Anti-Resonant Frequency and the Measurement of Mechanical Admittance Data.
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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20110MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LABAnti-Resonant Frequency and the Measurement of Mechanical Admittance Data.Technical note,Bagley,Ronald L. TN-1973-53F19628-73-C-0002AF-649LESDTR-73-339BeamsStructural, MatricesMathematics, Mechanical impedance, Resonant frequency, Eigenvectors, Vibration, Damping, AdmittanceMatrix methods, EigenvaluesThe undamped and damped anti-resonant frequencies of mutual mechanical admittances are defined. Their relationship to the magnitude of error introduced into measured mechanical admittancies by the shaker is determined. The shaker error is minimized at anti-resonant frequencies of the mutual admittance of the degree of freedom where the shaker is attached. Experimental verification is given. Author