| Title: | Blade couple with dry friction connection |
| Authors: | Půst, Ladislav Pešek, Luděk Radolfová, Alena |
| Advisor: | |
| Citation: | Applied and Computational Mechanics. 2015, vol. 9, no. 1, p. 31-40 |
| Issue Date: | 2015 |
| Publisher: | University of West Bohemia |
| Document type: | článek article |
| URI: | http://www.kme.zcu.cz/acm/acm/article/view/277/325 http://hdl.handle.net/11025/15515 |
| ISSN: | 1802-680X (Print) 2336-1182 (Online) |
| Keywords: | výpočtová mechanika;vibrace;olopatkované disky;matematické modelování |
| Keywords in different language: | stick-slip dry friction;tangential contact stiffness;hysteresis loop;response curves |
| Abstract: | Vibration of a blade couple damped by a dry friction contact in the shroud is investigated by means of hysteresis loops and response curves analysis. The studied system is excited by one harmonic external force in a frequency range near to the lowest eigenfrequency of real blades. Blades are connected by means of a damping element consisting of dry friction part linked in series with linear spring. This “stick-slip” damping element is supposed to be either weightless or of a very small mass which models the mass of elastically deformed parts of contacting bodies near the friction surface. Two approximate mathematical models of “stick-slip” dry friction elements are suggested and analysed. The response curves of blade couple connected by stick-slip damping element are presented for different values of slip friction forces and two values of mass of elastically deformed parts. |
| Rights: | © 2015 University of West Bohemia. All rights reserved. |
| Appears in Collections: | Volume 9, number 1 (2015) Volume 9, number 1 (2015) |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/15515Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.