Comparison of theoretical and experimental response of a single-mode elastic system in hydrodynamic impact /

Hydrodynamic impact tests wre made on an elastic model approximating a two-mass - spring system which had a ratio of sprung mass to hull mass of 0.6 and a natural frequency of 3.0 cycles per second. Tests were made at two combinations of trim and flight-path angles for a range of flight-path velocity. Comparison of the experimenatal results with results obtained from the theory of NACA TN 1398 showed good agreement.NACA TN No. 2343."April 1951."Includes bibliographical references.Hydrodynamic impact tests wre made on an elastic model approximating a two-mass - spring system which had a ratio of sprung mass to hull mass of 0.6 and a natural frequency of 3.0 cycles per second. Tests were made at two combinations of trim and flight-path angles for a range of flight-path velocity. Comparison of the experimenatal results with results obtained from the theory of NACA TN 1398 showed good agreement.Mode of access: Internet