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