## Damping of rectangular plate vibrationsWright Air Development Division, Air Research and Development Command, U. S. Air Force, 1960 - Science - 20 pages |

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acceleration changes adjusts the spacing Air Development Center analysis applied frequency applied load approximated Arlington assumed balance between leakage ball boundary conditions changes from positive closed cylinder cylinder and piston cylinder is small cylinder wall damper damping device deflection amplitude DETAIL OF PISTON edges Equation A.15 Equation A.7 equation of motion finite cosine transform free piston function give an impulse impact type integration inverse transform leakage and friction linear damping coefficient lowest natural frequency mass density Materials Laboratory MEANS EFFECTIVE DAMPING o a o odd integer piston and cylinder piston wall plate changes PLATE VIBRATIONS positive to negative ratio rectangular plate resonant mode satisfies the boundary SECTION simply supported SMALL e MEANS solution solve Equation square plate type damping mechanism University of Minnesota upper wall velocity viscous WADC TECHNICAL REPORT WADC TR Wright Air Development zero