Vol.2, No 1, 2004 pp. 83 -93
UDC 621.873.2/3:531.36:621.822.76
INFLUENCE OF ANGULAR BALL BEARING DEFORMATION
ON TRUCK-CRANE DYNAMIC STABILITY
Radomir Mijailović, Ratko Šelmić
Faculty of Transport and Traffic Engineering
Vojvode Stepe 305, University of Belgrade, Serbia and Montenegro
e-mail: radomirm@beotel.yu,
ratkos@eunet.yu
Abstract.The paper analyses the influence of angular ball bearing
deformation at the connecting point of the lower and upper machine assemblies
of the truck-crane using the dynamic model with five degrees of free motion.
For differential equations derivation Lagrange equations of the second
order are applied. Theoretical results obtained are verified by the numerical
example for various working operations of the truck-crane.
Key Words: Angular Ball Bearing, Deformation, Truck-crane, Dynamic
Stability.
UTICAJ DEFORMACIJE RADIJALNO-AKSIJALNOG
LEŽAJA NA DINAMIČKU STABILNOST AUTO-DIZALICE
U radu se analizira uticaj deformacije radijalno-aksijalnog ležaja na mestu
veze donjeg i gornjeg stroja auto-dizalice na dinamičku stabilnost auto-dizalice,
korišćenjem dinamičkog modela sa pet stepeni slobode kretanja. Za izvođenje
diferencijalnih jednačina kretanja primenjene su Lagranžove jednačine druge
vrste. Dobijeni teorijski rezultati su verifikovani numeričkim primerom
za različite radne operacije auto-dizalice.
Ključne reči: radijalno-aksijalni ležaj, deformacija, auto-dizalica,
dinamička stabilnost.
