The reduction of greenhouse gas emissions is very important challenge on offshore engineering. The offshore structure is expected to have important contribution on development of wind energy production system. The dynamic response evaluation is required to figure out the effects of uncertainty including the dynamic forces as well as the structural properties. In the present study, the dynamic response analysis of the offshore wind energy platform is carried out with wave force and seismic force with uncertainty. It is shown that the reliability index leads to important roles on the dynamic response evaluation of the offshore wind energy platform subjected to the wave force and seismic force with uncertainty.
The great attention is placed on the development of energy without the greenhouse gas emission in these days. The reduction of greenhouse gas emission is great interesting challenges to the development of industry. It is appear that the wind energy production is one of the effective methods on the development of the clean energy. The offshore structure has great possibilities because it is essential to carry out development of the offshore wind energy production (Sanjeev(2009)). From engineering point of views, the characteristics of wind on sea space are studying with the observation data (Shimada(2009)).The steady wind force, which can be provided to generate the wind energy production, would be available in the coast area within water depth about 50m (Hendersons(2002)). If the offshore structure is located in the seismic activity area, it is essential for the reliable design of the structure to carry out the dynamic response estimation on the wave force and seismic force (Kawano(2009)). If the offshore platform is subjected to seismic forces, it causes to very severe responses such as the bending stress may exceed the allowable stress.
