An Excavation System Model has been written to simulate the collection and transportation of regolith on the Moon. The calculations in this model include an estimation of the forces on the digging tool as a result of excavation into the regolith. Verification testing has been performed and the forces recorded from this testing were compared to the calculated theoretical data. A prototype lunar vehicle built at the NASA Johnson Space Center (JSC) was tested with a bulldozer type blade developed at the NASA Kennedy Space Center (KSC) attached to the front. This is the initial correlation of actual field test data to the blade forces calculated by the Excavation System Model and the test data followed similar trends with the predicted values. This testing occurred in soils developed at the NASA Glenn Research Center (GRC) which are a mixture of different types of sands and whose soil properties have been well characterized. Three separate analytical models are compared to the test data.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Comparison of ISRU Excavation System Model Blade Force Methodology and Experimental Results



    Publication date :

    2010-03-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Comparison of ISRU Excavation System Model Blade Force Methodology and Experimental Results

    Gallo, Christopher / Wilkinson, R / Mueller, Robert et al. | AIAA | 2009


    Comparison of ISRU Excavation System Model Blade Force Methodology and Experimental Results

    Gallo, C. / Wilkinson, R. / Mueller, R. et al. | British Library Conference Proceedings | 2009



    A Comparison Between The NORCAT Rover Test Results and the ISRU Excavation System Model Predictions Results

    Gallo, Christopher A. / Agui, Juan H. / Creager, Colin M. et al. | NTRS | 2012


    A Comparison Between the NORCAT Rover Test Results and the ISRU Excavation System Model Predictions Results

    Gallo, C. / Agui, J. / Creager, C. et al. | British Library Conference Proceedings | 2012