Use of the Finite Element Damped Forced Response Strain Energy Distribution for Vibration Reduction.
BOEING CO MORTON PA VERTOL DIV
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Expressions for the vibratory strain energy distribution using the damped forced response DFR are developed. he modes above and below the excitation frequency are analyzed separately. The results are then combined to establish a criteria for structural optimization. A helicopter forward pylon structural model is used to demonstrate the advantages of the DFR strain energy concept for structural vibrational optimization. Author