NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Ares I-X Upper Stage Simulator Compartment Pressure Comparisons During AscentPredictions of internal compartment pressures are necessary in the design of interstage regions, systems tunnels, and protuberance covers of launch vehicles to assess potential burst and crush loading of the structure. History has proven that unexpected differential pressure loads can lead to catastrophic failure. Pressures measured in the Upper Stage Simulator (USS) compartment of Ares I-X during flight were compared to post-flight analytical predictions using the CHCHVENT chamber-to-chamber venting analysis computer program. The measured pressures were enveloped by the analytical predictions for most of the first minute of flight but were outside of the predictions thereafter. This paper summarizes the venting system for the USS, discusses the probable reasons for the discrepancies between the measured and predicted pressures, and provides recommendations for future flight vehicles.
Document ID
20110008795
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Downs. William J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Kirchner, Robert D. (Jacobs Technologies Engineering Science Contract Group Huntsville, AL, United States)
McLachlan, Blair G. (NASA Ames Research Center Moffett Field, CA, United States)
Hand, Lawrence A. (NASA Ames Research Center Moffett Field, CA, United States)
Nelson, Stuart L. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 25, 2013
Publication Date
January 4, 2011
Subject Category
Launch Vehicles And Launch Operations
Report/Patent Number
M11-0176
M11-0139
Meeting Information
Meeting: 49th AIAA Aerospace Sciences Meeting
Location: Orlando, FL
Country: United States
Start Date: January 4, 2001
End Date: January 7, 2001
Distribution Limits
Public
Copyright
Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available