TY - GEN
T1 - Design of ramp profile to improve the unloading performance in small form factor HDD
AU - Lee, Yonghyun
AU - Park, No Cheol
AU - Park, Kyoung Su
AU - Yang, Hyunseok
AU - Park, Young Pil
AU - Kim, Ki Hoon
AU - Kim, Seokhwan
AU - Lee, Yong Eun
PY - 2008
Y1 - 2008
N2 - Load/unload(L/UL) mechanism has been widely used in small form factor hard disk drive(SFF HDD) because it has many advantages necessary for portability. The ramp profile is one of the most dominant parameters which affect L/UL performance. In this paper, we focus on the design procedure of optimal ramp profile to improve the unloading performance. Firstly, the effects of the vertical unloading velocity are investigated by experiment. Secondly, designable ramp slopes are gained from the governing equations for the suspension and the slider. Finally, optimal ramp profile is designed and made through the ramp slopes, height and length. Therefore, this paper analyzes the dynamic characteristics for various unloading velocities, establishes the thesis for the optimal ramp profile design and verifies the unloading performance of the designed ramp profile with the experiment.
AB - Load/unload(L/UL) mechanism has been widely used in small form factor hard disk drive(SFF HDD) because it has many advantages necessary for portability. The ramp profile is one of the most dominant parameters which affect L/UL performance. In this paper, we focus on the design procedure of optimal ramp profile to improve the unloading performance. Firstly, the effects of the vertical unloading velocity are investigated by experiment. Secondly, designable ramp slopes are gained from the governing equations for the suspension and the slider. Finally, optimal ramp profile is designed and made through the ramp slopes, height and length. Therefore, this paper analyzes the dynamic characteristics for various unloading velocities, establishes the thesis for the optimal ramp profile design and verifies the unloading performance of the designed ramp profile with the experiment.
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M3 - Conference contribution
AN - SCOPUS:84883434766
SN - 9781627481519
T3 - 15th International Congress on Sound and Vibration 2008, ICSV 2008
SP - 2509
EP - 2516
BT - 15th International Congress on Sound and Vibration 2008, ICSV 2008
T2 - 15th International Congress on Sound and Vibration 2008, ICSV 2008
Y2 - 6 July 2008 through 10 July 2008
ER -