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dc.contributor.authorTarantini, C.
dc.contributor.authorAgrawal, B.N.
dc.contributor.authorCristi, R.
dc.date.accessioned2013-07-18T19:18:19Z
dc.date.available2013-07-18T19:18:19Z
dc.date.issued2001
dc.identifier.citationAIAA Guidance, Navigation and Control Conference and Exhibit, 6-9 August, 2001, Montreal, Canada.
dc.identifier.urihttp://hdl.handle.net/10945/34485
dc.descriptionThe article of record as published may be found at http://dx.doi.org/10.2514/6.2001-4094en_US
dc.description.abstractFor several future imaging spacecraft, vibration isolation and suppression of its optical payloads have become a challenging problem. These spacecraft have increased performance requirements for the payload, resulting in increased fine steering and vibration isolation requirements. The vibration sources on the spacecraft, however, are increased due to the new large flexible structures and addition of rotating devices. One promising way to address both issues is through the Stewart platform. By using a hexapod with six actuated struts, it is possible to achieve both fine pointing and vibration control. Traditional vibration control algorithms rely on the knowledge of the plant and are usually computationally intensive. This paper applies a computationally efficient vibration control to the Stewart hexapod problem. This algorithm does not rely on the knowledge of the plant other than to find the adaptation rate coefficient and performs well on highly non-linear plants. A convergence analysis is presented. Results are shown for a voice-coil actuated hexapod.en_US
dc.rightsThis publication is a work of the U.S. Government as defined
in Title 17, United States Code, Section 101. As such, it is in the
public domain, and under the provisions of Title 17, United States
Code, Section 105, is not copyrighted in the U.S.en_US
dc.titleAn Efficient Algorithm for Vibration Suppression to Meet Pointing Requirements of Optical Payloadsen_US
dc.contributor.departmentDepartment of Mechanical and Aerospace Engineering


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