Aero Workshop18

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NAS 110, Workshop 18, December 2011

Copyright© 2011 MSC.Software Corporation WS18 - 1

WORKSHOP 18

Printing AERO Coordinates





• Workshop Objectives

– Create alter to print

• Aero element corner node locations

• Aero element center locations

– Print the following datablocks

• AEGRID Basic grid point definition tables for the aerodynamic model.

Output by APD as BGPDT

• AEBGPDT Family of aerodynamic basic grid point definition tables. Output

by APD.

• Software Version

– MSC Nastran 2012

• Files Required

– wkshop18.dat

– wk18.alt





• Suggested Steps

1. Find out where the AEGRID, and AEBGPDT are being created• Hint 1: AERO0 Module

• Hint 2: Find out where they come out or available. Usually, there are multiple

places that can be used





Model Details

• Idealization of the FSW Configuration

• Half model – Right-hand side modeled

– Detailed shown on left-hand side for clarity





Model Details (cont.)

• AEROS – Basic parameters for static aero

$ ACSID RCSID REFC REFB REFS SYMXZ SYMXY

AEROS 1 100 10.0 40.0 200.0 1





Model Details (cont.)

• Coordinate Systems

– Aerodynamic coordinate system (ACSID=1)

– Reference coordinate system for rigid body (RCSID = 100)





Model Details (cont.)• The following alter (wk18.alt) is provided

– Insert the proper Compile statement for the appropriate SubDMAP

– Insert the proper alter statement

$

$ DMAP alter to write out aero element corner node locations

$

message //'NDDL format of box corner locations in CID 0'

tabprt aegrid/////1 $ NDDL Format of data

$

message //'Nicely formatted box corner locations in CID 0'

tabprt aegrid//'bgpdt' $ Column format of data

$

message //'NDDL format of box center locations in CID 0'

tabprt aebgpdt/////1 $ NDDL formatted print

$

message //'Nicely formatted box center locations in CID 0'

tabprt aebgpdt//'bgpdt' $ Column format of data

$endalter $





SOLUTION





DMAP For print AEGRID and AEBGPDT

compile aero0 souin=mscsou nolist noref

$$ DMAP alter to write out aero element corner node locations

$

alter 'aebgpdt.*aegrid' $ v2012

$alter 'return'(2,-1) $ v2012

$

message //'NDDL format of box corner locations in CID 0'

tabprt aegrid/////1 $ NDDL Format of data

$

message //'Nicely formatted box corner locations in CID 0'

tabprt aegrid//'bgpdt' $ Column format of data

$

message //'NDDL format of box center locations in CID 0'

tabprt aebgpdt/////1 $ NDDL formatted print

$

message //'Nicely formatted box center locations in CID 0'tabprt aebgpdt//'bgpdt' $ Column format of data

$

endalter $





AEGRID Output (Box Corner)• NDDL Format

…..

• Nice Format





AEBGPDT Output (Box Center)

• NDDL Format

• Nice Format

Aero Workshop18

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