NASA Technical Reports Server NTRS 20150003442: Thermal Powered Reciprocating-Force MotorReportar como inadecuado



 NASA Technical Reports Server NTRS 20150003442: Thermal Powered Reciprocating-Force Motor


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A thermal-powered reciprocating-force motor includes a shutter switchable between a first position that passes solar energy and a second position that blocks solar energy. A shape memory alloy SMA actuator is coupled to the shutter to control switching thereof between the shutters first and second position. The actuator is positioned with respect to the shutter such that 1 solar energy impinges on the SMA when the shutter is in its first position so that the SMA experiences contraction in length until the shutter is switched to its second position, and 2 solar energy is impeded from impingement on the SMA when the shutter is in its second position so that the SMA experiences extension in length. Elastic members coupled to the actuator apply a force to the SMA that aids in its extension in length until the shutter is switched to its first position.



Autor: NASA Technical Reports Server (NTRS)

Fuente: https://archive.org/







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