Generally, a dynamic vibration absorber (DVA) is effective in suppressing single-frequency vibration, which would be unworkable for double-frequency vibration. This study introduces a dual quasi-zero-stiffness dynamic vibration absorber (DQZS-DVA) as a solution to this problem. Firstly, the DQZS-DVA with a pair of mutually exclusive permanent magnets as the negative stiffness mechanism (NSM) is designed, and its static characteristics are theoretically analyzed. Next, the Harmonic Balance Method (HBM) is used to derive an approximate analytical solution, and the effect of system parameters on ...
