@Article{AAMM-3-716, author = {Liu , Yan and Du , Hejun}, title = {Investigation of HDD Ramp Unloading Processes with an Efficient Scheme}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2011}, volume = {3}, number = {6}, pages = {716--728}, abstract = {

Ramp load/unload (L/UL) mechanisms are widely used to rest sliders in hard disk drives (HDDs). Loading/unloading a slider swiftly and smoothly is crucial in a HDD design. A novel, efficient simulation scheme is proposed to investigate the behaviors of a head disk interface (HDI) in ramp unloading processes. A dual scale model is enabled by decoupling the nano-meter scale change of an air bearing and the micro- or milli-meter scale deformation of a suspension. A modified Reynolds equation governing the air bearing was solved numerically. The slider design was characterized with performance functions. Three stages in an unloading process were analyzed with a lumped parameter suspension model. Key parameters for the model were estimated with a comprehensive finite element suspension model. Finally, simulation results are presented for a commercial HDI design.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.10-m1001}, url = {http://global-sci.org/intro/article_detail/aamm/192.html} }