SPH-BASED NUMERICAL ANALYSIS FOR GRANULAR MATERIAL MODEL OF SAND AND REGOLITH

被引：1

作者：

马超 ^{[1
]}

吴铁鹰 ^{[2
]}

机构：

[1] Shanghai Aircraft Design and Research Institute

[2] College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics

来源：

TransactionsofNanjingUniversityofAeronautics&Astronautics | 2013年 / 30卷 / 01期

关键词：

sand model; regolith model; simulation; smoothed particle hydrodynamics; penetrate experiment;

D O I：

10.16356/j.1005-1120.2013.01.003

中图分类号：

P184.5 [月球表面物理及观测方法];

学科分类号：

070401 ;

摘要：

The development of an innovative drilling system makes it necessary to model the material of extra-terrestrial soil , i.e.regolith or lunar soil.And then the drilling process is numerically simulated.Since real regolith is very scarce and costly , sand properties are investigated by means of experiments and sand model is constructed with the capability of partly reflecting these properties.With the use of smooth particle hydrodynamics ( SPH ) method in LS-DYNA , data analysis and modeling process are presented to reach the following achievements :( 1 ) Develop ageneral model approach of sand using SPH method ;( 2 ) Compare SPH results with experimental data to validate it ;( 3 ) Adapt the sand model to lunar soil while fitting the simulation of dual-reciprocating drilling ( DRD ) process.

引用

页码：39 / 45

页数：7

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