Simulation of dynamic characteristics of an operational hard disk drive with small form factor subject to external shock
WEI Hao-dong1, AO Hong-rui1,JIANG Hong-yuan1,PI Ya-dong2
1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001,China；2. Pipeline Research Institute, China National Petroleum Corporation, Langfang 200215, China
Abstract：in order to study the dynamic characteristics of hard disk drive subject to external shock, a dynamic model was established to describe the system of head/disk interface with slider suspension and the lift-tab/ramp interface. The dynamic performance of the system subject to external shock with half-sinusoidal shape for different durations and amplitudes were simulated. The dynamic response of the head slider under the shock and factors affecting the air bearing force were discussed. The simulation results indicate that during the shock, the squeezing effect of the thin film at head/disk interface influences the air bearing force, and the variation of the shock duration and amplitude determines the stability of the slider. The simulation results provide beneficial theoretical reference and analytical method for the design of the hard disk drive with good anti-shock performance.
魏浩东;敖宏瑞;姜洪源;皮亚东. 微型硬盘驱动器工作状态下的冲击特性仿真[J]. , 2011, 30(12): 88-92.
WEI Hao-dong;AO Hong-rui;JIANG Hong-yuan;PI Ya-dong. Simulation of dynamic characteristics of an operational hard disk drive with small form factor subject to external shock . , 2011, 30(12): 88-92.
2011, Vol. 30 
