FIELD: electricity.
SUBSTANCE: motor comprises piezoelectric plate. Piezoelectric plate is arranged in the form of polyhedron, at least, one of tops of which is pressed to friction surface. At the same time secant plane, perpendicular to large surfaces of plate and passing through this top, divides the plate into two parts, every of which includes at least one autonomous generator of 2D still acoustic wave. On top of polyhedron, interacting with friction surface, a friction element may be rigidly fixed.
EFFECT: simplified design, improved efficiency and reliability of operation.
3 cl, 3 dwg
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