Method and apparatus for singularity avoidance for control moment gyroscope (CMG) systems without using null motion
| dc.contributor.author | Agrawal, Brij N. | |
| dc.contributor.author | Kim, Jae Jun | |
| dc.contributor.author | Sands, Timothy Andrew | |
| dc.contributor.corporate | Research and Sponsored Programs Office (RSPO) | |
| dc.contributor.corporate | Naval Postgraduate School (U.S.) | |
| dc.date.accessioned | 2017-02-16T23:23:45Z | |
| dc.date.available | 2017-02-16T23:23:45Z | |
| dc.date.issued | 2017-02-14 | |
| dc.description.abstract | A method is described for avoiding gyroscopic singularities during attitude correction to a system, such as a spacecraft having a CMG array. The method receives a corrective torque vector µ and gimbal angle values δ for each of at least three gimbal within the CMG array. The method a a Jacobian matrix A as a function of gimbal angle value δ. A. If the determinant is not equal to zero, it is not singular, and the method calculate a gimbal rate δ using a using a pseudo-inverse steering law equation. If the determinant is equal to zero, it is singular, and the method calculate a gimbal rate δ using a singularity avoidance steering law equation. The gimbal rate δ is output and can be applied to a CMG array resulting in applied torque to a spacecraft and attitude correction. | en_US |
| dc.identifier | US 9,567,112 B1 | |
| dc.identifier.uri | https://hdl.handle.net/10945/51921 | |
| dc.publisher | The Government of the United States of America, as represented by the Secretary of the Navy, Washington, DC (US) | en_US |
| dc.relation.ispartofseries | Patents | |
| dc.rights | This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. | en_US |
| dc.title | Method and apparatus for singularity avoidance for control moment gyroscope (CMG) systems without using null motion | en_US |
| dc.type | Patent | en_US |
| dspace.entity.type | Publication | |
| relation.isOrgUnitOfPublication | 6b655e58-5689-4419-8db8-562f3b19b2d0 | |
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