The Optimization and Analysis of Sandcastle Model

In order to get the best geometry of sand castle, in this paper, the energy loss method, iterative method and control variable method are used to analyze the stress of sand castle. Firstly, according to the law of sea water energy loss, the optimal three-dimensional geometric shape of sand castle is a round platform using the iterative method, the results show that the tilt angle of the round platform is 1.203 ~ 1.267 (RAD), and the time of sand castle maintenance is the longest when the sea water depth is 2.6 ~ 3.2cm. secondly, the optimal water to sand mixing ratio of sand castle is 1:12 by using the assignment method. Finally, the influence of rain erosion on the life of sand castle is considered, and some suggestions are put forward according to the analysis results.