Vibration Reduction of Marine Cable Systems Using Dynamic Absorbers

摘要

An engineering approach to the design of an in-line dynamic absorber is presentedusing 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.