Imperial College London
Alternate

DrChristophSchwingshackl

Faculty of Engineering, Department of Mechanical Engineering

Reader in Mechanical Engineering
 
 
 
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Contact

 

+44 (0)20 7594 1920c.schwingshackl Website

 
 
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Location

 

559City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lasen:2024:10.1016/j.ymssp.2024.111198,
author = {Lasen, M and Dini, D and Schwingshackl, CW},
doi = {10.1016/j.ymssp.2024.111198},
journal = {Mechanical Systems and Signal Processing},
title = {Experimental control of frictional contact behaviour via piezoelectric actuation},
url = {http://dx.doi.org/10.1016/j.ymssp.2024.111198},
volume = {211},
year = {2024}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Assembled structures in complex machinery usually have many joints, used to reduce assembly time and manufacturing complexity, to facilitate maintenance, ensure sealing and provide overall structural stiffness. Joints in these structures can change the stiffness and introduce friction damping and hence they impact the dynamic behaviour of the overall assembly. Currently, the joint impact on the structure is mainly considered only as defined at the design stage; however, attempts are underway to use the frictional interfaces to improve and control the overall dynamic performance during operation. This paper explores the possibility of actively manipulating the interface geometry of a frictional joint to influence its stiffness and energy dissipation capabilities. A proof of concept experimental campaign, of a novel concept that changes the hysteretic behaviour and frequency responses in dry friction contacts by means of a series of piezoelectric actuators will be presented and discussed. The experimental results are compared against simulation results obtained using a finite element model. The investigation shows that the concept is feasible and that it effectively changes the contact conditions, by changing the hysteresis loops and influencing the frequency responses from hammer test.
AU  - Lasen,M
AU  - Dini,D
AU  - Schwingshackl,CW
DO  - 10.1016/j.ymssp.2024.111198
PY  - 2024///
SN  - 0888-3270
TI  - Experimental control of frictional contact behaviour via piezoelectric actuation
T2  - Mechanical Systems and Signal Processing
UR  - http://dx.doi.org/10.1016/j.ymssp.2024.111198
VL  - 211
ER  -
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