Robust design of miniaturised spindle motors for hard disk drive

... ROBUST DESIGN OF MINIATURISED SPINDLE MOTORS FOR HARD DISK DRIVE GAO XIAN KE (M.Eng, B.Eng) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ELECTRICAL AND ... application of robust design in hard disk drive industry As the objective of the research is to formulate effective robust design approaches systematically for the...

Ngày tải lên: 17/09/2015, 17:20

... the electromagnetic forces are extremely stringent Electromagnetic forces such as the cogging torque and unbalanced magnetic pull (UMP) generated in the permanent magnet spindles are of great concerns ... Modeling and Analysis of PM Brushless DC Motors 2.1 Electromagnetic Field in PM Brushless DC Motors In order to study the electromagnetic forces and t...

Ngày tải lên: 15/09/2015, 22:03

... literally Finally, I wish to thank the following colleagues: Linlin Thi (for her patience and hardworking in developing hardware and firmware for the experiment setup together with me), Dr Chunling Du ... Pseudo-sine Current Profile for Smooth Seeking Hard disk drive is widely used in consumer electronics where acoustic noise is becoming a more important performance index Quiet s...

Ngày tải lên: 15/09/2015, 21:16

... Problem Instances For Hard- Disk Drive Build -Planning Problem 123 6.2 Computational Results For Hard- Disk Drive Build -Planning Problem 125 6.3 CPU time (s) For Hard- Disk Drive Build -Planning Problem ... v List of Figures 3.1 Shortest Path Network for Hard- Disk Drive Production Planning 46 3.2 Multicommodity Network for Hard- Disk Drive Production...

Ngày tải lên: 15/09/2015, 21:48

Ngày tải lên: 17/10/2013, 19:15

... reason why the control structure with the EG should be used for feedback systems with stable open loop plants Another control structure can be used for systems with open loop unstable plants [13] ... to design control systems with multiple saturations for stable open loop plants The idea is to design a linear control system ignoring the saturations...

Ngày tải lên: 18/02/2014, 10:20

... 1982) The elements of the vocabulary of a control language are names of PSs, and the well-formed strings of the language define just those sequences of PS applications which are allowed The user ... It follows that the generator must provide compilations of these defintions in the language of the kernel machine The implementation of the control generator...

Ngày tải lên: 08/03/2014, 18:20

... rules that are shared among lexical items, as well as by the declarative nature of the grammar formalism itself, 6The example is merely meant to be indicative of the syntax for and operation of lexical ... decidability of that f{,rmalism [Kaplan and Bresnan, 83] Off-line parsability req.ires that the context-free "skeleton" of the grammar allows no trivial cyclic derivations of...

Ngày tải lên: 24/03/2014, 01:21

... systemC TLM PIM SystemC TLM to PSM SystemC TLM transform TLM SystemC platform C level area/energy consumption estimates Performance/area Energy consumption Pareto front analysis SystemC TLM level SystemC ... platform generation SystemC TLM level with area and energy Platform configuration selected SystemC TLM Platform to VHDL platform PIM to PSM transformation HW/...

Ngày tải lên: 22/06/2014, 19:20

... D´ez, E Martos, F J Ca˜ ete, and J T Ene ı n trambasaguas, Analysis of timing recovery schemes for DMT systems over indoor power-line channels,” in Proceedings of the 49th Annual IEEE Global ... performance of a conventional DMT timing recovery scheme designed for LTI channels has been assessed when employed over indoor power lines The two main causes th...

Ngày tải lên: 22/06/2014, 20:20

... versions of the FWMSE, both using a model of the human Design of Farthest-Point Masks for Image Halftoning visual system (HVS) The first version measures the difference between the original image ... j) term is used to suppress checkerboard Design of Farthest-Point Masks for Image Halftoning 1889 0.9 0.8 0.7 cb(i, j) = Figure 1: Example of a pixel forming a local...

Ngày tải lên: 23/06/2014, 01:20

... American Concrete Institute 116R-85 Cement and Concrete Terminology 316R-82 504R-77 325.3R-7 Recommendations for Construction of Concrete Pavements and Concrete Bases Guide to Joint Sealants for Concrete ... Standard Method for Non-Repetitive Static Plate Load Tests of Soils and Flexible Pavement Components, for Use in Evaluation and Design of Airport an...

Ngày tải lên: 24/10/2014, 21:59

... N, kớch VCM2 012 Ti liu tham kho [1] Joost Duflou, Yasemin Tunckol, Alex Szekeres, Paul Vanherck, A force measuring based strategy for failure prevention in incremental forming, Journal of Materials ... Khớ - Trng i hc bỏch Khoa i hc Quc Gia Thnh ph H Chớ Minh, 2003 [4] R Aerens & P Eyckens & A Van Bael & J R Duflou, Force prediction for single point incremental forming de...

Ngày tải lên: 25/07/2015, 07:17

... Schematic layout for the multi- channel secondary electron off-axis analyser reported by Kienle and Plies [1.31] New possibilities of using multi- channel energy spectrometers for other applications inside ... Introduction At present, the detection systems of the Scanning Electron Microscope (SEM) or Focused Ion Beam (FIB) are not generally designed to capture the ener...

Ngày tải lên: 09/09/2015, 09:59

... MODIFYING DESIGN COUPLERS FOR OF FOUR- PORT ENHANCED REFLECTOMETER SIX -PORT PERFORMANCE YAO JIJUN (M.Eng., Huazhong University of Science & Technology) A THESIS SUBMITTED FOR THE DEGREE OF ... SIX -PORT REFLECTOMETER BASED ON FOUR- PORT COUPLERS 52 3.1 Overview of Six -Port Reflectometers based on Hybrid Couplers 53 3.2 Proposed Six -Port Refl...

Ngày tải lên: 10/09/2015, 15:48