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Pressure decay testing methodology for quantifying leak rates of full-scale docking system seals
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Daniels, Christopher C. Dunlap Jr., Patrick H. Steinetz, Bruce M. Wasowski, Janice L. Penney Sr., Nicholas Garafolo, Nicholas G. |
| Copyright Year | 2010 |
| Description | NASA is developing a new docking system to support future space exploration missions to low-Earth orbit and the Moon. This system, called the Low Impact Docking System, is a mechanism designed to connect the Orion Crew Exploration Vehicle to the International Space Station, the lunar lander (Altair), and other future Constellation Project vehicles. NASA Glenn Research Center is playing a key role in developing the main interface seal for this docking system. This seal will be relatively large with an outside diameter in the range of 54 to 58 in. (137 to 147 cm). As part of this effort, a new test apparatus has been designed, fabricated, and installed to measure leak rates of candidate full-scale seals under simulated thermal, vacuum, and engagement conditions. Using this test apparatus, a pressure decay testing and data processing methodology has been developed to quantify full-scale seal leak rates. Tests performed on untreated 54 in. diameter seals at room temperature in a fully compressed state resulted in leak rates lower than the requirement of less than 0.0025 lbm, air per day (0.0011 kg/day). |
| File Size | 6720927 |
| Page Count | 23 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100019164 |
| Archival Resource Key | ark:/13960/t6d26x460 |
| Language | English |
| Publisher Date | 2010-04-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Leakage International Space Station Vacuum Low Earth Orbits Moon Data Processing Space Exploration Crew Exploration Vehicle Spacecraft Docking 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 |
