METHOD OF SIMULATING TRANSIENT PROCESSES OF ACCUMULATION OF DAMAGES IN A DIAGNOSED OBJECT AND A DEVICE OF A BIFURCATION MODEL

摘要

FIELD: simulation of processes.;SUBSTANCE: use to simulate unstable transient processes of damage accumulation in a diagnosed object with registration of points of structural and system bifurcation. Summary of invention consists in the fact that to record dynamics of transient processes during formation of bulk cone and change of their trend at points of structural and system bifurcation, due to accumulation of critical mass of granulate at apex of cone, its settling under action of own weight and subsequent avalanche caving, it is proposed to create conditions of conic surface collapse of granulate at low thickness of formed layer δ=10–20 mm, and time strobing of transient processes is carried out by synchronous recording of video images and arrays of local pulses, recorded using acoustic emission monitoring, every second separating AE signals into clusters of lower, middle and upper energy level, by counting frequency of their registration ω_i=L,M,U and percentage content W_i=L,M,U, fixing the dynamics of these parameters on the graphs and changing the trend of transient processes at the points of structural and system bifurcation, thus confirming the moments of their recording with frames of high-speed video filming.;EFFECT: possibility of simulating the dynamics of changing trend of accumulation of damages in points of structural and system bifurcation occurring in the diagnosed object.;8 cl, 8 dwg