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Harmonic equivalence of the impulse loads in vibration fatigueOgrinec, Primož ; Slavič, Janko, 1978- ; Boltežar, MihaIn vibration fatigue, three unique types of loads are typical: random, harmonic and impulse. In an application any of these loads are possible. A fatigue-life analysis is possible in the time and ... frequency domains using the frequency-response function of a structure. Recent studies demonstrated that the impulse loads influence the accuracy of a fatigue-life prediction in the frequency domain. The focus of this research is a theoretical study of an equivalent harmonic load to the impulse load on a single-degree-of-freedom system in order to investigate the feasibility of impulse loads in vibration testing. This research shows that there is a relationship between the impulse and harmonic loads that is related to the underlying dynamic properties (e.g., damping, natural frequency). Based on a theoretical analysis an experimental procedure was developed for both cases of excitation, which was able to confirm the theoretical analysis. Using the modal decomposition the single-degree-of-freedom approach can be generalized to multiple-degrees-of-freedom systems.Vir: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Vol. 65, no. 11/12, Nov.-Dec. 2019, str. 631-640, SI 82)Vrsta gradiva - članek, sestavni delLeto - 2019Jezik - angleškiCOBISS.SI-ID - 16942107
Avtor
Ogrinec, Primož |
Slavič, Janko, 1978- |
Boltežar, Miha
Teme
vibration fatigue |
random loads |
spectral methods |
fatigue life |
stationary loading |
non-stationary loading |
non-Gaussian loading |
vibration testing |
vibracijsko utrujanje |
naključne obremenitve |
spektralne metode |
utrujanje materiala |
stacionarne obremenitve |
ne-stacionarne obremenitve
Vnos na polico
Trajna povezava
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Ogrinec, Primož | 38407 |
Slavič, Janko, 1978- | 23010 |
Boltežar, Miha | 02034 |
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