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Short‐span seeking control of hard disk drive with vibration suppression PTC
Author(s) -
Fukushima Keisuke,
Fujimoto Hiroshi,
Nakagawa Shinsuke
Publication year - 2007
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20546
Subject(s) - span (engineering) , vibration , control theory (sociology) , controller (irrigation) , mode (computer interface) , resonance (particle physics) , trajectory , realization (probability) , vibration control , tracking (education) , engineering , control (management) , computer science , structural engineering , acoustics , physics , mathematics , artificial intelligence , psychology , agronomy , pedagogy , statistics , particle physics , astronomy , biology , operating system
Abstract In a short‐span seeking‐mode of hard disk drives, the resonance modes are getting crucial obstruction to meet the demand on high‐speed data access. In this paper, a novel vibration suppression perfect tracking control (PTC) method is proposed based on controllable canonical realization. In the proposed method, it is assumed that the plant is modeled as the rigid and primary resonance mode. By using this model, the feed forward controller is designed with PTC by multirate sampling control in order to suppress the primary vibration. Additionally, the higher‐order resonance vibration is attenuated by using the trajectory MHVT. The proposed method achieved 16% faster seeking than MPVT, a conventional method. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 162(1): 66–72, 2008; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20546