In contrast shape memory alloy linear actuation can serve to make such installations function as proportional valves because unlike solenoids controls can drive the actuator to any position to control flow bundled wire sma linear actuators can also work as positioners to compete against piezo technologies in some cases. The aim of this research is to develop the methodology and the necessary tools to design and produce linear shape memory alloy actuators in this book the test apparatus designed to characterize the shape memory wires is described then the characterization tests modeling and control studies performed on a wire are explained. A review of shape memory alloy actuators in robotics design f abrication and analysis of a the developments of piezoelectric materials and shape memory alloys in robotic actuator systems. A shape memory alloy is an alloy that can be deformed when cold but returns to its pre deformed remembered shape when heated it may also be called memory metal memory alloy smart metal smart alloy or muscle wire citation neededparts made of shape memory alloys can be lightweight solid state alternatives to conventional actuators such as hydraulic pneumatic and motor based systems. The present finite element approach provides a powerful tool in design and optimization of shape memory alloy wave spring actuator especially to improve the geometric precision and to enhance the
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