MONITORING OF PHYSICAL-MECHANICAL STATE OF THE SEA ICE

摘要

Information about physical and mechanical processes in the ice based on instrumental observations on the drifting and land fast ice is presented. Methods of measurement of the parameters of ice oscillations and waves in Russian expeditions in the Arctic were used. Force of interaction of sea ice generates large-scale effects of self-excited oscillations. Natural dynamical processes in the drifting ice floes (system "ice-ice") reflect many forms of deformation and failure of the ice, observed at the interaction in the system "ice-structure". Especially it relates to the effects discussed in ISO 19906 2010 as a lock-in or self-excited vibration. The mechanics of interaction of a sea ice with icebergs also can be considered as analogue of interaction in the system "ice-structure".