On break-away forces in actuated motion systems with nonlinear friction
Journal article, Peer reviewed
Accepted version
Permanent lenke
http://hdl.handle.net/11250/2436424Utgivelsesdato
2017Metadata
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Originalversjon
Ruderman, M. (2017). On break-away forces in actuated motion systems with nonlinear friction. Mechatronics, 44. doi: 10.1016/j.mechatronics.2017.03.007Sammendrag
The phenomenon of so-called break-away forces, as maximal actuation forces at which a sticking system begins to slide and thus passes over to a steady (macro) motion, is well known from the engineering practice but still less understood in its cause-effect relationship. This note analyzes the break-away behavior of systems with nonlinear friction, which is well-describable analytically by combining the Coulomb friction law with the rate-independent presliding transitions and, when necessary, Stribeck effect of the velocity-weakening steady-state curve. The break-away conditions are brought into an analytic form of the system description and shown to be in accord with a relationship between the varying break-away force and actuation force rate – that is observable in experiments reported in various independently published works.
Beskrivelse
Author's accepted manuscript