计算机硬盘驱动器的振动安全性分析

硬盘驱动器是计算机重要的外存储设备。它对随机振动环境较为敏感 ,是控制计算机系统工作安全性和进行信息处理的薄弱环节之一。笔者对计算机硬盘驱动器在随机振动环境下的工作安全性进行了分析 ,提出了导致硬盘工作失效的基本形式 ,针对读写过程中头盘振动响应位置偏移与读写模式间的关系给出了硬盘工作失效的判定方法。有关结果对计算机系统的振动安全分析和评估是有益的探讨。

Analysis on VibrationSafety of the Computer

Hard disk drive is an important computer's outer storage device, which is rather sensitive to random vibration circumstance, and is one of the weakest elements in controlling the safety of computer system and information processing. After analyzing the safety of the hard disk drive operating under random vibration circumstance, the general forms leading to operation failure of the hard disk drive are presented. According to the relationship between the head/disk relative displacement response on vibration excitation and read/write mode, the failure criterion of hard disk drive is provided. The result obtained provides a useful exploration on the safety analysis and estimation of the computer system under the condition of vibration.