EFFECTS OF FLEXIBILITY AND DAMPING ON MOMENTUM-TRANSFER DURING LOCKING OF 2 MOVING LINKS, PART-I - NUMERICAL-SIMULATION

Citation
W. Szyszkowski et K. Fielden, EFFECTS OF FLEXIBILITY AND DAMPING ON MOMENTUM-TRANSFER DURING LOCKING OF 2 MOVING LINKS, PART-I - NUMERICAL-SIMULATION, Journal of applied mechanics, 65(2), 1998, pp. 479-484
Citations number
6
Categorie Soggetti
Mechanics
ISSN journal
00218936
Volume
65
Issue
2
Year of publication
1998
Pages
479 - 484
Database
ISI
SICI code
0021-8936(1998)65:2<479:EOFADO>2.0.ZU;2-9
Abstract
The system consisting of two links and two joints is examined. The joi nts are idealy frictionless when unlocked. Due to flexibility of the l inks, the locking generates some damped vibrations. It is demonstrated that the presence of these vibrations, even of very small and seeming ly neglegible amplitudes, have dramatic effects on the after-locking m otion of the links. Depending on the level of flexibility and damping involved, the locking triggers a large-scale ''slow'' motion that may have either oscillatory or circular (clockwise or counterclockwise) ch aracters. The links will stop at some resting configuration only at ce rtain ''critical'' values of damping. The set of ''critical dampings'' seems to be infinite, though only two degrees-of-freedom are used to model the system. Governing equations for these phenomena are derived and discussed in Part II of this paper.