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Metadata Updated: December 6, 2023

This contains attempts to create BEAM FEM model.

I have started a Blog to discuss this... please put your comments there and I will attempt to keep everything updated. Correspondence between A.B. and CDW is provided to assist in developing NASTRAN Beam FEM
(through July 1)(PDF)

The original data provided by Alexander is shown in model_input-extract.txt

Additional files loaded July 21, 2011: Comparison of Wing Masses, and Lengths, and Mass calculated from provided densities, and lengths Comparison of Model Masses and frequencies Emails dealing with offsets for bending and center of mass (between Proctor and Wieseman) Spreadsheet that contains element beam properties used for debugging One element beam model to check beam stiffnesses Email correspondence as of July 28, 2011 - includes a cursory check of the bending and center of mass locations.

X1,X2,X3 Inertias/Kappa Mode 1 Freq, Hz Mode 2 Freq, Hz File name (ms103_beam_)

1,0,0 modified* 26.3785483.69360 100_modi_ccs_o1_k_nsm1_nm1

1,0,0 modified*/Beam properties modified 26.3785583.69344 100_modi_ccs_o1_k2_nsm1_nm1

cosa,0,-sina as provided 26.3794983.69533 ca_0_nsa_ccs_o1_k_nsm1_nm1

cosa,0,-sina as provided 26.3794983.69533 ca_0_nsa_ccs_o1_k_nsm1_nm1

Below are frequencies with different permutations of X1,X2,X3 definitions on CBEAM card A) - 1,0,0 or B) ca_0_nsa = cos(alpha),0,-sin(alpha) or C)nca_0_sa = -cos(alpha),0,sin(alpha) on the beam card coordinate system (CCS) is converted from original O1 indicates that offsets W1-W3 were included between the node and the shear center nsm1 = beam density is unchanged and includes the non-structural mass nsm2 = non-structural mass is separated from the beam mass density nm = calculation of offset N1,N2 for beginning and end of each beam segment is performed - different ways depending on the index modi = inertias provided by Boucke were modified by the alpha.
k = kappa(K1,K2) were included in the model - values provided by Boucke (A.B.) k2 = kappa(K1/K2) modified along with beam properties per equations provided by A.B.

Description 1st mode2nd mode Boucke provided frequencies25.3387954778.63642299 100_modi_ccs_o1_k2_nsm1_nm126.3785583.69344

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date November 12, 2020
Metadata Updated Date December 6, 2023
Data Update Frequency irregular

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 6, 2023
Publisher Dashlink
Identifier DASHLINK_425
Data First Published 2011-07-05
Data Last Modified 2020-01-29
Public Access Level public
Data Update Frequency irregular
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 5f117ce7-0a77-42f2-aac9-ad99fabc6e21
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Program Code 026:029
Source Datajson Identifier True
Source Hash 40f31343d20d4bada42de3b51a5782ea793e7068d4a92875ba968904016c6c88
Source Schema Version 1.1

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