F-1307 磁気ディスク装置用ヘッドサスペンションおよびアームの風乱振動低減(S47-2 機構2 流れ場設計)(S47 情報機器コンピュータメカニクス)

概要

論文の詳細を見る
Reduction of windage, or vibration of the slider in the off track direction induced by airflow, is very important issue to increase the track density of hard disk drives (HDDs). New head suspension assembly which is designed to increase the stiffness and natural frequencies to improve the windage and to be used for ramp load/unload 10-krpm 3.5type HDD has been developed. The windage of the new suspension was measured by using laser Doppler vibrometer in the spin stand. The windage peaks were mainly located from 9 to 12 kHz, since those of the former head suspension assembly were from 6 to 9 kHz. Total windage from 1 kHz to 15kHz of the new one was reduced to 68% of the old one. The windage of the suspensions with carriage arm was also measured. Total widage of the new one was reduced to 73% of the old one. By increasing the natural frequency and decoupling from the carriage arm mode, the windage of the new suspension was improved.
社団法人日本機械学会の論文
2001-08-22