Contributors |
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xi | |
About the Author |
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xv | |
Preface |
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xvii | |
Acknowledgment |
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xix | |
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1 | (12) |
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8 | (5) |
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2 Constrained linear quadratic optimization for jerk-decoupling cartridge design |
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13 | (24) |
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14 | (1) |
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2.2 Modeling of the linear feed drive with JDC |
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14 | (3) |
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2.3 Parameter optimization via linear quadratic formulation |
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17 | (4) |
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2.3.1 Linear quadratic formulation |
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17 | (3) |
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2.3.2 Initialization of the optimization problem |
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20 | (1) |
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2.4 Gradient-based constrained optimization algorithm |
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21 | (7) |
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28 | (5) |
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33 | (4) |
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35 | (2) |
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3 A limited angle torque actuator with cylindrical Halbach and its large angle tracking control |
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37 | (20) |
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38 | (1) |
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3.2 LAT actuator with cylindrical Halbach |
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38 | (2) |
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3.2.1 Actuator design and experiment setup |
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38 | (1) |
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3.2.2 Advantage of the LAT motor with cylindrical Halbach design |
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39 | (1) |
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3.3 Modeling and identification with dual-relay feedback |
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40 | (4) |
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3.3.1 Modeling of the LAT actuator |
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40 | (2) |
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3.3.2 Parameter identification |
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42 | (2) |
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3.4 Robust output feedback tracking controller design |
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44 | (10) |
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3.4.1 Robust state-feedback controller |
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44 | (2) |
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3.4.2 Output feedback controller with a nonlinear HGO |
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46 | (8) |
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3.5 Experiment validation |
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54 | (2) |
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56 | (1) |
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56 | (1) |
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4 Precision motion tracking of piezoelectric actuator using sampled-data iterative learning control |
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57 | (24) |
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58 | (1) |
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4.2 Experimental setup and dynamic modeling |
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59 | (3) |
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59 | (1) |
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4.2.2 Resolution of the ADC and DAC channels |
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60 | (2) |
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62 | (1) |
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4.3 Performance of feedforward and feedback control |
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62 | (5) |
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4.3.1 Feedforward control |
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62 | (2) |
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64 | (3) |
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4.4 Design of iterative learning controller |
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67 | (6) |
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4.4.1 Structure of sampled-data ILC |
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67 | (2) |
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4.4.2 Selection of filters Q(z) and L(z) |
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69 | (2) |
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71 | (2) |
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4.5 Experimental validation of ILC |
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73 | (4) |
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4.5.1 ILC started from feedforward control |
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75 | (1) |
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4.5.2 ILC started from feedback control |
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76 | (1) |
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77 | (4) |
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79 | (2) |
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5 High-precision tracking of piezoelectric actuator using iterative learning control and direct inverse compensation of hysteresis |
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81 | (18) |
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82 | (1) |
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5.2 Dynamic hysteresis modeling of PEA |
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83 | (2) |
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5.2.1 Bouc~Wen model and its inversion |
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84 | (1) |
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85 | (1) |
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85 | (4) |
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86 | (1) |
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5.3.2 Parameter identification |
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86 | (3) |
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5.4 Performance of the inverse compensation |
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89 | (2) |
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89 | (1) |
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5.4.2 PI control with direct inverse compensate of hysteresis |
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90 | (1) |
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5.5 Design of sampled-data ILC |
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91 | (3) |
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5.5.1 Structure of sampled-data ILC |
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92 | (1) |
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5.5.2 Considerations for selection of Q(z) and L(z) |
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93 | (1) |
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5.6 Experimental validation of ILC |
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94 | (1) |
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95 | (4) |
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97 | (2) |
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6 Design, modeling, measurement and control of an precision APT system |
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99 | (26) |
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100 | (1) |
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100 | (11) |
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6.2.1 Dynamics modeling of the coarse tracking subsystem |
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100 | (6) |
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6.2.2 Dynamics modeling of the fine tracking subsystem |
