The NASA Orion Multi-Purpose Crew Vehicle (MPCV) is being designed to replace the Space Shuttle as the main manned spacecraft for the agency. Based on the predicted environments in the Service Module avionics ring, an isolation system was deemed necessary to protect the avionics packages carried by the spacecraft. Impact, sinusoidal, and random vibration testing were conducted on a prototype Orion Service Module avionics pallet in March 2010 at the NASA Glenn Research Center Structural Dynamics Laboratory (SDL). The pallet design utilized wire rope isolators to reduce the vibration levels seen by the avionics packages. The current pallet design utilizes the same wire rope isolators (M6-120-10) that were tested in March 2010. In an effort to save cost and schedule, the Finite Element Models of the prototype pallet tested in March 2010 were correlated. Frequency Response Function (FRF) comparisons, mode shape and frequency were all part of the correlation process. The non-linear behavior and the modeling the wire rope isolators proved to be the most difficult part of the correlation process. The correlated models of the wire rope isolators were taken from the prototype design and integrated into the current design for future frequency response analysis and component environment specification.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Orion MPCV Service Module Avionics Ring Pallet Testing, Correlation, and Analysis


    Contributors:
    L. Staab (author) / J. Akers (author) / V. Suarez (author) / T. Jones (author)

    Publication date :

    2012


    Size :

    58 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Orion MPCV Service Module Avionics Ring Pallet Testing, Correlation, and Analysis

    Staab, Lucas / Akers, James / Suarez, Vicente et al. | NTRS | 2012


    Orion MPCV Nonlinear Dynamics Uncertainty

    Adam Johnson / Paul Bremner / Matt Griebel et al. | NTRS


    Orion MPCV E-STA Nonlinear Correlation for NESC

    Matt Griebel / Adam Johnson / Brent Erickson et al. | NTRS | 2019