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Rotordynamic characteristics of the hpotp (high pressure oxygen turbopump) of the ssme (space shuttle main engine)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Childs, D. W. |
| Copyright Year | 1984 |
| Description | Rotational stability of turbopump components in the space shuttle main engine was studied via analysis of component and structural dynamic models. Subsynchronous vibration caused unacceptable migration of the rotor/housing unit with unequal load sharing of the synchronous bearings that resulted in the failure of the High Pressure Oxygen Turbopump. Linear analysis shows that a shrouded inducer eliminates the second critical speed and the stability problem, a stiffened rotor improves the rotordynamic characteristics of the turbopump, and installing damper boost/impeller seals reduces bearing loads. Nonlinear analysis shows that by increasing the "dead band' clearances, a marked reduction in peak bearing loads occurs. |
| File Size | 2148807 |
| Page Count | 60 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840011321 |
| Archival Resource Key | ark:/13960/t89h0gw7s |
| Language | English |
| Publisher Date | 1984-01-30 |
| Access Restriction | Open |
| Subject Keyword | Space Transportation Rotary Stability Nonlinear Equations Housings Bearings Pressure Distribution Mechanical Properties Labyrinth Seals Pump Impellers Seals Stoppers Turbine Pumps Rotor Blades Turbomachinery Liquid Oxygen Space Shuttle Main Engine Mathematical Models Linear Equations Liquid Hydrogen Critical Velocity Loads Forces 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 |
