Nonlinear broadband vibration reduction of nitinol-steel wire rope: Mechanical parameters determination and theoretical-experimental validation

This study validates the nonlinear broadband vibration reduction capability of Nitinol steel wire rope (NiTi-ST). Hysteresis tests on NiTi-ST provide hysteresis force-displacement data, and mechanical parameter calculations are performed by developing a fitting model. A dynamic model of a composite laminated cantilever plate embedded with NiTi-ST is developed. The modal analysis is performed using the Rayleigh-Ritz method, and accurate modal functions are obtained. The dynamical equations are solved using the Galerkin truncation and harmonic balance methods. Experimental results demonstrate NiTi-ST's global broadband vibration reduction at various temperatures, with a decrease in effectiveness as temperature rises. These experimental results are consistent with the theoretical analysis. This study firstly experimentally validates NiTi-ST's nonlinear behavior, and provides technical support for NiTi-ST's use as a nonlinear vibration reduction device.