Akademik Veri Yönetim Sistemi
Bulgarian Chemical Communications, cilt.54, sa.4, ss.324-331, 2022 (Scopus)
Automotive technology is constantly evolving with the desire to make engines light and to reach strong torques. The viscoelastic rubber material is seen as the most damaged material in crank pulleys structure used to dampen torsional vibrations. For this reason, the manufacturers' efforts to increase this structure's strength without departing from the design parameters of the rubber material are continuing today. In this study, nanosized alumina and zeolite reinforcements were introduced into natural and EPDM rubbers, which are non-linear materials, using spraying and homogeneous mixing methods. Tensile tests were carried out on reinforced and non-reinforced rubber samples. A graph was created with torque data corresponding to four different samples. The torsional stiffness was found from the slope of the graph. Experimental modal analysis results using a hammer were compared with torsional stiffness. A deviation close to 10% was observed between these two methods. Motor simulation and noise tests were performed on the sample pulleys and it was found that the most suitable pulley is the nanozeolite-reinforced crank pulley with the homogeneous mixing method (HMM).