TY JOUR TI PATH OPTIMIZATION AND SINGULARITY AVOIDANCE IN ROBOTIC MANIPULATORS USING HYBRID ACO-FLC TECHNIQUES KW ant colony optimization KW singularity avoidance KW path optimization KW robotic manipulators KW intelligent control systems KW degree of freedom JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Alwardat, M.. AU Alwan, H.M. PY 2026 IS 11 PB Belgorod State Technological University named after V.G. Shukhov