The mechanical properties of conventional alloys remain fixed during service, making them unable to adapt to varying working conditions. Existing active regulation methods for smart materials mostly rely on quasi-static electric fields or broadband electrical signals, which suffer from high driving voltage, high power consumption, and low regulation efficiency. This paper proposes a novel active regulation paradigm called “frequency-alloy” pairing. By precisely matching the frequency of an alternating current to the mechanical resonance frequency of specific lattice vibration modes or second-phase piezoelectric particles within the alloy, the resonance amplification effect is utilized to achieve significant stiffness changes with very small electric field amplitudes. A systematic theoretical model is established, and detailed experimental design schemes and expected performance indicators are provided. This work lays a theoretical foundation for developing active vibration and deformation control technologies that do not require changing material composition. This regulation paradigm also shows potential for application in biomedical engineering fields such as smart implants and neural interfaces. Keywords: smart alloy; resonance driving; stiffness modulation; piezoelectric effect; active control
Ye cheng Pan (Thu,) studied this question.