An aerodynamic database for the crew access arm during deployment is generated. While initial attempts used data derived from wind tunnel testing, limitations lead to the use of computational fluid dynamics to improve analysis. This computational data compared favorably to the experimental data increasing confidence in both. Further analysis lead to simplification showing the ability to build the database with a single relative wind variable which takes into account both arm deployment angle and wind direction. Eventually geometric simplifications and conservative results lead to the use of simulations of the CAA alone to build the database.Finally these static conditions are then compared to a dynamic simulation where the CAA rotates into position to test the quasi-steady state assumptions used to generate the database. The dynamic case showed an increase in the moment of interest but within acceptable bounds for now.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Ground Wind Loads on the Space Launch System’s Mobile Launcher Crew Access Arm


    Contributors:

    Conference:

    AIAA Science and Technology (SciTech) Forum and Exposition 2023 ; 2023 ; National Harbor, MD, US


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Ground Wind Loads on the Space Launch System Mobile Launcher Crew Access Arm

    Wignall, Thomas J. / Collins, Jesse G. / Pomeroy, Brent W. et al. | TIBKAT | 2023


    Ground Wind Loads on the Space Launch System Mobile Launcher Crew Access Arm

    Wignall, Thomas J. / Collins, Jesse G. / Pomeroy, Brent W. et al. | AIAA | 2023