Accession Number:

ADA278859

Title:

Data reduction, Analysis and Results of LACV-30-07 Air Cushion Vehicle Tests, Fort Story, VA, August-September 1993

Descriptive Note:

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Shin, Young S.
• Hoy, Eric

Report Date:

1994-02-01

Pagination or Media Count:

524.0

Abstract:

The LACV-30-07 Air Cushion Vehicle was instrumented and tested at Fort Story, VA during the months of August-September 1993 by Ed. Thomas, NSWC- Cardrock Division, Annapolis Detachment, Annapolis, MD. The tests include 27 cuts with vehicle speed ranging from 0 to 42 knots and approximate wave height of 0 to 2.5 feet. Two triaxial accelerometers, and a pitch and roll transducer were installed to measure axial, transverse and vertical accelerations and pitch and roll in degree of the vehicle. The test results clearly show that the vibration g-amplitude is extremely low fraction of 1-g level for air cushion vehicle and air cushion vehicle itself is acting as a super-damper to reduce the wave-induced vibration response amplitude. The vibration amplitude in terms of g-level may not be the controlling factor, but the combined vehicle dominant frequencies, vibration g-level, and duration may be the definite factors that the superconductor magnet must persist. Air cushion vehicle, Vibration criteria, Wave height, Vibration g-level pitch and roll.

Descriptors:

• *SEA TESTING
• *AIR CUSHION VEHICLES
• TEST AND EVALUATION
• VELOCITY
• FREQUENCY
• VIBRATION
• ROLL
• ACCELEROMETERS
• ACCELERATION
• SUPERCONDUCTORS
• RESPONSE
• DATA REDUCTION
• DATA ACQUISITION
• TRANSDUCERS
• MAGNETS
• AMPLITUDE
• TIME DOMAIN
• FREQUENCY DOMAIN
• HEIGHT
• BROADBAND TRANSDUCERS
• AUDIO TAPES
• TAPE RECORDERS
• NARROWBAND
• TRANSVERSE
• DIGITAL RECORDING SYSTEMS

Subject Categories:

• Surface Effect Vehicles and Amphibious Vehicles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE