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CONTENTS

Acknowledgement i

Abstract ii

Nomenclature iii

List of figures iv

 

Chapter 1 ntroduction 1

  1.1 Objective 1

1.2 Background 1  1.3 Need of Magnetic Bearings 2

  1.4 Principle of Working 3

  1.4.1 Magnetic eluctance force 4  1.4.2 !orent" #orce 4

  1.4.3 $ignificance of !orent" #orce %1.% &pplication of Magnetic Bearing '

Chapter ! Literature "eview #

  2.1 (ntroduction )

  2.2 Previous *ork on Magnetic Bearings +

  2.3 ,istorical -evelopent of Magnetic Bearing 11

  2.4 /0pes of Magnetic Bearing 13  2.4.1 Passive Magnetic Bearing 1)

  2.4.2 &ctive Magnetic Bearing 13

2.% ,albac &rra0 2

2.%.1 Magneti"ation 21

2.%.2 ,albac 0linder 22

Chapter $ Component %esign !$

  3.1 Proble definition 23

  3.2 Magnetic Bearing $pecification 23

  3.3 -esign Principle 24  3.4 !a0out of onfiguration 2%

  3.% -esign of (ndividual oponents 2'

  3.%.1 ,ub 2'

  3.%.2 $tator 2  3.%.3 $aft 2+

  3.%.3.1 ritical $peed calculation 3

3.%.4 Base Plate 33

Chapter & 'abrication of ndividual Components $&

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  4.1 ,ub 34  4.2 $tator 3%

  4.3 $aft 3'

4.4 Base Plate 3'

Chapter ( E)perimental Evaluation of Lift 'orce $#

  %.1 /est #acilit0 3)

  %.2 /est ig oponent $pecification 3

  %.3 Materials 5plo0ed 3  %.4 !ift #orce 3+

  %.% Procedure for 5valuating !ift #orce 3+

  %.' /able of esults 41

  %.) Observations ade 43

*raphs &&

"esults and %iscussion &+ 

Conclusion &,

Scope for 'uture -ork (.

"eference (1

Appendi) (!