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The paper presents the design of a driving kinematical joint driven by a shape memory alloy actuator, which has the capacity to ensure a control of displacements and of forces in both directions. There are presented some aspects regarding the main designing elements of the driving kinematical joint and of the actuator. The constructive solution, an original conception, presents a series of advantages. Thus, the use of electric, hydraulic or pneumatic engines or machines was eliminated, decreasing the weight and size of the driving kinematical joint, decreasing the energetic consumption, having a simple and viable construction. In order to verify the presented device functionality the numerical simulation method of specialized SolidWorks software was used.

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