211 3次元個別要素法によるグローサ地盤間の相互作用解析

概要

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In design of tracked vehicles that run on non-pavement road or soft ground, it is important to analyze the interaction between a machine and soil. In vehicles with crawler such as bulldozer and loading shovel, for the decrease of examination frequency and the improvement of performance the interaction analysis is done. When the crawler vehicle runs, two or more teeth stick in the soil, which causes various factors such as compression and shear action and so on. These considered, it takes huge time to analyze the behavior of the soil and the crawler. So, up to now, the model with high analytical accuracy has not been established. Recently, the technique of distinct element method (DEM) was invented as computer technology develops. DEM is the technique that, regarding the soil as a large particle, we examine the motion of each particle based on the motion equations. As a result, analytical time was greatly shortened, and we came to represent the behavior of the soil. However, we could not make high accurate modeling of the soil and the crawler yet. So, I aim at further shortening of analytical time to make the higher accurate model. Therefore, I work on parallel of computer handling and shortening of analytical area of the soil. Success of this research has possibility to decide the crawler's shape which has the highest thrust.
一般社団法人日本機械学会の論文
2011-09-05