Friction and wear behavior of linear standing-wave ultrasonic motors with V-shape transducers

• Published in: Tribology international Vol. 95; pp. 95 - 108
• Main Authors: Zhang, Yanhu, Qu, Jianjun, Li, Jinbang
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.03.2016
• Subjects: Ceramic; Contact; Dry friction; Dynamical systems; Fretting; Friction; Nonlinear dynamics; Surface topography; Transducers; Wear; Wear tests; Ceramic; Surface topography; Wear; Dry friction
• ISSN: 0301-679X; 1879-2464
• DOI: 10.1016/j.triboint.2015.10.038

Coulomb friction model is modified with considering the preliminary distance of rigid bristles and shear stiffness of the contact surface. The degeneration in friction drive and wear behavior induced by nonlinear contact (i.e., impact, intermittent, and fretting) is outlined. Wear tests of LUSMs with V-shape transducers are conducted by a homemade reciprocating apparatus. Results show that chemical inertness, thermotolerance, elasticity as well as surface topography are critical for the contact interface of LUSMs A systematic approach involving, for instance, dynamic contact, friction model, and wear behavior provides new perspectives in improving service performances and promoting practical applications. •Dynamic contact and friction drive of standing-wave ultrasonic motor were analyzed.•Wear surfaces were characterized by roughness parameters, Abbot curve, and surface topography.•Operational characteristics was exhibited for LUSMs of different friction pairs.•Wear mechanisms were dominated by plastic deformation, microcracking and/or thermal stress.