# Accommodation of kinematic disturbances during a minimum-time maneuver of a flexible spacecraft

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[唯一标识符]:CDSITC.AEROSPACE.A88-50440

[文献来源]:美国航空航天数据库(aerospace);国际航宇文摘(IAA)

[资源原始索取号]:A1988-50440; Reference AN: A88-50440

[标题]:Accommodation of kinematic disturbances during a minimum-time maneuver of a flexible spacecraft

[作者]:SHARONY YAAKOV; MEIROVITCH LEONARD

[来源]:AIAA and AAS Astrodynamics Conference Minneapolis MN Aug. 15 17 1988. 17 p.

[文摘]:This paper is concerned with control of the perturbations experienced by a flexible spacecraft during a minimum-time maneuver. The spacecraft is modeled as a flexible appendage attached to a rigid hub. The perturbations consist of rigid-body deviations and elastic vibration. The vibration is described by a linear, time-varying set of ordinary differential equations subjected to piecewise-constant disturbances caused by inertial forces resulting from the maneuver. The control is carried out during the maneuver period, which is relatively short, and it uses an observer that estimates the controlled state and part of the disturbance vector. The controller is divided into an optimal finite-time linear quadratic regulator for the reduced-order model and a disturbance-accommodation control that minimizes a weighted norm spanning the full modeled state. The controller is designed to mitigate the effects of control and observation spillover, as well as of modeling errors. The developments are illustrated by means of a numerical example. (Author)

[关键词]:FLEXIBLE SPACECRAFT; LINEAR QUADRATIC REGULATOR; OPTIMAL CONTROL; SPACECRAFT MANEUVERS; STRUCTURAL VIBRATION; VIBRATION DAMPING; CONTROL SYSTEMS DESIGN; EIGENVALUES ; EQUATIONS OF MOTION; LEAST SQUARES METHOD; MATRICES MATHEMATICS

[出版年份]:1988

[专业领域]:SPACECRAFT DESIGN, TESTING AND PERFORMANCE

[馆藏索取号]:A88-50440

[文献来源]:美国航空航天数据库(aerospace);国际航宇文摘(IAA)

[资源原始索取号]:A1988-50440; Reference AN: A88-50440

[标题]:Accommodation of kinematic disturbances during a minimum-time maneuver of a flexible spacecraft

[作者]:SHARONY YAAKOV; MEIROVITCH LEONARD

[来源]:AIAA and AAS Astrodynamics Conference Minneapolis MN Aug. 15 17 1988. 17 p.

[文摘]:This paper is concerned with control of the perturbations experienced by a flexible spacecraft during a minimum-time maneuver. The spacecraft is modeled as a flexible appendage attached to a rigid hub. The perturbations consist of rigid-body deviations and elastic vibration. The vibration is described by a linear, time-varying set of ordinary differential equations subjected to piecewise-constant disturbances caused by inertial forces resulting from the maneuver. The control is carried out during the maneuver period, which is relatively short, and it uses an observer that estimates the controlled state and part of the disturbance vector. The controller is divided into an optimal finite-time linear quadratic regulator for the reduced-order model and a disturbance-accommodation control that minimizes a weighted norm spanning the full modeled state. The controller is designed to mitigate the effects of control and observation spillover, as well as of modeling errors. The developments are illustrated by means of a numerical example. (Author)

[关键词]:FLEXIBLE SPACECRAFT; LINEAR QUADRATIC REGULATOR; OPTIMAL CONTROL; SPACECRAFT MANEUVERS; STRUCTURAL VIBRATION; VIBRATION DAMPING; CONTROL SYSTEMS DESIGN; EIGENVALUES ; EQUATIONS OF MOTION; LEAST SQUARES METHOD; MATRICES MATHEMATICS

[出版年份]:1988

[专业领域]:SPACECRAFT DESIGN, TESTING AND PERFORMANCE

[馆藏索取号]:A88-50440

**下载地址:**点击此处下载