Numerical Tool for MOS Calculation with Different Mechanical/ Thermal Loads and Safety Factors Combinations

For aerospace vehicles, such as rockets and satellites that are subjected to high mechanical and thermal loading, it is necessary to better understand how the structure is influenced by these loads. Because reducing the mass of the structure while maintaining strength is a very important requirement...

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Bibliographic Details
Published in:INCAS bulletin 2021-06, Vol.13 (2), p.103-115
Main Authors: ONCESCU, Ionut-Cosmin, NASTASE, Mihaela
Format: Article
Language:English
Subjects:
Aerospace engineering
Aerospace industry
Aerospace safety
Aerospace vehicles
Aircraft
Composite materials
Finite element method
Load
load combination
Loads (forces)
Mathematical analysis
mechanical
metallic materials
Nastran
python
Rockets
safety factor
Safety factors
Satellites
space structures
thermal
Thermal analysis
Vehicles
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Summary:For aerospace vehicles, such as rockets and satellites that are subjected to high mechanical and thermal loading, it is necessary to better understand how the structure is influenced by these loads. Because reducing the mass of the structure while maintaining strength is a very important requirement, field-tested components will be subject to different SFs (safety factors) than those that are only subjected to FEA (Finite Element Analysis). Also to further reduce the magnitude of the load factors in the MOS (Margin of Safety) calculation, mechanical loads are considered to have a different safety factor than the thermal loads. This paper proposes a solution, a tool developed to calculate MOS for structural parts for different safety factors on mechanical and thermal loads, based on data obtained from FEA. The tool takes as input the results from the NASTRAN result files and creates one excel file with MOS for each component requested by the user and different types of summary.
ISSN:2066-8201
2247-4528
DOI:10.13111/2066-8201.2021.13.2.11