Wave Effect on Underwater Bomb Trajectory with Application to Mine Clearance
Abstract
Question has been raised about the possible impact sea state which may
have on the performance of the Joint Direct Attack Munition (JDAM) Assault
Breaching System (JABS) in the very shallow water (VSW) regime (depth up to
40 ft). We investigated the wave effect on underwater bomb trajectory. We will
present: (1) development of a new version of the NPS 6 DOF model with the
capability to predict the bomb maneuvering in the water column due to sloping
surface, (2) analysis on the underwater bomb trajectory and orientation due to
wave propagation, (3) determination of the wave effect on the bomb trajectory,
and (4) calculation of the probability distribution function of the bomb position
due to various sea-state. For VSW regions, the bottom topography affects the
waves dramatically and causes a significant change in surface slope, which
changes the bomb impact angle, and then the bomb trajectory. Such effect is still
important when application of JABS is to shallow water (SW) and deep water
(DW).
Description
Ninth Monterey International Symposium on Technology and Mine Problems, Society for Counter-Ordnance Technology
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
Wave Effect on Underwater Bomb Trajectory and Tail Separation
Chu, Peter C. (2009);Investigation of ocean wave effect on the underwater bomb trajectory. -
Development of an artillery accuracy model
Fann, Chee Meng. (Monterey California. Naval Postgraduate School, 2006-12);This thesis explains the methodologies that predict the trajectory and accuracy of an unguided, indirect-fire launched projectile in predicted fire. The trajectory is the path that a projectile travels to the impact point, ... -
Tail separation and density effects on the underwater trajectory of the JDAM
Bushnell, Jillene Marie (Monterey, California. Naval Postgraduate School, 2009-12);The Navy is in need of an organic, inexpensive, swift method to neutralize or sweep waterborne mines. This thesis presents an alternative to current mine countermeasure technologies that fulfills this criteria-the use ...