Abstract
This study experimentally investigated the friction noise in the lead screw system. The mechanism involved in the friction noise was analyzed on basis of the mode-coupling characteristics. Therefore, the frequency separation between two modes near the squeak frequency was traced with the location of nut. It was found that the friction noise of the lead screw was generated only at the nut location where the frequencies of the axial and torsion modes were met. It indicated that the friction noise in the lead screw system was caused by the mode coupling between the torsion and axial modes.
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