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Development of FIAT-Based Parametric Thermal Protection System Mass Estimating Relationships for NASA's Multi-Mission Earth Entry ConceptPart of NASAs In-Space Propulsion Technology (ISPT) program is the development of the tradespace to support the design of a family of multi-mission Earth Entry Vehicles (MMEEV) to meet a wide range of mission requirements. An integrated tool called the Multi Mission System Analysis for Planetary Entry Descent and Landing or M-SAPE tool is being developed as part of Entry Vehicle Technology project under In-Space Technology program. The analysis and design of an Earth Entry Vehicle (EEV) is multidisciplinary in nature, requiring the application many disciplines. Part of M-SAPE's application required the development of parametric mass estimating relationships (MERs) to determine the vehicle's required Thermal Protection System (TPS) for safe Earth entry. For this analysis, the heat shield was assumed to be made of a constant thickness TPS. This resulting MERs will then e used to determine the pre-flight mass of the TPS. Two Mers have been developed for the vehicle forebaody. One MER was developed for PICA and the other consisting of Carbon Phenolic atop an Advanced Carbon-Carbon composition. For the the backshell, MERs have been developed for SIRCA, Acusil II, and LI-900. How these MERs were developed, the resulting equations, model limitations, and model accuracy are discussed in this poster.
Document ID
20140000205
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Sepka, Steven A. (Engineering Research and Consulting, Inc. Huntsville, AL, United States)
Zarchi, Kerry (NASA Ames Research Center Moffett Field, CA, United States)
Maddock, Robert W. (NASA Langley Research Center Hampton, VA, United States)
Samareh, Jamshid A. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
January 15, 2014
Publication Date
June 17, 2013
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
ARC-E-DAA-TN8306
Meeting Information
Meeting: International Planetary Probe Workshop
Location: San Jose, CA
Country: United States
Start Date: June 17, 2013
End Date: June 21, 2013
Sponsors: European Space Agency, NASA Headquarters, Jet Propulsion Lab., California Inst. of Tech., San Jose State Univ.
Funding Number(s)
CONTRACT_GRANT: NNA10DE12C
Distribution Limits
Public
Copyright
Public Use Permitted.

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