Pages 107-113
This paper deals with the dynamic response and strength of long submerged structures with tension legs in regular waves. First, a simplified estimation method is presented for dynamic responses of such a structure in regular waves using a simple beam model on an elastic foundation. Then, effects of the incident wave frequency, wave direction and the tension leg on the characteristics of the frequency response amplitude for the deflection and bending stress are numerically identified. Next, in order to demonstrate the validity of the above method, experimental studies are carried out for a basic model which is compoded of a vinyl chloride pipe as the main structure with polystyrol form blocks as buoyancy members and with tension legs(silicon rubber strings). Finally, it is found that the simplified estimation results are in good correspondence with the experimental results for the dynamic response of long submerged structures with tension legs.
