本文關(guān)鍵詞：基于具有抗震功能的硬盤磁頭氣墊面的仿真分析　出處：《上海交通大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 雷諾方程 磁頭氣墊面 抗震性能 剛度系數(shù) 阻尼率

【摘要】：為了提高磁頭的抗震性能，保證硬盤內(nèi)部數(shù)據(jù)的安全。本文使用磁頭氣墊面設(shè)計(jì)軟件兼氣墊面動(dòng)態(tài)特性仿真軟件，該軟件是美國加州大學(xué)伯克利分校CML（Computer Mechanics Laboratory）實(shí)驗(yàn)室開發(fā)的CMLAir，從增強(qiáng)磁頭的剛度系數(shù)和提高其阻尼率入手來研究硬盤的抗震性能，降低硬盤受到外部撞擊時(shí)磁頭損毀的幾率，延長硬盤的使用壽命。 首先，本文選取一個(gè)已知抗震能力較差、剛度系數(shù)和阻尼率均較低的初始磁頭氣墊面作為研究對象，在該氣墊面基礎(chǔ)上，使用氣墊面設(shè)計(jì)軟件分析研究如何通過改變磁頭氣墊面形狀而改變氣流流向，優(yōu)化磁頭表面的壓強(qiáng)分布,增強(qiáng)其機(jī)械強(qiáng)度和提高其阻尼率；其次，使用碰撞仿真器預(yù)測優(yōu)化后的磁頭氣墊面的最大抗震能力，，將其與初始磁頭氣墊面的抗震能力作比較；然后，通過測試優(yōu)化后的磁頭氣墊面實(shí)驗(yàn)工程樣品的抗震能力驗(yàn)證硬盤的抗震性能是否得到有效的提高；最后，歸納總結(jié)通過改變氣墊面形狀提高磁頭抗震性能的氣墊面設(shè)計(jì)方法。
[Abstract]:In order to improve the seismic performance of the magnetic head and ensure the safety of the internal data of the hard disk, the design software of the magnetic head air cushion surface and the simulation software of the dynamic characteristics of the air cushion surface are used in this paper. The software was developed by the CML(Computer Mechanics LaboratoryLab at the University of California, Berkeley. The aseismic performance of the hard disk is studied by increasing the stiffness coefficient and damping rate of the hard disk, reducing the probability of the head damage when the hard disk is hit by the outside, and prolonging the service life of the hard disk. First of all, this paper selects an initial magnetic head air cushion with poor seismic capacity, low stiffness coefficient and low damping rate as the research object, on the basis of the air cushion surface. The air cushion surface design software is used to analyze and study how to change the flow direction of the magnetic head air cushion surface by changing the shape of the magnetic head air cushion surface, optimize the pressure distribution of the magnetic head surface, enhance its mechanical strength and increase its damping rate. Secondly, the impact simulator is used to predict the maximum seismic capacity of the optimized magnetic head air cushion surface, and the seismic capacity of the initial magnetic head air cushion surface is compared with that of the original magnetic head air cushion surface. Then, the seismic performance of the hard disk is proved to be improved effectively by testing the seismic capability of the optimized magnetic head air cushion surface. Finally, the design method of air cushion surface is summarized to improve the seismic performance of magnetic head by changing the shape of air cushion surface.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP333.35

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