阻尼材料對硬碟落下衝擊效應之影響

Damping Material affect on the Dropping Shock of Hard Disk

王嘉成(Chia-Chen Wang)

指導教授 ： 韓麗龍

國立臺北科技大學/機電學院/製造科技研究所/碩士(2011年)

https://doi.org/10.6841/NTUT.2011.00105

摘要

本研究是利用重力式衝擊實驗機(gravity-shock-test instrument)及模擬硬碟(dummy hard disk, DHDD)，探討筆記型電腦在受到撞擊時，對於硬碟衝擊加速度之影響。實驗的阻尼材料有矽膠(silicone)與P800兩種，蕭氏硬度A (Shore hardness A, HsA)分別為 HsA60, 70, 80，組裝預壓量設定為10%及20%，及外觀肋的設計型式分為「有加強肋」及「無加強肋」兩種。經由重力式衝擊試驗機進行衝擊實驗測試。
實驗結果發現，阻尼材料硬度HsA70、在組裝預壓量為10%、外觀肋之設計為「有加強肋」的實驗條件下，阻尼材料P800對於衝擊加速度的吸收值比矽膠高約200 G，意即P800對於衝擊減震比矽膠有較好的效果。

關鍵字

重力式衝擊實驗機 ； 模擬硬碟 ； 衝擊加速度 ； 阻尼材料 ； 組裝預壓量

並列摘要

This study analyzes the impact of damping material by gravity-shock-test instrument which was applied in shock fixture and dummy hard disk (DHDD). Both silicone and P800 of damping material were tested under 10% and 20% pre- compressive assembled setting, hardness shore A 60, 70, and 80 (HsA60, 70, and 80), and with and without exterior rib for strengthened structures. Finally, the shock experiment was tested by using gravity-shock-test instrument.
Experiment results show the absorb value of shock acceleration for damping material P800 is 200G higher than that for silicone by the settings are that the hardness Shore A (HsA) of damping materials is HsA70, the pre-compressive value of the assembly materials is 10%, and with the strengthened rib. This means that the damping material of P800 shows better performance for reducing the shock than that of silicone.

並列關鍵字

gravity-shock- test instrument ； shock fixture ； dummy hard disk ； shock acceleration ； damping material ； assembly pre-compressive value

參考文獻

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