INVESTIGATION SOUND FREQUENCY OF TIRE FAILURE IN DRUM TEST MACHINE

Indoor test on the tire using the drum test machine by applying pressure and rotation according to the test method that has been determined until the tire is damaged, even until the tire explodes. This is done by measuring the maximum strength of the tire. Damage or explosion on the tire when testing takes place is not expected to occur, because this explosion can damage the drum test machine. For research and development purposes it is necessary to find out the location of the initial damage to the tire so that it can be improved on the weak part of the tire. A few moments before the tire is damaged a lump on the tire occurs and produces an unusual sound. This change in the frequency of sound that occurs before and when the initial tire is damaged will be analyzed, which will then be used to create a tire damage detection system so that the test can be stopped when the tire has initial damage.