Golf club face thickness optimization method
A method of optimizing golf club head and golf ball design is disclosed herein. The method includes inputting a RBF for stress, a RBF for CT and a RBF for ball speed into an Adaptive Simulated Annealing algorithm to generate an optimized structure for the club head for ball speed.
1 . A computer-implemented method to optimize the structure of a golf club head for ball speed, the method comprising the following steps performed in sequence:
generating, at a processor, a plurality of face thickness points for the golf club head and a plurality of body thickness points for the golf club head using a sampling technique to fill a design space using a finite element analysis (“FEA”) program to generate a plurality of responses comprising a plurality of performance characteristics for the golf club head;
generating, at the processor, a function for durability of the golf club head from a finite element analysis (“FEA”) program of the golf club head using the plurality of face thickness points for the golf club head and the plurality of body thickness points for the golf club head;
generating, at the processor, a function for ball speed of the golf club head from the FEA program using the plurality of face thickness points for the golf club head and the plurality of body thickness points for the golf club head;
generating, at the processor, a surrogate model;
utilizing, at the processor, the surrogate model in an optimization algorithm to provide an approximation of a lower sample space;
repeating, at the processor, the above mentioned steps in sequence, until the surrogate model converges with the FEA for a predetermined objective to form an of a golf club head for ball speed, based on a plurality of constraints consisting of a 200 Ksi stress constraint based on a titanium 6-4 sheet material, a 248 us characteristic time (CT) constraint, and a 196 gram head mass; and
manufacturing the optimized structure of the golf club head using forging and machining.
2 . The method according to claim 1 wherein using the surrogate model in an optimization algorithm to provide an approximation of a lower sample space comprises inputting a constrained function for durability and the function for ball speed into a meta-modeled based optimization algorithm to generate an optimized structure for the club head for ball speed.