Accession Number : ADP003671

Title :   Damped Vibrations of a Jointed Cantilever Beam,

Corporate Author : HANOVER UNIV (GERMANY F R) INST FUER MECHANIK

Personal Author(s) : Wissbrok,H.

Report Date : 1984

Pagination or Media Count : 12

Abstract : The application of these methods to machine tool frames is restricted by some disadvantages. Visco-elastic layers must be very thick. Discret dashpots are more suitable for the reduction of local vibrations. The optimization of friction damping in the joints requires a non-acceptable loss of stiffness. This paper is concerned with the idea of avoiding this stiffness reduction by additional frictional interfaces. Such interfaces are formed by fastening additional e.g. beam-like elements on the vibrating frame regions. These so-called frictional ledges can be fixed with an interface pressure for maximal damping without any reduction of the machine stiffness.

Descriptors :   *Structural mechanics, *Vibration, *Cantilever beams, Welded joints, Damping, Sliding contacts, Equations of motion, Dynamic response, Viscoelasticity, Stiffness, Machine tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE