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1 | (12) |
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1 | (4) |
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1.2 MR Fluid Operation Modes |
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5 | (2) |
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7 | (3) |
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10 | (3) |
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13 | (12) |
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13 | (1) |
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2.2 Mechanisms of the MR Effect |
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13 | (3) |
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16 | (5) |
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17 | (1) |
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17 | (2) |
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19 | (2) |
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2.4 Rheology of MR Fluids |
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21 | (1) |
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22 | (1) |
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23 | (2) |
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3 Configurations of MR Dampers |
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25 | (26) |
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25 | (1) |
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26 | (6) |
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26 | (2) |
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3.2.2 Double-tube Dampers |
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28 | (3) |
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3.2.3 Sensory Damper Structures |
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31 | (1) |
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32 | (17) |
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3.3.1 Single-coil Control Valve |
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33 | (2) |
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3.3.2 Multiple Coils and Multi-stage Cores |
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35 | (1) |
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3.3.3 Secondary Flow Paths |
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36 | (2) |
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3.3.4 Multiple Parallel Flow Paths |
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38 | (1) |
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39 | (1) |
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39 | (2) |
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41 | (2) |
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3.3.8 Valves with Large Fluid Activation Area Ratio |
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43 | (2) |
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3.3.9 Asymmetric MR Valve |
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45 | (2) |
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3.3.10 Velocity- and Field-Sensing Valves |
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47 | (2) |
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49 | (2) |
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4 Modelling of Control Valves |
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51 | (42) |
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51 | (2) |
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4.2 Application of Nondimensional Groups |
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53 | (21) |
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4.2.1 Bingham Plastic Model |
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57 | (5) |
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4.2.2 Bi-plastic Bingham Model |
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62 | (8) |
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4.2.3 Herschel--Bulkley Model |
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70 | (4) |
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4.3 Computing Schemes for Control Valves |
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74 | (11) |
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4.3.1 Single Gap Control Valve |
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74 | (4) |
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4.3.2 Control Valve with Leakage Flow Paths |
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78 | (4) |
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4.3.3 Multiple Parallel Flow Paths |
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82 | (3) |
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4.4 Mathematical Model for an Electro-Magnetic Circuit of Control Valves |
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85 | (7) |
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86 | (2) |
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4.4.2 Magnetostatic Lumped Parameter Model |
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88 | (2) |
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90 | (2) |
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92 | (1) |
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93 | (24) |
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93 | (9) |
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95 | (4) |
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99 | (3) |
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5.2 Damper Behaviour Simulations |
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102 | (13) |
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102 | (1) |
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5.2.2 Geometry, Material Properties |
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102 | (1) |
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103 | (6) |
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109 | (1) |
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5.2.5 Geometry, Material Properties |
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109 | (3) |
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112 | (3) |
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115 | (2) |
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6 CFD Study of the Flow of MR Fluids |
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117 | (14) |
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117 | (1) |
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118 | (1) |
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119 | (11) |
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6.3.1 Test Geometry and Material Properties |
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119 | (3) |
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122 | (8) |
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130 | (1) |
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7 Power Drivers for MR Dampers |
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131 | (14) |
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131 | (1) |
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7.2 Damper Electrical Circuit Response Subjected to Controlled Voltage Inputs |
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132 | (6) |
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7.3 Experimental Testing and Analysis |
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138 | (6) |
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7.3.1 Measurement and Control System |
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138 | (1) |
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7.3.2 Results and Analysis |
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139 | (1) |
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140 | (1) |
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141 | (3) |
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144 | (1) |
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8 Experimental Verification of an MR Monotube Damper Model |
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145 | (28) |
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146 | (12) |
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8.1.1 Damper Geometry, Test Inputs |
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146 | (3) |
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8.1.2 Damper Response to Sinusoidal Displacement Inputs |
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149 | (5) |
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8.1.3 Damper Response to Step Current Inputs |
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154 | (4) |
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8.2 Monotube Damper Model Verification |
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158 | (12) |
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8.2.1 Response to Sinusoidal Displacement Inputs |
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158 | (9) |
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167 | (3) |
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170 | (3) |
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9 Energy Harvesting MR Dampers |
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173 | (30) |
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173 | (4) |
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177 | (8) |
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185 | (3) |
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9.4 Conditioning Electronics |
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188 | (5) |
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193 | (7) |
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200 | (3) |
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203 | (4) |
Appendix A Sliding Friction Model |
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207 | (4) |
Glossary |
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211 | (2) |
References |
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213 | |