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首页> 外文会议>STLE/ASME international joint tribology conference 2008 : Tribomaterials ; Nanotribology ; Biotribology ... >COUPLED THERMO-MECHANICAL MODELING OF HEAD-DISC INTERFACE IN HEAT ASSISTED MAGNETIC RECORDING
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COUPLED THERMO-MECHANICAL MODELING OF HEAD-DISC INTERFACE IN HEAT ASSISTED MAGNETIC RECORDING

机译：热辅助磁记录中磁头-磁盘界面的热力学耦合建模

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摘要

In Heat Assisted Magnetic Recording (HAMR), various thermal loads (laser, electrical current) subject the Head-Disc Interface (HDI) to intensive thermal strain / stress fields. The thermal strains, in terms of slider protrusion and media protrusion, significantly reduce the head-disc clearance and may lead to head-disc contact. Air bearings, by design, can passively adjust the fly height through so-called "self-compensation" to the protrusions. In this paper, an electro-thermo-mechanical model coupled with air bearing model has been developed to analyze the head flying characteristics under these thermal loads. The thermal protrusions induced by laser and current Joule heating, as well as their interactions, have been studied and verified with experimental results.
机译：在热辅助磁记录（HAMR）中，各种热负载（激光，电流）使磁头-磁盘界面（HDI）受到强烈的热应变/应力场。就滑块突出和介质突出而言，热应变会显着减小磁头磁盘间隙，并可能导致磁头磁盘接触。通过设计，空气轴承可以通过对突起的所谓“自补偿”来被动地调节浮动高度。本文开发了一种电热机械模型和空气轴承模型，以分析在这些热负荷下的磁头飞行特性。已经研究并验证了由激光和电流焦耳加热引起的热突起以及它们之间的相互作用。

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