Key parts including piezoelectric transducer and amplitude transformer with a cylindrical hole in the center, and flexural vibration disk are analyzed and calculated.

提出了珩磨杆、珩磨头体均不振动的设计思想，分析计算了中心有圆柱孔的压电换能器和变幅杆，以及弯曲振动圆盘等关键部分。

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The effects of magnitude of blade disorder and disk rotating speed on the vibration mode localization are analyzed.

分析了叶片的失谐量和轮盘的转速对结构振动模态局部化的影响。

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Described in this paper is a calculation formula for a single disk rotor system vibration response.

本文介绍了单圆盘转子体系振动响应的计算公式。

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The drive contains no moving parts, decreasing the risk of data loss due to shock and vibration, and its mean time between failure (MTBF)4 greatly exceeds that of hard disk drives, giving users peace of mind that it will retain their files for the long term.

ENGADGET: SanDisk launches Extreme SSDs: $190 for 120GB, $400 for 240GB