TOWARDS THE USE OF COMMERCIAL OFFTHE （对商业的使用完成）.pdf

TOWARDS THE USE OF COMMERCIAL OFF-THE-SHELF MOTORS IN SPACE S.D.Lewis, E W Roberts and M J Anderson ESTL, AEA Technology, Birchwood Park, Warrington, Cheshire WA3 6AT, England Tel.: +44 1925 252631, Fax.: + 44 1925 252415 E-mail: simon.lewis@aeat.co.uk E-mail: emyr.roberts@aeat.co.uk E-mail: mike.anderson@aeat.co.uk ABSTRACT modification and performance evaluation of There is growing interest in use of Commercial-Off- adapted Shinsei piezomotors for use on the The-Shelf (COTS) motors (and other components) MIDAS instrument on Rosetta. in space. These offer low-cost and occasionally unique performance benefits compared to bespoke space motors. Recent examples of their use include 2. FAULHABER MICROMOTOR Beagle II, Rosetta and numerous micro-satellite applications. However, application engineers who The Faulhaber 1016M003G micromotor was chosen by propose the use of COTS devices face a challenging the Max-Planck Institute for Extraterrestrial Physics series of materials and tribology-related issues, (MPE) for use on the ROSETTA Lander Anchoring together with performance uncertainties. The way System {Ref.1}. The motor is of the DC brushed type, these challenges are met will ultimately determine fitted with precious metal wire brushes running against whet