Optimization design and numerical analysis on the local structure of magnetic heads
NIU Rong-Jun1, LIU Hong-Bin1, HUANG Ping2
1. School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, China;
2. Research Institute of Mechanical Design and Theory, South China University of Technology, Guangzhou 510640, China
Abstract In hard disk drive systems, the thickness of air films between the rear of magnetic heads and the disk is the thinnest. So the air film pressure acted on local structures is very large, whose magnitude and distribution have an important effect on the flying stability of magnetic heads. The load-carrying performance of air films is greatly improved by optimizing the local structure of the rear of magnetic heads. Finally, a negative pressure magnetic head was designed by the proposed method. The numerical and experimental results show that the flying height of the proposed magnetic head is improved significantly.
NIU Rong-Jun, LIU Hong-Bin, HUANG Ping. Optimization design and numerical analysis on the local structure of magnetic heads. Chinese Journal of Engineering Design, 2010, 17(2): 114-118.
