Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback
    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    HIRENASD Beam FEM

    Metadata Updated: February 22, 2025

    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. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date February 22, 2025
    Metadata Updated Date February 22, 2025
    Data Update Frequency irregular

    Metadata Source

    Harvested from nasa test json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 22, 2025
    Metadata Updated Date February 22, 2025
    Publisher Dashlink
    Maintainer
    Identifier DASHLINK_425
    Data First Published 2011-07-05
    Data Last Modified 2025-02-19
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id e1c75bb1-67a4-4d32-a910-790769b55a7a
    Harvest Source Id a73e0c30-4684-40ef-908e-d22e9e9e5f86
    Harvest Source Title nasa test json
    Homepage URL https://c3.nasa.gov/dashlink/resources/425/
    Program Code 026:029
    Source Datajson Identifier True
    Source Hash 630eddaae61ad05f3ca297cef56f00b1edd0b381bf9da4bc9403216a7178f5f2
    Source Schema Version 1.1

    Didn't find what you're looking for? Suggest a dataset here.