How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?

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CIANETTI, Filippo .
How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 66, n.10, p. 557-566, october 2020. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/how-to-experimentally-monitor-fatigue-behavior-of-mechanical-systems/>. Date accessed: 23 oct. 2021. 
doi:http://dx.doi.org/10.5545/sv-jme.2020.6853.
Cianetti, F.
(2020).
How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?.
Strojniški vestnik - Journal of Mechanical Engineering, 66(10), 557-566.
doi:http://dx.doi.org/10.5545/sv-jme.2020.6853
@article{sv-jmesv-jme.2020.6853,
	author = {Filippo  Cianetti},
	title = {How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {66},
	number = {10},
	year = {2020},
	keywords = {fatigue; damage; rain flow counting; random loads},
	abstract = {Fatigue damage and, in general, fatigue behaviour is not simple to observe or estimate during the operational life of a generic vibrating mechanical system. There are a lot of theoretical or numerical methods that allow to evaluate it or by knowing a priori the loading conditions and obtaining output stress states by adopting numerical models of the mechanical system or by directly experimentally measuring and acquiring stress/strain states. A few examples of instruments (e.g. rain flow recorders) or measurement chains dedicated to estimate it in time domain or frequency domain are found in the literature but none that fully both observes the system dynamic behaviour and estimates the related actualized cumulated damage, and, thus, none that can estimate the residual life of the system itself. In this paper, a simple time-domain method, designed to monitor the instantaneous fatigue behaviour by definition of the instantaneous and cumulated potential damage or of equivalent damage signal amplitude is presented, based on rain-flow counting method and a damage linear cumulation law and starting from system dynamics signals. This methodology was designed to overestimate real damage to alert the system manager before any crack starts and to be simply translated into electronic boards that can be mounted on generic mechanical systems and linked to one of the sensors that usually monitor system functionality.},
	issn = {0039-2480},	pages = {557-566},	doi = {10.5545/sv-jme.2020.6853},
	url = {https://www.sv-jme.eu/article/how-to-experimentally-monitor-fatigue-behavior-of-mechanical-systems/}
}
Cianetti, F.
2020 October 66. How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 66:10
%A Cianetti, Filippo 
%D 2020
%T How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?
%B 2020
%9 fatigue; damage; rain flow counting; random loads
%! How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?
%K fatigue; damage; rain flow counting; random loads
%X Fatigue damage and, in general, fatigue behaviour is not simple to observe or estimate during the operational life of a generic vibrating mechanical system. There are a lot of theoretical or numerical methods that allow to evaluate it or by knowing a priori the loading conditions and obtaining output stress states by adopting numerical models of the mechanical system or by directly experimentally measuring and acquiring stress/strain states. A few examples of instruments (e.g. rain flow recorders) or measurement chains dedicated to estimate it in time domain or frequency domain are found in the literature but none that fully both observes the system dynamic behaviour and estimates the related actualized cumulated damage, and, thus, none that can estimate the residual life of the system itself. In this paper, a simple time-domain method, designed to monitor the instantaneous fatigue behaviour by definition of the instantaneous and cumulated potential damage or of equivalent damage signal amplitude is presented, based on rain-flow counting method and a damage linear cumulation law and starting from system dynamics signals. This methodology was designed to overestimate real damage to alert the system manager before any crack starts and to be simply translated into electronic boards that can be mounted on generic mechanical systems and linked to one of the sensors that usually monitor system functionality.
%U https://www.sv-jme.eu/article/how-to-experimentally-monitor-fatigue-behavior-of-mechanical-systems/
%0 Journal Article
%R 10.5545/sv-jme.2020.6853
%& 557
%P 10
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 66
%N 10
%@ 0039-2480
%8 2020-10-14
%7 2020-10-14
Cianetti, Filippo.
"How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?." Strojniški vestnik - Journal of Mechanical Engineering [Online], 66.10 (2020): 557-566. Web.  23 Oct. 2021
TY  - JOUR
AU  - Cianetti, Filippo 
PY  - 2020
TI  - How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2020.6853
KW  - fatigue; damage; rain flow counting; random loads
