英文版patran实例教程hole_Plate

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Software Version
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MD Patran R2 MD Nastran R2
PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
WS2-2
Key Concepts and Steps:
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-10
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Step 4. Create a Displacement at right End(Cont.)
a. Click under Select Nodes and select the right node as shown in the figure. b. Click Add. c. Click OK. d. Click Apply.
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
WS2-4
Step 2. Create Geometry of the Plate
a. Geometry: Create / Surface / XYZ b. Click under Vector Coordinates List and enter <2 1.6 0>. c. Click Apply.
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Create a database named cantilevered_plate.db and specify the model preferences: a. File / New b. Enter Hole_plate as the file name. c. Click OK. d. Choose Default Tolerance. e. Select MD Nastran as the Analysis Code. f. Select Structural as the Analysis Type. g. Click OK.
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-12
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Step 5. Create Constraints on the Plate (Fixed_1 Cont.)
a. Click under Select Nodes b. Select the node shown in the figure c. Click Add. d. Click OK. e. Click Apply.
HOLE PLATE
PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
WS2-1
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Workshop Objectives
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Model a hole plate, using shell elements, subjected to a displacement loading. The shell elements will undergo plane strain. MD Patran and MD Nastran will be used to create or analyze the linear static model.
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
WS2-7
Step 2. Create Geometry of the Plate(Cont.)
a. Geometry: Delete / Surface b. Input Surface 3 c. Click Apply
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Problem Description
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Display the component of stress in the axial direction (direction along the length of the plate structure) and the deformed shape of the plate model. Plate material: Aluminum with E = 10 x 106 pa and n =0.3 Load on displacement = 0.2 mm
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-14
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
WS2-5
Step 2. Create Geometry of the Plate(Cont.)
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Geometry: Create / Curve / 2D Circle Input the radius 0.3 Input Center point [1 0.8 0] Click Apply
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-13
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Step 5. Create Constraints on the Plate(Fixed_2)
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Constrain the hole plate, fixing five degrees of freedom at other left nodes: a. Loads / BCs: Create / Displacements / Nodal b. Click under New Set Name, and enter fix_2. c. Select Input Data. d. Enter <0 , , 0> for Translations <T1 T2 T3 > and <0 0 0> for Rotations <R1 R2 R3>. e. Click OK. f. Click on Select Application Region. g. Select FEM on Geometry Filter.
● Database: create a new database with Analysis Code = MD Nastran and ● ● ● ●
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Analysis Type = Structural Geometry: create a geometric surface to represent the hole plate Elements: mesh the surface with plate elements Loads/BCs: constrain one end of the plate model, and apply the displacement load to the other end of the plate model. Materials: specify an isotropic material for Aluminum Properties: create a 2D shell/plate property Analysis: Solution Type = Nastran Linear Static, Solution Sequence = 101, Method = Full Run Analysis: access analysis results by attaching the XDB file to database
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
WS2-8
Step 3. Meshing with Quad4 Elements
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a. Elements: Create / Mesh / Surface b. Select Elem Shape: Quad Mesher: Paver Topology: Quad4 c. Click on Surface List and select Surface 2. d. Input global Length : 0.1 e. Click Apply.
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporationห้องสมุดไป่ตู้
WS2-9
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Step 4. Create a Displacement at right End
A displacement will be applied to a group of nodes at the end of the hole plate: a. Loads / BCs: Create / Displacement / Nodal b. Click under New Set Name and enter displacemen. c. Select Input Data. d. Enter < 0.2 , , >on Translations <T1 T2 T3>. e. Click OK. f. Click Select Application Region. g. Select FEM on Geometry Filter.
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
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WS2-11
Step 5. Create Constraints on the Plate(Fixed_1)
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Constrain the hole plate, fixing all six degrees of freedom at left down node: a. Loads / BCs: Create / Displacements / Nodal b. Click under New Set Name, and enter fix_1. c. Select Input Data. d. Enter <0 0 0> for Translations <T1 T2 T3 > and Rotations <R1 R2 R3>. e. Click OK. f. Click on Select Application Region. g. Select FEM on Geometry Filter.
● Results: plot Max principal of stress and displacement results
PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
WS2-3
Step 1. Create a Database
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-6
Step 2. Create Geometry of the Plate(Cont.)
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Geometry: Edit / Surface / Break Select ‘Delete Original Surfaces’ Input Surface 1 Input Curve 1 Click Apply