Abstract
The dynamic excitation generated in gears influences the gearbox fatigue life and durability. The current methodology, "duty cycle", of predicting gear fatigue life is based solely on running hours and transmitted mean load is considered insufficient in correctly defining how much of the gearbox fatigue life has actually been expanded. The problem to be address is to investigate dynamic mean excitation to be used in predicting the gearbox fatigue life. A generic theoretical statistical analysis was developed to investigate the ratio of the dynamic mean excitation to the transmitted mean load of a spur gear. Innovative methodology for the estimation of this ratio was carried out. It was shown for gear with profile modification that the dynamic mean excitation can be more than, less than, or equal to the transmitted mean load, depending on the time-varying mesh stiffness, static transmission error, cross-correlation between these functions, and transmitted mean load. Numerical examples were discussed.
Original language | English |
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Title of host publication | Proceedings of the Third European Workshop |
Subtitle of host publication | Structural Health Monitoring 2006 |
Editors | Alfredo Güemes |
Place of Publication | Lancaster |
Publisher | DEStech Publications Inc. |
Pages | 1291-1299 |
Number of pages | 9 |
ISBN (Print) | 1932078630, 9781932078633 |
Publication status | Published - 2006 |
Externally published | Yes |
Event | 3rd European Workshop on Structural Health Monitoring - Granada, Spain Duration: 5 Jul 2006 → 7 Jul 2006 Conference number: 3 |
Conference
Conference | 3rd European Workshop on Structural Health Monitoring |
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Country/Territory | Spain |
City | Granada |
Period | 5/07/06 → 7/07/06 |