第五章 航天器的被动姿态控制系统
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第五章 航天器的被动姿态控制系统. 5.1 自旋卫星的稳定性和章动性 5.2 自旋卫星的章动阻尼 5.3 双自旋卫星稳定系统 5.4 重力梯度稳定系统 5.5 重力梯度稳定卫星的天平动阻尼. 5.1 自旋卫星的稳定性和章动性. 自旋稳定的原理：利用航天器绕自旋轴旋转所获得的陀螺定轴性，使航天器的自旋轴方向在惯性空间定向。 主要优点：简单。 抗干扰。 因为当自旋航天器受到恒定干扰 力矩作用时，其自旋轴是以速度漂移， 而不是以加速度漂移。自旋稳定能使航天器发动机的推力偏心影响减至最小。. - PowerPoint PPT PresentationTRANSCRIPT
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5.1 5.2 5.3 5.4 5.5
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5.1
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5.1.1 ( )(3.33)
(3.33)
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5.1.1 ( )(3.33)
(5.1)
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, , , (5.1) , , (1) ; (2)
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(5.1) (5.2a) (5.2b)
(5.2c)
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(5.2b)(5.2c) = (5.3a) (5.3b) (5.3c)
(5.4)
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(53) (54) (a) (b) (a)(b)
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(a)(b)5.2
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19581(ExplorerI)(5.3)1 rad-51
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1 ,
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5.1.2 (51) = 5.5a (5.5b) (5.5c) (5.6)
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(5.5) , , , ,(5.5) (5.7) (5.8)
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(5.5b) (5.5c)
(5.9) (5.10)
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Oyz Ox Ox 5.4
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H (322)(332)H
(5.11)H OxOxH(5.10)(5.11)
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5.12 ( ) (512) (1)H Ox 3 (2) Ox( )(5.12) H(5.12)
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H 55OxH 56
- OxH (511) (513) (514) O
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(513) (5.16)(514) (517)(56) (517), (518) (56)(516)(518)
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1 52(a) (1) (2) (3) H Ox
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2 52(b) (1) (2) (3) H Ox
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( )(5.13)(5.15) Ox Oy Oz
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()
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5.2
;
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5.2.1
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()
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1 (5.7)
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(519)(513)(514)(515)
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(519)
(520) (521)
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( = 0) ( = 90) 57Ox
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(522) (523) (522) (524) (525)T
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(521) (526) (526) (525) (525) (527)
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(526) (528) (529)(529)
(530)r
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(530) H
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2 U
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582aRR>>a
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(1) (2) (3) (4) (5)
3
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5.2.2
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ATS4ATS5()
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5905
v
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5.3
()() 5.10
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5.3.1 5.11 (1) (2) (3) ,
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(3.29) (5.31a) (5.31b) (5.31c) (5.32)(532)(531)
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(5.33a) (5.33b) (5.33c) (5.34)(5.33a) (5.33) (535)
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(536) , (537) (538)H
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(539) (540)
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532 5.11 (541)
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(542) (539) (543) (542)(543)
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(544)
(544)
(543) (545) (546)
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(545) (547)
(540)
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(547)
(548)
(548) (548)( )
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() (549)
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(1) 1() (2) 1() (3) (4)
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5.3.3
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5.12()
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5.4
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110
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5.4.1
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(1) (2) (3)()
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1 5.13
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(5.50) (5.51) (5.52)
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2 5.14(),
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(5.53) (5.54)
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3 5.15(a)(b)
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(555)
515(a)
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5.4.2 Ro O O (556)
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(5.57a) (5.57b) (5.57c) dm (5.58) (5.16) (5.59)
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(5.60)
, G
(5.61)
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(561) (562)
(563)
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(5.56)(5.58) (5.64a) (5.64b) (5.64c)
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5.57 (5.65a) (5.65b) (5.65c)
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(5.65) (5.66a) (5.66b) (5.66c)
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, (5.67a) (5.67b) (5.67c) () (1) (2) (3)
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5.4.3 (338) (338)
(567)(338)
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(568a) (568b) (568c)(569a) (569b) (569c)
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(570a) (570b) (570c) (571)
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(569)()(570) (5.72)
(5.73)
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(1) (2) (3)
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5.5 (1) (2) (3)
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5.17
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5.18
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5.193
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5.6 ()
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5.20
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5.21
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5.22
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1105.23UOSAT
UO-14
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5.7
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5.7.1 1 M = PB(PB)
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2
3
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5.7.2 (1) (2) (3)