Browse Publications Technical Papers 2000-01-0912

Experimental Measurements of V-Ribbed Belt Tracking Lateral Forces 2000-01-0912

Two instrumented pulleys were developed to empirically measure the dynamic lateral forces of V-Ribbed belts used in automotive accessory drives. The first test pulley utilizes two cantilever beams cut into the pulley with strain gauges attached to measure the lateral dynamic forces in each individual belt rib caused by misalignment. A test stand which simulates multiple accessory drive configurations at low-end drive speeds typical in automotive engines was implemented to create the dynamic response necessary. This test stand allows variations in lateral offset, toe, camber, tension, and span length, as well as in the speed of the system through a variable speed AC motor. The second test pulley utilizes a unidirectional load cell oriented to measure the total lateral force on the test pulley. After conducting static calibration tests of the two experimental systems, dynamic results were obtained using real time data acquisition. The experimental findings were then compared with finite element analysis simulation results


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