TY JOUR TI METHOD TO STUDY KINEMATICS OF WORKING EQUIPMENT MOTION OF A BULLDOZER WITH EXTENDABLE SECTIONS KW blade KW sections KW equipment (hydraulic cylinders) KW kinematics KW research KW method JO Transport engineering AU Sladkova, L.A. AU Shchepalin, D.E. PY 2026 IS 2026 PB Bryansk State Technical University