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NASA-LLIS-0175
Lessons Learned - Solid Rocket Motor (SRM) Field Joints
Year: 1992
Abstract: Description of Driving Event:
The SRM Is the primary propulsive element for the space shuttle. The SRM consists of: an insulated and lined segmented rocket motor case loaded with solid propellant; an ignition system complete with electromechanical safe and arm device, initiator, and load ignitor; a movable nozzle; raceway bracketry; instrumentation; and the necessary integration hardware. Structurally, a SRM is configured with a forward rocket motor segment, two center rocket motor segments, and one aft rocket motor segment. A field joint is that portion of the SRM segment that is assembled/stacked at KSC to create the finished SRM. These field joints are susceptible to environmental conditions and were not qualification tested to the full range of environments. This led to a lack of complete understanding of the joint design limits.
The SRM Is the primary propulsive element for the space shuttle. The SRM consists of: an insulated and lined segmented rocket motor case loaded with solid propellant; an ignition system complete with electromechanical safe and arm device, initiator, and load ignitor; a movable nozzle; raceway bracketry; instrumentation; and the necessary integration hardware. Structurally, a SRM is configured with a forward rocket motor segment, two center rocket motor segments, and one aft rocket motor segment. A field joint is that portion of the SRM segment that is assembled/stacked at KSC to create the finished SRM. These field joints are susceptible to environmental conditions and were not qualification tested to the full range of environments. This led to a lack of complete understanding of the joint design limits.
Subject: Environment
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:55:44Z | |
| date available | 2017-09-04T15:55:44Z | |
| date copyright | 33900 | |
| date issued | 1992 | |
| identifier other | BEZCQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/59079 | |
| description abstract | Description of Driving Event: The SRM Is the primary propulsive element for the space shuttle. The SRM consists of: an insulated and lined segmented rocket motor case loaded with solid propellant; an ignition system complete with electromechanical safe and arm device, initiator, and load ignitor; a movable nozzle; raceway bracketry; instrumentation; and the necessary integration hardware. Structurally, a SRM is configured with a forward rocket motor segment, two center rocket motor segments, and one aft rocket motor segment. A field joint is that portion of the SRM segment that is assembled/stacked at KSC to create the finished SRM. These field joints are susceptible to environmental conditions and were not qualification tested to the full range of environments. This led to a lack of complete understanding of the joint design limits. | |
| language | English | |
| title | NASA-LLIS-0175 | num |
| title | Lessons Learned - Solid Rocket Motor (SRM) Field Joints | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1992 | |
| contenttype | fulltext | |
| subject keywords | Environment | |
| subject keywords | Flight Equipment | |
| subject keywords | Test & Verification |