Experimental demonstration of a classical approach to flexible structure control

Wie, Bong

doi:10.2514/3.11393

Cited by 16 publications

(5 citation statements)

References 11 publications

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“…[22][23]. The filter's effectiveness was also shown experimentally on NASA's Mini-Mast truss structure at the Langley Research Center 24 and on NASA's Advanced Control Evaluation for Structures (ACES) testbed at the Marshall Space Flight Center 25 . The Hubble Space Telescope solar array disturbance problem was also attenuated by the same filter, although the filter was not termed the "dipole" DRF 26 .…”

Section: Figure 1 Naval Postgraduate School's Three-axis Simulator (mentioning

confidence: 97%

“…We now consider the response of both the traditional DRF and new DDRF to the decaying periodic disturbance defined in Table 1. Although not explicitly presented, the traditional DRF has been experimentally demonstrated in past research to attenuate decaying periodic disturbances 24,25 . Figure 8 shows that the traditional DRF does attenuate some of the decaying periodic disturbance as shown in past studies, but the new DDRF's attenuation is superior.…”

Section: Effect Of Drf and Ddrf In Tas Non Linear Modelmentioning

confidence: 99%

“…The DRF experiments conducted on the NASA testbeds (Ref. [24][25] also appear to involve non-continuously excited (decaying) disturbances. The first experiment of the collocated design on the Mini-Mast Truss Structure involved an input impulse disturbance 24 .…”

Section: Figure 1 Naval Postgraduate School's Three-axis Simulator (mentioning

confidence: 99%

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Disturbance Filtering and Identification on the Naval Postgraduate School 3-Axis Spacecraft Simulator

Lau

Joshi

Agrawal

et al. 2005

AIAA Guidance, Navigation, and Control Conference and Exhibit

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This paper investigates spacecraft disturbance rejection filtering for both persistent and decaying disturbances. The current study both validates the previously developed "dipole" disturbance rejection filter on a realistic non-linear spacecraft model, and extends the results to a new class of decaying disturbances. Although not designed specifically for decaying disturbances, prior investigations have demonstrated that the traditional "dipole" disturbance rejection filter attenuates both persistent periodic disturbances and decaying disturbances. Here we introduce a new filter which we call the decaying disturbance rejection filter, which has greater attenuation than the traditional filter for decaying disturbances. The new filter is also based on the internal model principle like the traditional filter. Also, it is shown that both the traditional and the new filter are not robust to frequency uncertainty. As a result, new closed-loop system identification methods are introduced to experimentally identify the disturbance frequency to be used within the filter design for both filter types.

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Section: Figure 1 Naval Postgraduate School's Three-axis Simulator (mentioning

confidence: 97%

Section: Effect Of Drf and Ddrf In Tas Non Linear Modelmentioning

confidence: 99%

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Disturbance Filtering and Identification on the Naval Postgraduate School 3-Axis Spacecraft Simulator

Lau

Joshi

Agrawal

et al. 2005

AIAA Guidance, Navigation, and Control Conference and Exhibit

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show abstract

“…The conversion from quaternions to Euler angles for a 2-3-1 rotational sequence is shown in Eqs. (11)(12)(13) (Ref. 7).…”

Section: B Tas Three-axis Nonlinear Rigid-body Simulation Modelmentioning

confidence: 99%

“…1,9 The filter's effectiveness was also shown experimentally on NASA's minimast truss structure at the NASA Langley Research Center 10 Center. 11 The Hubble Space Telescope solar array disturbance problem was also attenuated by the same filter, although the filter was not termed the dipole DRF. 2 The dipole DRF is based on linear theory.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Periodic-Disturbance Identification and Rejection in Spacecraft

Lau¹,

Joshi²,

Agrawal³

et al. 2006

Journal of Guidance, Control, and Dynamics

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Spacecraft periodic-disturbance rejection using a realistic spacecraft hardware simulator and its associated models is investigated. The effectiveness of the dipole-type disturbance rejection filter on the current realistic nonlinear rigid-body spacecraft model is validated. However, it is shown that the rejection filter is not robust to disturbance frequency uncertainty. Therefore, system identification techniques are needed if the disturbance frequency is unknown or changing. Based on experience with the current test bed, two simple closed-loop system identification methods are introduced to experimentally identify the disturbance frequency using data from the control input torque signal. It is shown that an incorrect filter frequency results in beating of the control input torque. Examination of the beat envelope leads to tuning of the rejection filter.

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Combined control of fast attitude maneuver and stabilization for large complex spacecraft

Zhang

2013

Acta Mech Sin

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Experimental demonstration of a classical approach to flexible structure control

Cited by 16 publications

References 11 publications

Disturbance Filtering and Identification on the Naval Postgraduate School 3-Axis Spacecraft Simulator

Disturbance Filtering and Identification on the Naval Postgraduate School 3-Axis Spacecraft Simulator

Investigation of Periodic-Disturbance Identification and Rejection in Spacecraft

Combined control of fast attitude maneuver and stabilization for large complex spacecraft

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