Accession Number : ADA314556

Title :   Vibration Reduction of Marine Cable Systems Using Dynamic Absorbers.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : Tatera, James E.

PDF Url : ADA314556

Report Date : JUN 1996

Pagination or Media Count : 53

Abstract : An engineering approach to the design of an in-line dynamic absorber is presented using transfer matrix techniques for an infinitely long cable system. The natural frequencies of the system are determined and the properties of the installed damper are optimized to maximize the amount of energy absorbed. Numerical simulations show that the optimally tuned and damped in-line dynamic absorber will dissipate 50% of incident transverse vibration energy. A design methodology for a nominal marine monitoring program is presented and specific engineering constraints provided to ensure that the modeled system meets design specifications

Descriptors :   *VIBRATION, *MARINE ENGINEERING, *UNDERWATER CABLES, COMPUTERIZED SIMULATION, FOURIER TRANSFORMATION, OPTIMIZATION, MONITORING, MATRICES(MATHEMATICS), DAMPING, THESES, VORTEX SHEDDING, RESONANT FREQUENCY, ABSORBERS(MATERIALS), TENSION, PARTIAL DIFFERENTIAL EQUATIONS, TRANSVERSE WAVES, SYSTEMS ANALYSIS, DESIGN CRITERIA, OCEAN ENVIRONMENTS, HYDRODYNAMICS, SEDIMENTS, ELECTRIC CABLES, MOORING BUOYS, ENERGY ABSORBERS.

Subject Categories : Marine Engineering
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE