Details
| Translated title of the contribution | Vibration damping by friction forces: Theory, experiment, applications |
|---|---|
| Original language | German |
| Title of host publication | Schwingungsdämpfung |
| Subtitle of host publication | Modellbildung - numerische Umsetzung - experimentelle Verfahren - praxisrelevante passive und adaptive Anwendungen |
| Pages | 71-95 |
| Number of pages | 25 |
| Publication status | Published - 2007 |
| Event | Schwingungsdämpfung - Wiesloch, Germany Duration: 16 Oct 2007 → 17 Oct 2007 |
Publication series
| Name | VDI Berichte |
|---|---|
| Number | 2003 |
| ISSN (Print) | 0083-5560 |
Abstract
In many technical applications, structures are assembled by a large number of substructures, parts and linear or non-linear connecting elements such as springs, dampers or active elements. While the resulting stiffness and inertia properties of interconnected parts may be predicted with sufficient accuracy, the evaluation of the damping amount and, thus, the vibration amplitude of structures subjected to external loads is a complicated, elaborate and time-consuming task. The existing friction interfaces, e.g. in flange or bolt connections, can be utilized to provide a significant amount of damping due to energy dissipation caused by microslip or macroscopic relative displacements between the contacting bodies. By designing these interconnections accurately or, alternatively, creating additional friction contacts, the damping can be increased remarkably, affecting the vibration amplitudes, reliability and lifetime of a structure. Starting with the theoretical background of existing contact models and solution techniques for non-linear differential equations with friction forces, a systematic procedure for designing friction interfaces in order to maximize the damping is presented. The influence on the structural stiffness and the expected damping ratio will be discussed. The developed theoretical models are accompanied by experimental tests at different sample structures with friction contacts to show the great potential of friction damping. Beam structures, space structures, turbine blades and combustion engines will serve as examples of the variety of different technical applications where friction damping can be used successfully to reduce vibration amplitudes.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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Schwingungsdämpfung: Modellbildung - numerische Umsetzung - experimentelle Verfahren - praxisrelevante passive und adaptive Anwendungen. 2007. p. 71-95 (VDI Berichte; No. 2003).
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Schwingungsdämpfung Durch Reibung
T2 - Schwingungsdämpfung
AU - Panning, L.
AU - Kröger, M.
AU - Wallaschek, J.
N1 - Copyright: Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - In many technical applications, structures are assembled by a large number of substructures, parts and linear or non-linear connecting elements such as springs, dampers or active elements. While the resulting stiffness and inertia properties of interconnected parts may be predicted with sufficient accuracy, the evaluation of the damping amount and, thus, the vibration amplitude of structures subjected to external loads is a complicated, elaborate and time-consuming task. The existing friction interfaces, e.g. in flange or bolt connections, can be utilized to provide a significant amount of damping due to energy dissipation caused by microslip or macroscopic relative displacements between the contacting bodies. By designing these interconnections accurately or, alternatively, creating additional friction contacts, the damping can be increased remarkably, affecting the vibration amplitudes, reliability and lifetime of a structure. Starting with the theoretical background of existing contact models and solution techniques for non-linear differential equations with friction forces, a systematic procedure for designing friction interfaces in order to maximize the damping is presented. The influence on the structural stiffness and the expected damping ratio will be discussed. The developed theoretical models are accompanied by experimental tests at different sample structures with friction contacts to show the great potential of friction damping. Beam structures, space structures, turbine blades and combustion engines will serve as examples of the variety of different technical applications where friction damping can be used successfully to reduce vibration amplitudes.
AB - In many technical applications, structures are assembled by a large number of substructures, parts and linear or non-linear connecting elements such as springs, dampers or active elements. While the resulting stiffness and inertia properties of interconnected parts may be predicted with sufficient accuracy, the evaluation of the damping amount and, thus, the vibration amplitude of structures subjected to external loads is a complicated, elaborate and time-consuming task. The existing friction interfaces, e.g. in flange or bolt connections, can be utilized to provide a significant amount of damping due to energy dissipation caused by microslip or macroscopic relative displacements between the contacting bodies. By designing these interconnections accurately or, alternatively, creating additional friction contacts, the damping can be increased remarkably, affecting the vibration amplitudes, reliability and lifetime of a structure. Starting with the theoretical background of existing contact models and solution techniques for non-linear differential equations with friction forces, a systematic procedure for designing friction interfaces in order to maximize the damping is presented. The influence on the structural stiffness and the expected damping ratio will be discussed. The developed theoretical models are accompanied by experimental tests at different sample structures with friction contacts to show the great potential of friction damping. Beam structures, space structures, turbine blades and combustion engines will serve as examples of the variety of different technical applications where friction damping can be used successfully to reduce vibration amplitudes.
UR - http://www.scopus.com/inward/record.url?scp=36348965896&partnerID=8YFLogxK
M3 - Beitrag in Buch/Sammelwerk
AN - SCOPUS:36348965896
SN - 3180920033
SN - 9783180920030
T3 - VDI Berichte
SP - 71
EP - 95
BT - Schwingungsdämpfung
Y2 - 16 October 2007 through 17 October 2007
ER -