This second of three volumes includes papers from the second series of NODYCON which was held virtually in February of 2021. The conference papers reflect a broad coverage of topics in nonlinear dynamics, ranging from traditional topics from established streams of research to those from relatively unexplored and emerging venues of research. These include

· Nonlinear vibration control

· Control of nonlinear systems and synchronization

· Experimental dynamics

· System identification and SHM

· Multibody dynamics