S1-1 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation SECTION 1 OVERVIEW

S1-2 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation

S1-3 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation COURSE OBJECTIVES n Learn the basic features in MSC.Nastran u Data structure u Element library u Linear static, normal modes, and buckling analyses n Learn the basic functionalities in MSC.Patran u Build finite element models (pre-processing) u Evaluate analysis results (post-processing) n Become familiar at solving engineering problems in an integrated Patran/Nastran environment through hands-on training u Students will work through a number of workshop problems in class with assistance from the instructor u Simple workshop problems designed to introduce basic concepts u Real-world workshop problems designed to lead the students through engineering problems from beginning to end

S1-4 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation WHAT IS MSC.NASTRAN? n MSC.Nastran is a general-purpose finite element analysis program capable of solving a wide variety of engineering problems including: u Linear static analysis u Static analysis with geometric and material nonlinearity u Transient analysis with geometric and material nonlinearity u Normal modes analysis u Buckling analysis u Direct and modal complex eigenvalue analysis u Direct and modal frequency analysis (including random analysis) u Direct and modal transient analysis (including response spectrum analysis)

S1-5 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation WHAT IS MSC.NASTRAN? (CONT.) n MSC.Nastran Capabilities (Cont.) u Linear cyclic symmetry analysis (including static, normal modes, buckling, and direct frequency response) u Linear and nonlinear steady-state heat transfer u Linear and nonlinear transient heat transfer u Aeroelasticity u Substructure analysis (superelements) u Design sensitivity and optimization u Acoustics u Composite material analysis u P-element analysis u Rotor Dynamics

S1-6 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation WHAT IS MSC.NASTRAN? (CONT.) n MSC.Nastran is u Extensively documented (including online encyclopedia) u Extensively tested u Continually enhanced with new capabilities u Highly efficient using modern numerical analysis techniques u Used extensively by aerospace, automotive, energy, biomedical, civil, and other industries.

S1-7 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation WHAT IS MSC.PATRAN? n MSC.Patran is a CAE pre and post processing software package. It consists of the following major components: u User-Friendly Graphical User Interface u Powerful Geometry Import, Export, and Creation u Robust Meshing Algorithms u Fast Results Visualization and Reporting u Extensive Analysis Code Preferences

S1-8 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation WORKFLOW IN MSC.PATRAN The Main Menu 2 - Import Geometry 1 - Select Analysis Code 2 - or Build Geometry 3 - Create Analysis Model 5 - Evaluate and Publish Analysis Results 4 - Perform the Analysis

S1-9 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation SOLVING A TYPICAL ENGINEERING PROBLEM n The following case study demonstrates how to use MSC.Patran and MSC.Nastran in a typical engineering application

S1-10 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation CASE STUDY: LANDING GEAR STRUT n The design team has created a nose landing gear strut design for the new fighter jet. Determine if the landing gear strut has been designed properly to withstand the landing load.

S1-11 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation CASE STUDY: LANDING GEAR STRUT n Design Specifications u Material: Steel l E = 30 x 10 6 psi = 0.3 u Landing load = 7,080 lb 7,080 LB

S1-12 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 1 - CREATE DB AND SET ANALYSIS PREFERENCE n Open a new database in MSC.Patran n Select MSC.Nastran and Structural Analysis for this case study

S1-13 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 2 - IMPORT OR BUILD GEOMETRY n The user can import or build geometry in MSC.Patran: u Import geometry models from CAD systems: l CATIA l Pro/ENGINEER l Unigraphics l EUCLID 3 l I-DEAS u Import geometry models in standard formats: l STEP l Parasolid xmt l ACIS l IGES l STL l VDA u Build the geometry directly in MSC.Patran

S1-14 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 2 - IMPORT OR BUILD GEOMETRY (CONT.) n For this case study, the landing gear strut geometry model is available as a parasolid.xmt file n Import this model directly into MSC.Patran

S1-15 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 2 - IMPORT OR BUILD GEOMETRY (CONT.) Import the landing gear strut geometry

S1-16 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 2 - IMPORT OR BUILD GEOMETRY (CONT.) n The landing gear strut geometry is imported

S1-17 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 3 - CREATE ANALYSIS MODEL n Next create the analysis model u Create a finite element mesh u Apply boundary condition u Apply loading u Create material properties u Create element properties

S1-18 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 3 - CREATE ANALYSIS MODEL (CONT.) Create the finite element mesh

S1-19 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 3 - CREATE ANALYSIS MODEL (CONT.) Constrain the hub cylinder at the bottom of the strut

S1-20 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 3 - CREATE ANALYSIS MODEL (CONT.) Apply 7,080 lb to the upper face of the strut

S1-21 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 3 - CREATE ANALYSIS MODEL (CONT.) Define a material property for the landing gear strut

S1-22 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 3 - CREATE ANALYSIS MODEL (CONT.) Create an element property for the landing gear strut

S1-23 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 4 - PERFORM THE ANALYSIS Submit the model to MSC.Nastran to perform a linear static analysis

S1-24 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 5 - EVALUATE ANALYSIS RESULTS Review.f06 file 1. Verify that the analysis has completed successfully. 2. Review warning messages. 3. Review analysis results.

