Accession Number : AD0650326

Title :   DETERMINATION OF THE HYDRODYNAMIC SHAPE FOR A FREE-FALL OCEAN CURRENT PROBE.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : Kuperstein,David Wayne

Report Date : AUG 1966

Pagination or Media Count : 123

Abstract : The thesis proposes a free-fall, hydrodynamically tuned, lifting sensor containing two accelerometers to record a velocity profile in the deep ocean. A free fall device frees the mother ship for other oceanographic work while the sensor is collecting information. Hydrodynamic tuning eliminates the need for a vehicle guidance system with adjustable wings. The major work of this thesis centered about obtaining the hydrodynamic stability derivatives through the use of a planar-motion-mechanism. The derivatives are used to determine the external wing configuration and position for a suitable instrument carrying vehicle. The linear response of the proposed sensor vehicle to a disturbance velocity was obtained by means of an analog computer solution of the linearized equations of motion. (Author)

Descriptors :   (*PROBES, OCEAN CURRENTS), HYDRODYNAMIC CONFIGURATIONS, OCEANOGRAPHIC EQUIPMENT, DETECTORS, DRAG, EQUATIONS OF MOTION

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE