The performance characteristics of misaligned bidirectional dynamic vibration absorbers

Bidirectional dynamic vibration absorbers (DVAs) can simultaneously reduce the resonant response of two perpendicular modes of lightly damped structures. The performance of the DVA is affected if its directions of motion are not aligned with the structural modes. When the DVA is misaligned, the 2D structure–DVA system is represented as a coupled 4‐degree‐of‐freedom system. The efficacy of a DVA is often quantified using the concept of added …