Practical considerations of joint friction and backlash in large ground-based telescope secondary optic positioning systems

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 7018, Issue , 2008, Pages

  Cash, Michael ^a   Bruch, Daniel ^a   Jahn, Bernie ^a   Keas, Paul ^a  

^a CSA ENGINEERING   (United States)

Author keywords

Accuracy; Actuator; Backlash; Deflection; Dynamic; Friction; Hexapod; Position; Settling; Stiffness

Indexed keywords

INSTRUMENTS; MACHINE DESIGN; METHOD OF MOMENTS; OPTICAL INSTRUMENTS; OPTICAL SENSORS; OPTICAL TELESCOPES; PHOTOGRAPHY; SPACECRAFT OBSERVATORIES; TELESCOPES; THICKNESS MEASUREMENT; TRIBOLOGY;

ACCURACY; BACKLASH; DEFLECTION; HEXAPOD; POSITION; SETTLING;

FRICTION;

EID: 56249094872     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.790193     Document Type: Conference Paper

References (7)

1. Anderson, E., Cash, M., Janzen, P., Pettit, G., and Smith, C., "Precision, range, bandwidth and other tradeoffs in hexapods with application to large ground based telescopes," SPIE Astronomical Telescopes and Instrumentation (2006).
2. Schmidt-Kaler, Th., "The Hexapod telescope, a new way to very large telescopes," Progress in Telescope and Instrumentation Technologies, ed. M. -H. Ulrich, (Munich:ESO), 117 (1992).
3. Pernechele, C., Bortoletto, F. and Reif, K, "Hexapod control for an active secondary mirror: general concept and test results," Appl. Opt. 37, 6816-6821 (1998).
4. Carrington, C. K., Davis, B.G., "The application of linear actuators for telescope pointing control," proc. AAS/AIAA Astrodynamics Conference (1991).
5. Anderson, E., Cash, M. Hall, J., Pettit, G., "Hexapods for precision motion and vibration control," proc. ASPE Control of Precision Systems (2004).
6. Juvinall, R. and Marshek K. Fundamentals of Machine Component Design, John Wiley & Sons, 349 (1991).
7. Jahn, B., "Simulation, design, and testing of a high-performance multi-axis hexapod for vibration isolation," proc. ASME IDETC/CIE (2007).