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Comparison of structural performance of one- and two-bay rotary joints for truss applications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lake, Mark S. Vail Sr., J. Douglas |
| Copyright Year | 1991 |
| Description | The structural performance of one- and two-bay large-diameter discrete-bearing rotary joints was addressed for application to truss-beam structures such as the Space Station Freedom. Finite element analyses are performed to determine values for rotary joint parameters that give the same bending vibration frequency as the parent truss beam. The structural masses and maximum internal loads of these joints are compared to determine their relative structural efficiency. Results indicate that no significant difference exists in the masse of one- and two-bay rotary joints. This conclusion is reinforced with closed-form calculations of rotary joint structural efficiency in extension. Also, transition truss-member loads are higher in the one-bay rotary joint. However, because of the increased buckling strength of these members, the external load-carrying capability of the one-bay concept is higher than that of the two-bay concept. |
| File Size | 1049385 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910017884 |
| Archival Resource Key | ark:/13960/t14n43d2z |
| Language | English |
| Publisher Date | 1991-08-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Design, Testing And Performance Mass Finite Element Method Joints Junctions Space Station Freedom Frequencies Buckling Bending Vibration Space Stations Loads Forces Trusses Structural Analysis 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 |
