Optimal design method is used to optimize the design of the head slider.The goal is to reduce flying height of head

and increase hard drive storage density and the stability of flight.Model with a stable altitude of flight and a minimum fluctuation of optimization target is built.The model meets the size constraints and the performance constraints of stable flight of head.Using simulated annealing algorithm and Matlab software program to solve optimal model.Take three-body head as an example

results show that the flight altitude of the optimized head is significantly reduced

the flight characteristics is improved

recording density is increased.It also shows that the simulated annealing algorithm is feasible and efficient.