AbstractFor sake of striking a balance between the need of drilling efficiency and the constrains of power budget on the moon, the penetrations per revolution of drill bit are generally limited in the range around 0.1mm, and besides the geometric angle of the cutting blade need to be well designed. This paper introduces a simulation approach based on PFC3D (particle flow code 3 dimensions) for analyzing the cutting load feature on lunar rock simulant, which is derived from different geometric-angle blades with a small cutting depth. The mean values of the cutting force of five blades in the survey region (four on the boundary points and one on the center point) are selected as the macroscopic responses of model. The method of experimental design which includes Plackett-Burman (PB) design and central composite design (CCD) method is adopted in the matching procedure of microparameters in PFC model. Using the optimization method of enumeration, the optimum set of microparameters is acquired. Then, the experimental validation is implemented by using other twenty-five blades with different geometric angles, and the results from both simulations and laboratory tests give fair agreements. Additionally, the rock breaking process cut by different blades are quantified from simulation analysis. This research provides the theoretical support for the refinement of the rock cutting load prediction and the geometric design of cutting blade on the drill bit.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A PFC3D-based numerical simulation of cutting load for lunar rock simulant and experimental validation


    Beteiligte:
    Li, Peng (Autor:in) / Jiang, Shengyuan (Autor:in) / Tang, Dewei (Autor:in) / Xu, Bo (Autor:in)

    Erschienen in:

    Advances in Space Research ; 59 , 10 ; 2583-2599


    Erscheinungsdatum :

    2017-02-21


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Thermal simulation of drilling into lunar rock simulant by discrete element method

    Cui, Jinsheng / Hou, Xuyan / Wen, Guilin et al. | Elsevier | 2019


    NASA Lunar Regolith Simulant Program

    Edmunson, J. / Betts, W. / Rickman, D. et al. | NTRS | 2010



    Lunar Regolith Simulant User's Guide

    C. M. Schrader / D. L. Rickman / C. A. McLemore et al. | NTIS | 2010