S1-25 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 5 - EVALUATE ANALYSIS RESULTS Read the analysis results into MSC.Patran

S1-26 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 5 - EVALUATE ANALYSIS RESULTS (Cont.) Plot displacements and stresses

S1-27 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 5 - PUBLISH ANALYSIS RESULTS Publish a stress summary report

S1-28 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation STEP 5 - PUBLISH ANALYSIS RESULTS (CONT.) Under File/Images or Results/Create/Quick Plot: Create static, animated, and vrml images for reports and presentations

S1-29 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation SUMMARY OF PATRAN-NASTRAN WORKFLOW MSC.Patran MSC.Nastran Pre-Processing n Import/create geometry n Create finite element mesh n Apply boundary condition n Apply loads n Create material properties n Create element properties n Submit model to solver Solver n Solve for displacements Compute strains n Compute stresses Post-Processing n Deformation plots n Stress fringe plots n Reports

S1-30 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation COMPANY OVERVIEW n The MSC.Software Corporation has been supplying sophisticated computer-aided engineering (CAE) tools since 1963 n MSC.Software is the developer, distributor, and supporter of the most complete and widely-used structural analysis program in the world, MSC.Nastran n MSC.Software also is the developer, distributor, and supporter of the state of the art CAE analysis program, MSC.Patran n MSC.Patran is an open architecture pre and post processor for all major finite element analysis (FEA) software, including MSC.Nastran and MSC.Marc

S1-31 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation WHERE TO GO FOR HELP n The MSC Technical Support Hotline is staffed Monday through Friday 8:00 a.m. to 5:00 p.m. n support: u u n Website support at

S1-32 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation WHERE TO GET TRAINING n MSC.Nastran and MSC.Patran seminars are held worldwide u Locations, dates, and descriptions of all scheduled classes are found at u MSC also conducts cost-effective in-house seminars at clients facilities. These seminars can be tailored to meet clients specific needs. u Contact the MSC Institute at

S1-33 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation MSC.PATRAN SEMINARS n Following MSC.Patran seminars are offered u PAT301 - Introduction to MSC.Patran u PAT302 - MSC.Patran for Advanced Users u PAT304 - Introduction to MSC.Patran Command Language (PCL) u PAT312 - Thermal Analysis Using MSC.Patran Thermal u PAT318 - Durability and Fatigue Life Analysis Using MSC.Fatigue u PAT325 - Introduction to Laminate Modeler u PAT328 - New Features in MSC.Patran

S1-34 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation MSC.NASTRAN SEMINARS n Following MSC.Nastran seminars are offered u NAS101 - Basic MSC.Nastran Linear Static and Normal Modes Analysis u NAS102 - MSC.Nastran Dynamic Analysis u NAS103 - MSC.Nastran Nonlinear Analysis u NAS104 - MSC.Nastran Thermal Analysis u NAS105 - Practical Finite Element Modeling Techniques Using MSC.Nastran u NAS106 - MSC.Nastran Superelement Analysis u NAS107 - Design Sensitivity and Optimization in MSC.Nastran u NAS108 - New Capabilities in MSC.Nastran u NAS110 - DMAP and Database Applications in MSC.Nastran u NAS111 - MSC.Nastran Aeroelastic Analysis u NAS113 - Analysis of Composite Materials with MSC.Nastran u NAS115 - Fluid-Structure Analysis in MSC.Nastran u NAS116 - Practical Dynamic Analysis with MSC.Nastran u NAS120 - Linear Static and Normal Modes Analysis Using MSC.Nastran and MSC.Patran u NAS122 - Dynamic Analysis Using MSC.Patran and MSC.Nastran u NAS123 - MSC.Nastran Implicit Nonlinear (SOL600) Analysis u NAS125 - Stochastic Simulation Using MSC.Robust Design

S1-35 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation EXERCISE Perform Workshop 1 Landing Gear Strut Analysis in your exercise workbook.

S1-36 NAS120, Section 1, May 2006 Copyright 2006 MSC.Software Corporation