Jia-Gui Yu

Study on vibration characteristics of shearer spiral drum and fatigue life prediction of cutting unit housing under multi-factor coupling

Severe vibration and fatigue damage of the cutting unit housing remain key problems in thin-coal-seam shearers because coal-rock heterogeneity, drum structure, and motion parameters jointly generate nonlinear, time-varying cutting loads. Because field tests cannot efficiently isolate these coupled effects or reproduce...