info:eu-repo/semantics/conferenceProceedings application/pdf 1116333 bytes All rights reserved Proceedings of the International Conference on Nonlinear Dynamics and Application ICNDA 2022, East Sikiim, India, March 9-11, 2022. Kostić, Srđan Vasović, Nebojša eng 2022 Springer Delay-resilient dynamics of a landslide mechanical model Abstract: In present paper we analyze dynamics of a simple landslide mechanical model induced by the co-action of included time delay between the motion of the neighboring blocks and their coupling strength. Analyzed mechanical model represents an idealized interaction between accumulation and feeder slope at the accumulation coast. Dynamics of the proposed dynamical system is examined by applying standard bifurcation analysis: we derive explicit relations between time delay, spring stiffness and control parameters, while bifurcation curves are derived numerically. The results of the presented research indicate the onset of Hopf bifurcation, i.e. occurrence of instability for rather high values of the assumed time delay and spring stiffness, which indicates that slope instability occurs only in case when feeder and accumulation slope are observed as strongly coupled, but with a significant delay in interaction. Moreover, we showed that the increase of friction force along the sliding surface suppresses the effect of time delay, indicating that sliding surfaces with low friction parameters are prone to onset of instability. Landslide, Time delay, Spring stiffness, Friction, Bifurcation https://unilib.phaidrabg.rs/o:958 doi:10.1007/978-3-030-99792-2_93