Control of strain in a flexible beam using Ni-Ti-Cu shape memory alloy wire actuators

摘要: In this paper the development of an experimental test bench to analyze and control strain a flexible aluminum beam subjected external disturbances is described. proposed platform, strain-gauges are used measure in single cantilever mode while Ni-Ti-Cu Shape Memory Alloy (SMA) wires as force actuators. Data acquisition system implemented with ADuC microcontroller. The response structure open-loop was identify mathematical model system. To find appropriate controller reach best performance system, it techniques direct tuning (pole-zero cancellation) identified model. PI has been for different types reference signals, square, sinusoidal triangular. frequencies signals have varied observe which bandwidth can respond. Experimental results demonstrate usefulness smart structure.