Chemical-Nuclear Engineering, University of California at Santa Barbara, Santa Barbara, California 93106 USA |
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Abstract: | The response of structural components excited by turbulent flow noise depends on the natural resonance frequencies and displacement modes of those components. An experimental program is described which determined those resonance frequencies and modes for a flat plate clamped in the middle of its four sides and also for the case when one of the four bolts had failed. Thirty-three resonances in the range 30·5 to 736 Hz have been identified for the four-bolt normal operation and forty-two in the range 12·5 to 496·1 Hz for the three-bolt accidental situation. Of particular interest to the turbulent flow noise response, the modes symmetrical to the and diagonal axes have been identified and classified into a two-dimensional matrix form for the and modes combination ( and being the pure modes along the axis). |
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