Patran To Nastran Workflow Overview
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WORKSHOP Pre-work LANDING GEAR STRUT ANALYSIS
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-1
● Workshop Objectives ● Learn the typical workflow of a finite element analysis using
Patran and MD Nastran. ● Perform a start to finish finite element analysis of a solid model.
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-2
● Problem Description ● A landing gear strut has been designed for a new fighter jet.
Determine if the landing gear strut has been designed properly to withstand the landing load.
● E = 30 x 106 psi ● ν =0.3 ● Landing Load = 7,080 lb
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-3
● Suggested Exercise Steps 1. Create a new database and name it strut.db 2. Import the strut geometry strut.xmt 3. Mesh the strut to create solid elements with global edge length = 0.5
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-4
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-5
● Suggested Exercise Steps 4. Fix the cylindrical hole at the bottom of the strut 5. Apply a total load of 7080 lb in the negative Y direction to the circular surface at the top of the strut
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-6
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-7
● Suggested Exercise Steps 6. Create an isotropic material with elastic modulus = 30e6 and Poisson's ratio = 0.3 7. Create a physical property, applying your isotropic material to the entire solid
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-8
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-9
● Suggested Exercise Steps 8. Run a linear static analysis 9. Attach the results
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-10
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-11
● Suggested Exercise Steps 10. Plot the Von Mises stress on the deformed shape
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-12
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-13
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-1
● Workshop Objectives ● Learn the typical workflow of a finite element analysis using
Patran and MD Nastran. ● Perform a start to finish finite element analysis of a solid model.
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-2
● Problem Description ● A landing gear strut has been designed for a new fighter jet.
Determine if the landing gear strut has been designed properly to withstand the landing load.
● E = 30 x 106 psi ● ν =0.3 ● Landing Load = 7,080 lb
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-3
● Suggested Exercise Steps 1. Create a new database and name it strut.db 2. Import the strut geometry strut.xmt 3. Mesh the strut to create solid elements with global edge length = 0.5
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-4
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-5
● Suggested Exercise Steps 4. Fix the cylindrical hole at the bottom of the strut 5. Apply a total load of 7080 lb in the negative Y direction to the circular surface at the top of the strut
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-6
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-7
● Suggested Exercise Steps 6. Create an isotropic material with elastic modulus = 30e6 and Poisson's ratio = 0.3 7. Create a physical property, applying your isotropic material to the entire solid
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-8
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-9
● Suggested Exercise Steps 8. Run a linear static analysis 9. Attach the results
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-10
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-11
● Suggested Exercise Steps 10. Plot the Von Mises stress on the deformed shape
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
PW-12
NAS120, Pre-work, August 2009 Copyright 2009 MSC.Software Corporation
Video quality optimized for viewing at zoom = 100%
PW-13
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