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Impact micro-positioning actuator

Authors :
Cuerden, Brian
Angel, J. Roger P
Burge, James H
DeRigne, Scott T
Publication Year :
2006
Publisher :
United States: NASA Center for Aerospace Information (CASI), 2006.

Abstract

An impact micro-positioning actuator. In one aspect of the invention, a threaded shaft is threadably received in a nut and the nut is impacted by an impacting device, causing the nut first to rotate relative to the shaft by slipping as a result of shaft inertia and subsequently to stick to the shaft as a result of the frictional force therebetween. The nut is returned to its initial position by a return force provided by a return mechanism after impact. The micro-positioning actuator is further improved by controlling at least one and preferably all of the following: the friction, the impact provided by the impacting device, the return force provided by the return mechanism, and the inertia of the shaft. In another aspect of the invention, a threaded shaft is threadably received in a nut and the shaft is impacted by an impacting device, causing the shaft to rotate relative to the nut.

Subjects

Subjects :
Mechanical Engineering

Details

Language :
English
Database :
NASA Technical Reports
Notes :
NAS8-97309
Publication Type :
Report
Accession number :
edsnas.20080009427
Document Type :
Report