목차

요약문…………………………………………………..……….…….I
ABSTRACT……………………………………..……..……..…….III
CONTENTS………………………………….…….……..……..…..V
LIST OF TABLES………………………………..……...………VIII
LIST OF FIGURES………………………………...…………….XIV
1 Introduction………………………………………………………..1
1.1 Motivations and objectives……………….……………………….1
1.2 MR elastomer………………………………………….……….....2
1.3 Research scope and contribution…………………………….……4
1.4 Thesis organization………………………………………….….....5
2 Friction and Wear Characteristics of MR elastomers Based on Silicone/Polyurethane Hybrid…………………………..…….…….7
2.1 Experimental specimens…………………………………..………7
2.2 Experimental setup and conditions………………………..………9
2.3 Results and discussion…………………………………….……..11
3 Effect of temperature and relative humidity on friction and wear properties of silicon-based MR elastomer ……..…………..……..30
3.1 Experimental specimens………………………….……………...30
3.2 Experimental setup and conditions………………….…….……..31
3.3 Results and discussion…………………………………….……..33
3.3.1 Physical property……………………………………….……...33
3.3.2 Friction coefficient and wear depth at different temperatures ………………………………………………….……..34
3.3.3 Friction coefficient and wear depth at different relative humidities ……………………………………………………...……37
3.3.4 Wear surface image……………………………………………39
4 Friction and wear characteristics of MR elastomer under vibration conditions…………………………………………….…..53
4.1 Experimental specimens……………………………………..….53
4.2 Results and discussion……………………………………….…55
4.2.1 Friction property…………………………………………….…55
4.2.2 Wear property……………………………………………….…59
5 Effect of stick-slip on MR elastomer with a magnetic field………………………………………………………………..…77
5.1 Preparation of the MR elastomer sample …………………….….77
5.2 Experimental setup and conditions…………….………….……..78
5.3 Results and discussion………………………….………………..80
6 Application study of MR elastomer to rolling friction control………………………………………………..…………….100
6.1 Theoretical analysis……………………………….……………100
6.2 Experiment details………………………………….…………..102
6.3 Results and discussion……………………………….…………104
7 Rolling friction coefficient-slip rate control using MR elastomers …………………………………………………………….………..117
7.1 Experiment details…………………………………….………..117
7.2 Results and discussion………………………………….………119
8 A magnetic fatigue study of MR elastomer ……………..…….129
8.1 Experimental specimen………………………………………....129
8.2 Experimental setup……………………………………………..130
8.3 Results and discussions………………………………………...131
9 Conclusion and future works ………………………………….140
References……………………………………………………………….145