Article (Scientific journals)
Influence of mesoscale friction interface geometry on the nonlinear dynamic response of large assembled structures
Yuan, Jie; Salles, Loïc; Nowell, David et al.
2023In Mechanical Systems and Signal Processing, 187, p. 109952
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Keywords :
Assembled structures; Contact mechanics; Damped nonlinear modal analysis; Friction interface; Multi-scale analysis; Contact Mechanics; Damped nonlinear modal analyse; Friction interfaces; Frictional interface; Interface geometry; Meso scale; Multi scale analysis; Nonlinear dynamic response; Nonlinear modal analysis; Control and Systems Engineering; Signal Processing; Civil and Structural Engineering; Aerospace Engineering; Mechanical Engineering; Computer Science Applications
Abstract :
[en] Friction interfaces are unavoidable components of large engineering assemblies since they enable complex designs, ensure alignment, and enable the transfer of mechanical loads between the components. Unfortunately, they are also a major source of nonlinearities and uncertainty in the static and dynamic response of the assembly, due to the complex frictional physics occurring at the interface. One major contributor to the nonlinear dynamic behavior of the interface is the mesoscale geometry of a friction interface. Currently, the effects of the interface geometry on the nonlinear dynamic response is often ignored in the analysis due to the high computational cost of discretizing the interface to such fine levels for classical finite element analysis. In this paper, the influence of mesoscale frictional interface geometries on the nonlinear dynamic response is investigated through an efficient multi-scale modeling framework based on the boundary element method. A highly integrated refined contact analysis, static analysis, and nonlinear modal analysis approach are presented to solve a multi-scale problem where mesoscale frictional interfaces are embedded into the macroscale finite element model. The efficiency of the framework is demonstrated and validated against an existing dovetail dogbone test rig. Finally, the effects of different mesoscale interface geometries such as surface waviness and edge radius, are numerically investigated, further highlighting the influence of mesoscale interface geometries on the nonlinear dynamics of jointed structures and opening a new research direction for the design of friction interfaces in friction involved mechanical systems.
Disciplines :
Mechanical engineering
Author, co-author :
Yuan, Jie ;  Aerospace Centre of Excellence, Department of Mechanical and Aerospace Engineering, University of Strathclyde, Glasgow, United Kingdom
Salles, Loïc  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Mechanical aspects of turbomachinery and aerospace propulsion ; Vibration University Technology Centre, Department of Mechancial Engineering, Imperial College London, SW7 2AZ, London, United Kingdom
Nowell, David;  Vibration University Technology Centre, Department of Mechancial Engineering, Imperial College London, SW7 2AZ, London, United Kingdom ; Department of Engineering Science, University of Oxford, Oxford, United Kingdom
Schwingshackl, Christoph ;  Vibration University Technology Centre, Department of Mechancial Engineering, Imperial College London, SW7 2AZ, London, United Kingdom
Language :
English
Title :
Influence of mesoscale friction interface geometry on the nonlinear dynamic response of large assembled structures
Publication date :
15 March 2023
Journal title :
Mechanical Systems and Signal Processing
ISSN :
0888-3270
eISSN :
1096-1216
Publisher :
Academic Press
Volume :
187
Pages :
109952
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
J. Yuan acknowledges the support of Small Research Grant from Royal Society of Edinburgh ( RSE/1754 ). J. Yuan, L. Salles and C. Schwingshackl also acknowledges the funding from the EPSRC, UK through SYSDYMATS project WP3 ( EP/R032793 ).
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since 29 November 2024

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