MULTI-OBJECTIVE OPTIMIZATION AND SENSITIVITY ANALYSIS FOR SEISMIC RESPONSE OF COMPOSITE STRUCTURAL WIND TURBINE SUPPORT STRUCTURES

Abstract

Composite structural wind turbine support structures are one useful means of increasing the size of wind turbine installations. However, there are still no examples in Japan, and it is unclear to what extent each design variable affects the seismic response. Therefore, this study attempts to quantitatively evaluate the influence of each design variable on the seismic response using the response spectrum method through multi-objective optimization and through sensitivity analysis. Furthermore, a method is proposed to apply the obtained results to actual design.