The Influence of Towing Method on Planing Boat Accelerations in Waves
Abstract
TRACT Vertical acceleration measurements are often used to evaluate the “rigid body” response of a planing hull to hydrodynamic forces in waves. Unfortunately accelerometers respond to both the rigid body hull motions of interest and to unwanted vibrations, which if not addressed, produce artificially higher peak acceleration values (Riley, et.al, 2010). In full scale hulls, vibrations from the propulsors are telegraphed through the hull structure to the accelerometer. In towing tank models vibrations from the carriage are transmitted by the tow post through the hull and to the accelerometer. Historically, different methods have been used to eliminate the unwanted acceleration components including engineering judgement, electronic low-pass filtering of analog signals and postprocessing of digital measurement records using computational filtering techniques.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 04, 2017
- Source ID
- 10.5957/attc-2017-0026
Entities
People
- Bill Beaver
- Carolyn Judge
- John Zseleczk
Organizations
- United States Naval Academy