Mechanics of Underwater Noise Training
Mechanics of Underwater Noise Training Course Description
Mechanics of Underwater Noise Training describes the essential mechanisms of underwater noise as it relates to ship/submarine silencing applications. The fundamental principles of noise sources, water-borne and structure-borne noise propagation, and noise control methodologies are explained. Illustrative examples will be presented. The course will be geared to those desiring a basic understanding of underwater noise and ship/submarine silencing with necessary mathematics presented as gently as possible.
With onsite Training, courses can be scheduled on a date that is convenient for you, and because they can be scheduled at your location, you don’t incur travel costs and students won’t be away from home. Onsite classes can also be tailored to meet your needs. You might shorten a 5-day class into a 3-day class, or combine portions of several related courses into a single course, or have the instructor vary the emphasis of topics depending on your staff’s and site’s requirements.
Fundamentals. Definitions, units, sources, spectral and temporal properties, wave equation, radiation and propagation, reflection, absorption and scattering, structure-borne noise, interaction of sound and structures.
Noise Sources in Marine Applications. Rotating and reciprocating machinery, pumps and fans, gears, piping systems.
Noise Models for Design and Prediction. Source-path-receiver models, source characterization, structural response and vibration transmission.
Noise Control. Principles of machinery quieting, vibration isolation, structural damping, structural transmission loss, acoustic absorption, acoustic mufflers.
Fluid Mechanics and Flow Induced Noise. Turbulent boundary layers, wakes, vortex shedding, cavity resonance, fluid-structure interactions, propeller noise mechanisms, cavitation noise.
Sonar Self Noise and Reduction. On board and towed arrays, noise models, noise control for habitability, sonar domes.
Ship/Submarine Scattering. Rigid body and elastic scattering mechanisms, target strength of structural components, false targets, methods for echo reduction, anechoic coatings.
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