TY JOUR TI STRUCTURAL SYNTHESIS OF EIGHT-BAR CLOSED KINEMATIC CHAINS OF THE FIRST FAMILY ELEVENTH SUBFAMILY MOVABLE LINKS OF THE FOURTH TYPE KW system KW chain KW links KW circuit KW mobility KW kinematic pair JO Transport engineering AU Vovkotrub, V.V. PY 2025 IS 2025 PB Bryansk State Technical University