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Calculation of Dynamic Loads Due to Random Vibration Environments in Rocket Engine SystemsAn important part of rocket engine design is the calculation of random dynamic loads resulting from internal engine "self-induced" sources. These loads are random in nature and can greatly influence the weight of many engine components. Several methodologies for calculating random loads are discussed and then compared to test results using a dynamic testbed consisting of a 60K thrust engine. The engine was tested in a free-free condition with known random force inputs from shakers attached to three locations near the main noise sources on the engine. Accelerations and strains were measured at several critical locations on the engines and then compared to the analytical results using two different random response methodologies.
Document ID
20070031993
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Christensen, Eric R.
(Dynamic Concepts, Inc. Huntsville, AL, United States)
Brown, Andrew M.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Frady, Greg P.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Subject Category
Mechanical Engineering
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Structures, Structural Dynamics, and Materials Conference
Location: Honolulu, HI
Country: United States
Start Date: April 23, 2007
End Date: April 27, 2007
Distribution Limits
Public
Copyright
Public Use Permitted.
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