Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/15493
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dc.titleDynamics and reliability of access system of high density magnetic recording
dc.contributor.authorHE ZHIMIN
dc.date.accessioned2010-04-08T10:54:07Z
dc.date.available2010-04-08T10:54:07Z
dc.date.issued2006-12-08
dc.identifier.citationHE ZHIMIN (2006-12-08). Dynamics and reliability of access system of high density magnetic recording. ScholarBank@NUS Repository.
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/15493
dc.description.abstractTo meet the continuous increase in demand for improved performances in the servo mechanical system of magnetic recording access system, several novel structures for the actuators/micro-actuators are proposed and their dynamic performances are characterized through simulation, optimization, prototyping and experimental investigations. These structures include: 1) a force coupled actuator to suppress the lateral translational vibration motion mode; 2) a flexural pivot for use in disk drive actuator to achieve a friction free and potentially cost-low design; 3) an actuator assembly with small skew actuation; and 4) a split electrodes piezoelectric suspension for dual-stage head positioning. This research also addresses the reliability evaluation and lifetime estimation of the piezoelectric actuators by proposing a probabilistic approach, i.e., P-E-N curve and the electric load-strength interference model. The reliability model is further extended to a two-dimensional case to take into account both electric driving voltage and temperature effects.
dc.language.isoen
dc.subjectmagnetic recording, dynamics, access system, piezoelectric actuators, probability, reliability
dc.typeThesis
dc.contributor.departmentMECHANICAL ENGINEERING
dc.contributor.supervisorLOH HAN TONG
dc.description.degreePh.D
dc.description.degreeconferredDOCTOR OF PHILOSOPHY
dc.identifier.isiutNOT_IN_WOS
Appears in Collections:Ph.D Theses (Open)

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