Shock motion of YFNB targets
Technical Report
·
OSTI ID:6416458
The shock-spectrum data obtained on the three YFNB surface targets of Operation Wigwam are examined and compared with two hypotheses as to the relation between parameters of the underwater pressure wave and the shock motion in a ship. It was found that the shock severity varies approximately in proportion to the theoretical upward velocity (the 'spray-dome velocity') of the free water surface. Certain deviations from full agreement are noted. The alternative hypothesis that shock motion is proportional to the 'shock factor,' which is correct for ordinary high explosives, is found to be in poor agreement. The order of magnitude of shock-spectrum velocities was found to agree fairly well with computed dome velocities. An analysis of the interaction of a ship's bottom plate with a step shock wave shows that the dome velocity hypothesis is a rough approximation of the correct theory.
- Research Organization:
- Naval Research Lab., Washington, DC (USA)
- OSTI ID:
- 6416458
- Report Number(s):
- AD-338005
- Country of Publication:
- United States
- Language:
- English
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