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106 | (5) |
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111 | (1) |
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6.4 Controller design of the APT system |
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112 | (2) |
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6.4.1 Controller design of the coarse tracking subsystem |
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112 | (1) |
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6.4.2 Controller design of the fine tracking subsystem |
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113 | (1) |
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6.5 Simulation of the composite axis controller |
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114 | (5) |
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6.5.1 Simulation parameters |
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115 | (1) |
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116 | (3) |
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119 | (5) |
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6.6.1 Experimental set up |
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120 | (1) |
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6.6.2 Experimental results |
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121 | (3) |
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124 | (1) |
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7 Accurate modeling and suppression of microvibrations in precision spacecraft |
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125 | (20) |
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125 | (4) |
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7.2 Passive vibration isolation |
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129 | (2) |
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7.3 Active vibration isolation |
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131 | (2) |
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7.3.1 Adaptive LMS algorithm |
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131 | (1) |
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7.3.2 Active vibration isolation based on the adaptive LMS |
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132 | (1) |
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133 | (3) |
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7.5 Experimental verification |
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136 | (6) |
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7.5.1 Active isolator design |
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137 | (2) |
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139 | (3) |
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142 | (3) |
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143 | (2) |
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8 Modeling and robust control of spacecraft with flexible attachment |
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145 | (18) |
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145 | (8) |
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8.1.1 Dynamics equations of the spacecraft with flexible attachment |
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147 | (2) |
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8.1.2 Modal analysis for the flexible attachment |
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149 | (2) |
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8.1.3 Dynamics equations in mixed reference frames |
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151 | (2) |
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8.2 Robust controller design |
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153 | (2) |
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155 | (6) |
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161 | (2) |
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162 | (1) |
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9 Dynamics analysis and control of a spacecraft mechanism with joint clearance and thermal effect |
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163 | (54) |
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9.1 Dynamics modeling of satellite antenna system |
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164 | (2) |
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9.2 Dynamics control for a spacecraft mechanism with nonlinear factors |
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166 | (17) |
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9.2.1 Rigid-flexible coupling dynamics modeling for satellite antenna system |
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166 | (9) |
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9.2.2 Vibration suppression for the antenna |
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175 | (3) |
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178 | (5) |
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9.3 Nonlinear dynamics analysis with joint clearance |
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183 | (12) |
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9.3.1 Dynamics error modeling in a flexible joint |
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183 | (4) |
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9.3.2 Satellite antenna pointing tracking control |
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187 | (2) |
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189 | (6) |
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9.4 Nonlinear dynamics analysis with thermal effect |
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195 | (16) |
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9.4.1 Heat conduction equations for flexible reflector |
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195 | (5) |
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9.4.2 Coupling dynamics model considering thermal loaded |
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200 | (2) |
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9.4.3 Adaptive controller design with uncertain disturbance |
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202 | (3) |
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205 | (6) |
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211 | (6) |
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214 | (3) |
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10 Dynamics modeling of flexible multibody structure for a spacecraft mechanism with nonlinear factors |
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217 | (44) |
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10.1 Formulation for a laminated composite beam with a large scale motion |
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218 | (11) |
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10.1.1 Deformation description |
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218 | (5) |
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10.1.2 Displacement-stress equations of a laminated composite beam |
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223 | (2) |
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10.1.3 Rigid-flexible coupled dynamics modeling |
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225 | (4) |
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10.2 Formulation for a deployment and locking mechanism with flexible laminated composite appendages |
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229 | (14) |
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10.2.1 Rigid-flexible coupled dynamics modeling |
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229 | (10) |
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10.2.2 The effect of contact-impact in the locking hinge |
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239 | (4) |
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10.3 Numerical simulations |
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243 | (14) |
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10.3.1 Large range motion simulation of composite laminated beam |
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243 | (8) |
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10.3.2 Deployment and locking process with flexible laminated composite appendages |
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251 | (6) |
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257 | (4) |
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259 | (2) |
Index |
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261 | |