DYANMIC ANALYSIS OF SHAPE MEMORY ALLOY OSCILLATORS IN ACTIVE SUSPENSION SYSTEM

Smart materials have a growing technological importance due to their unique thermomechanical characteristics. Shape memory alloys belong this class of being easy manufacture, relatively lightweight, and able produce high forces or displacements with low power consumption. These aspects could be exploited in different applications including vibration control. A dynamic absorber (DVA) can used as an effective control device. It is essentially secondary mass, attached original system via spring damper. The natural frequency the DVA tuned such that it coincides unwanted system. This work aims develop help shape alloy (SMA) springs order attenuate for range excitation frequencies. experimental apparatus consisted low-friction cars free move rail. shaker provides harmonic forcing excites Special attention dedicated analysis reduction achieved by considering approaches exploiting temperature variations promoted either electric current changes techniques. results established adaptability defined modulus stiffness