The Research Of The Optimal Design Of Slider

Hard disk reading and writing operations is based on principles of electromagnetic respon-se. There is an air bearing between the head and disk, which support the head suspended above the stable. In recent years, the rapid development of the computer to require hard drive storage density is increasing. According to Wallence formula, lowering head flying high has a great influence on the increased storage density. Of course, it will increase the friction and wear between the head and the disk, so designing rational slider and improving flight stability is exigent.This is the first to introduce robust design into the design of magnetic head slider on the based of the optimal design of slider. The design is divided into two parts:the robust design of the flight parameters and the robust design of slider shape. In this article, takes the three-body slider as example and take the quality function as the objective function to build a tolerance model and restricting it and solving it. The objective function is simulated using the exponential function model. Then programming by the MATLAB software and getting the function curve comparison chart. In the model the solution process, using FORTRAN programming language and random probability algorithm to solve the model in the designing. The results show that the flight characteristic has a greater degree of improvement after the robust design of the slider, and also has important practical significance to the further development of magnetic storage technology.