Adaptive feedforward cancellation with gain and damping control system considering helium leakage in HDDs
Adaptive feedforward cancellation with gain and damping control system considering helium leakage in HDDs
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DOI：
10.1007/s42452-019-1229-2
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发表时间：
2019-09
影响因子：
2.6
通讯作者：
S. Yabui;T. Inoue
中科院分区：
文献类型：
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作者：
S. Yabui;T. Inoue
本研究发展一种具有增益与阻尼控制之自适应前馈抵消系统，应用于硬盘驱动器。该系统的开发是为了补偿由于氦气泄漏引起的流体诱导振动。全世界的数据服务器都使用充氦硬盘来支持信息社会。充氦HDD中的一个问题是由于氦泄漏导致控制系统的定位精度恶化。所提出的磁头定位控制系统可以通过实时更新控制系统的特性来补偿流体引起的振动。基于MATLAB/Simulink的实时仿真结果表明，该方法可以有效地补偿由于氦气泄漏引起的磁头定位控制系统中的流体振动。结果表明，控制系统的特性被实时更新，以补偿流体引起的振动，从而与由于氦气泄漏引起的特性变化一致，并且流体引起的振动可以得到充分补偿。
This study developed an adaptive feedforward cancellation system with gain and damping control for hard disk drives (HDDs). The system was developed to compensate for fluid-induced vibration due to helium leakage. Helium-filled HDDs are used in data servers around the world to support the information society. One of the concerns in helium-filled HDDs is the deterioration of positioning accuracy of the control system due to helium leakage. The proposed head positioning control system can compensate for the fluid-induced vibration by updating the characteristics of the control system in real-time. Real-time simulations based on MATLAB/Simulink were performed to demonstrate that fluid-induced vibrations due by helium leakage in the head positioning control system of HDDs can be compensated. The results indicated that the characteristics of the control system were updated in real-time to compensate for fluid-induced vibrations in conformity with the variation in characteristics due to helium leakage and that the fluid-induced vibrations can be adequately compensated.