Analysis on lateral vibration of longitudinal roadheader at horizontal cutting

During the horizontal cutting process of the longitudinal roadheader,lateral force status of roadheader becomes very complicated because of the external random dynamic loadings acting on the cutting head.In the paper,after the lateral dynamic model of a longitudinal roadheader at horizontal cutting being established,the lateral vibration of the roadheader track at various operation conditions was obtained,and the variation curves of lateral forces of the roadheader track at various horizontal swing angles were achieved.The analysis offered theoretic basis for studying the dynamic characteristics,stability and reliability of the roadheader at horizontal cutting as well as provided references for studying the dynamics of other tracked vehicles.