Drop Tests to Support Water-Impact and Planing Boat Dynamics Theory

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Abstract:

The occupants of high-speed planing boats are exposed to repeated shock impacts that result from hull slamming during operation in heavy seas. An important component of the research necessary for developing shock reduction technology is two dimensional water-impact theory. Drop tests provide data necessary for evaluating. shock reduction concepts, and for developing and validating two-dimensional theory. This report summarizes the method and results of an initial series of drop tests to baseline the water-impact characteristics of a rigid, high aspect-ratio, aluminum, prismatic hull model with 20-deg deadrise. Parameters varied during the baseline tests including drop height and weight. Comparison between the experimental data and CSS predictions, and recommendations for follow-on drop tests are given.

Author(s):
Peterson, Ronald ; Wyman, David ; Frank, Carolyn
Author Organization(s):
NAVAL SURFACE WARFARE CENTER PANAMA CITY FL
Pagination:
0024

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
CSS/TR-97/25
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_5.3_Planning; JCA_5_Command and Control; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_1.2.6_Concepts; JCA_6_Net Centric; JCA_1.2.3_Educating; JCA_3.2_Engagement; JCA_3_Force Application; JCA_8_Building Partnerships
Modernization Areas:
Directed Energy
Communities of Interest:
Biomedical
Descriptor(s):
*IMPACT SHOCK, *DROP TESTS, *BOATS, *FLUID DYNAMICS, EXPERIMENTAL DATA, TWO DIMENSIONAL, HULLS(MARINE), THEORY, TEST METHODS, REDUCTION, BASE LINES, ALUMINUM, OCEANS, HEIGHT, ASPECT RATIO, PLANING SURFACES
Field(s)/Group(s):
Marine Engineering, Fluid Mechanics
Keyword(s):
*PLANING BOATS, *WATER IMPACT
Report Date:
1997 Sep 01
Creation Date:
1998 Sep 09