Optimal design of the fillet weld fastening the wind turbine column

This paper deals with the optimal design of the fillet weld of wind turbine column subjected to bending moment. Under the premise of determined the force acting on the column, in order to further optimize the fillet weld, the minimum volume of corner seam was determined in the case of non-linear design constraints. The constraints relate to the maximal stresses and fatigue of welding seam. A numerical solution to this problem is given by genetic optimization algorithm. The optimisation calculation result indicated that the active condition (constraint) was the stress from the static load. Useful and meaningful information is provided for the engineering field.