Loading...
Please wait, while we are loading the content...
Similar Documents
An enhancement to the na4 gear vibration diagnostic parameter
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Handschuh, Robert F. Decker, Harry J. Zakrajsek, James J. |
| Copyright Year | 1994 |
| Description | A new vibration diagnostic parameter for health monitoring of gears, NA4*, is proposed and tested. A recently developed gear vibration diagnostic parameter NA4 outperformed other fault detection methods at indicating the start and initial progression of damage. However, in some cases, as the damage progressed, the sensitivity of the NA4 and FM4 parameters tended to decrease and no longer indicated damage. A new parameter, NA4* was developed by enhancing NA4 to improve the trending of the parameter. This allows for the indication of damage both at initiation and also as the damage progresses. The NA4* parameter was verified and compared to the NA4 and FM4 parameters using experimental data from single mesh spur and spiral bevel gear fatigue rigs. The primary failure mode for the test cases was naturally occurring tooth surface pitting. The NA4* parameter is shown to be a more robust indicator of damage. |
| File Size | 7037510 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940033010 |
| Archival Resource Key | ark:/13960/t8x974k2c |
| Language | English |
| Publisher Date | 1994-07-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Fatigue Tests Pitting Fatigue Life Gears Fault Detection Gear Teeth Systems Health Monitoring Failure Modes Vibration Tests Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
