In the current fatigue life calculation theory, the most commonly used method is the frequency domain method. However, most of the frequency domain fatigue life prediction models do not indicate the scope of the application of the spectral width parameter. Different frequency domain methods have strict applicability to the spectral width parameter, and improper model selection will lead significant error. Therefore, it is particularly important to determine the scope of application of the spectral width parameter for different frequency-domain methods. This paper firstly introduces the current frequency domain methods, then simulates the analogue spectrum and selects three materials for comparison in the different frequency-domain methods. By analyzing and comparing the results of random fatigue life and relative error results, the application of different frequency-domain methods is obtained, and random vibration simulation verification is carried out with the practical engineering example, which can provide a reference for the selection of life prediction models.
Research on the scope of spectral width parameter of frequency domain methods in random fatigue / Xu, J.; Zhang, Y.; Han, Q.; Li, J.; Lacidogna, G.. - In: APPLIED SCIENCES. - ISSN 2076-3417. - STAMPA. - 10:14(2020), p. 4715. [10.3390/app10144715]
Research on the scope of spectral width parameter of frequency domain methods in random fatigue
Lacidogna G.
2020
Abstract
In the current fatigue life calculation theory, the most commonly used method is the frequency domain method. However, most of the frequency domain fatigue life prediction models do not indicate the scope of the application of the spectral width parameter. Different frequency domain methods have strict applicability to the spectral width parameter, and improper model selection will lead significant error. Therefore, it is particularly important to determine the scope of application of the spectral width parameter for different frequency-domain methods. This paper firstly introduces the current frequency domain methods, then simulates the analogue spectrum and selects three materials for comparison in the different frequency-domain methods. By analyzing and comparing the results of random fatigue life and relative error results, the application of different frequency-domain methods is obtained, and random vibration simulation verification is carried out with the practical engineering example, which can provide a reference for the selection of life prediction models.File | Dimensione | Formato | |
---|---|---|---|
applsci-10-04715.pdf
accesso aperto
Descrizione: Articolo principale
Tipologia:
2a Post-print versione editoriale / Version of Record
Licenza:
Creative commons
Dimensione
19.12 MB
Formato
Adobe PDF
|
19.12 MB | Adobe PDF | Visualizza/Apri |
2020_06_27 论文修改终稿 张尧磊.pdf
accesso aperto
Descrizione: Articolo accettato
Tipologia:
2. Post-print / Author's Accepted Manuscript
Licenza:
Creative commons
Dimensione
5.47 MB
Formato
Adobe PDF
|
5.47 MB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/11583/2842664