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Predicted effect of dynamic load on pitting fatigue life for low-contact-ratio spur gears
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lewicki, David G. |
| Copyright Year | 1986 |
| Description | How dynamic load affects the surface pitting fatigue life of external spur gears was predicted by using the NASA computer program TELSGE. Parametric studies were performed over a range of various gear parameters modeling low-contact-ratio involute spur gears. In general, gear life predictions based on dynamic loads differed significantly from those based on static loads, with the predictions being strongly influenced by the maximum dynamic load during contact. Gear mesh operating speed strongly affected predicted dynamic load and life. Meshes operating at a resonant speed or one-half the resonant speed had significantly shorter lives. Dynamic life factors for gear surface pitting fatigue were developed on the basis of the parametric studies. In general, meshes with higher contact ratios had higher dynamic life factors than meshes with lower contact ratios. A design chart was developed for hand calculations of dynamic life factors. |
| File Size | 1086333 |
| Page Count | 19 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870008662 |
| Archival Resource Key | ark:/13960/t53f9n91c |
| Language | English |
| Publisher Date | 1986-06-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Pitting Gears Gear Teeth Life Durability Fatigue Materials Stiffness Applications Programs Computers Dynamic Loads Velocity Rolling Moments Prediction Analysis Techniques Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
