Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 23, 2018 - November 25, 2018
Numerical simulation techniques for the prediction of the dynamic behavior of snow can be exceedingly effective tool for developing snow blowers and snow tractors. However, since the snow characteristics are widely changed due to climate, snowfall density and geographical features, it is needed that new snow model which can represent the difference of dynamic behavior influenced by the quality of snow. In this study we try to model such snow character on the basis of Discrete Element Method (DEM). In addition to conventional DEM, we developed a new model to simulate compression behavior of snow. The diameter of the compressed particle is reduced with compression force loaded on the particle, and the modulus of elasticity is changed depending on the amount of compression. As examples, the numerical simulations are carried out for simulating the actual load test of snow by a rectangular plate. The numerical simulation results has indicated the possibility that the new model can simulate the dynamic behavior of snow.