N2  - Fatigue damage and, in general, fatigue behaviour is not simple to observe or estimate during the operational life of a generic vibrating mechanical system. There are a lot of theoretical or numerical methods that allow to evaluate it or by knowing a priori the loading conditions and obtaining output stress states by adopting numerical models of the mechanical system or by directly experimentally measuring and acquiring stress/strain states. A few examples of instruments (e.g. rain flow recorders) or measurement chains dedicated to estimate it in time domain or frequency domain are found in the literature but none that fully both observes the system dynamic behaviour and estimates the related actualized cumulated damage, and, thus, none that can estimate the residual life of the system itself. In this paper, a simple time-domain method, designed to monitor the instantaneous fatigue behaviour by definition of the instantaneous and cumulated potential damage or of equivalent damage signal amplitude is presented, based on rain-flow counting method and a damage linear cumulation law and starting from system dynamics signals. This methodology was designed to overestimate real damage to alert the system manager before any crack starts and to be simply translated into electronic boards that can be mounted on generic mechanical systems and linked to one of the sensors that usually monitor system functionality.
UR  - https://www.sv-jme.eu/article/how-to-experimentally-monitor-fatigue-behavior-of-mechanical-systems/
@article{{sv-jme}{sv-jme.2020.6853},
	author = {Cianetti, F.},
	title = {How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {66},
	number = {10},
	year = {2020},
	doi = {10.5545/sv-jme.2020.6853},
	url = {https://www.sv-jme.eu/article/how-to-experimentally-monitor-fatigue-behavior-of-mechanical-systems/}
}
TY  - JOUR
AU  - Cianetti, Filippo 
PY  - 2020/10/14
TI  - How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 66, No 10 (2020): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2020.6853
KW  - fatigue, damage, rain flow counting, random loads
N2  - Fatigue damage and, in general, fatigue behaviour is not simple to observe or estimate during the operational life of a generic vibrating mechanical system. There are a lot of theoretical or numerical methods that allow to evaluate it or by knowing a priori the loading conditions and obtaining output stress states by adopting numerical models of the mechanical system or by directly experimentally measuring and acquiring stress/strain states. A few examples of instruments (e.g. rain flow recorders) or measurement chains dedicated to estimate it in time domain or frequency domain are found in the literature but none that fully both observes the system dynamic behaviour and estimates the related actualized cumulated damage, and, thus, none that can estimate the residual life of the system itself. In this paper, a simple time-domain method, designed to monitor the instantaneous fatigue behaviour by definition of the instantaneous and cumulated potential damage or of equivalent damage signal amplitude is presented, based on rain-flow counting method and a damage linear cumulation law and starting from system dynamics signals. This methodology was designed to overestimate real damage to alert the system manager before any crack starts and to be simply translated into electronic boards that can be mounted on generic mechanical systems and linked to one of the sensors that usually monitor system functionality.
UR  - https://www.sv-jme.eu/article/how-to-experimentally-monitor-fatigue-behavior-of-mechanical-systems/
Cianetti, Filippo"How to Experimentally Monitor the Fatigue Behaviour of Vibrating Mechanical Systems?" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 66 Number 10 (14 October 2020)

Authors

Affiliations

  • University of Perugia, Italy 1

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 66(2020)10, 557-566

https://doi.org/10.5545/sv-jme.2020.6853

Fatigue damage and, in general, fatigue behaviour is not simple to observe or estimate during the operational life of a generic vibrating mechanical system. There are a lot of theoretical or numerical methods that allow to evaluate it or by knowing a priori the loading conditions and obtaining output stress states by adopting numerical models of the mechanical system or by directly experimentally measuring and acquiring stress/strain states. A few examples of instruments (e.g. rain flow recorders) or measurement chains dedicated to estimate it in time domain or frequency domain are found in the literature but none that fully both observes the system dynamic behaviour and estimates the related actualized cumulated damage, and, thus, none that can estimate the residual life of the system itself. In this paper, a simple time-domain method, designed to monitor the instantaneous fatigue behaviour by definition of the instantaneous and cumulated potential damage or of equivalent damage signal amplitude is presented, based on rain-flow counting method and a damage linear cumulation law and starting from system dynamics signals. This methodology was designed to overestimate real damage to alert the system manager before any crack starts and to be simply translated into electronic boards that can be mounted on generic mechanical systems and linked to one of the sensors that usually monitor system functionality.

fatigue; damage; rain flow counting; random loads