对孔明灯上升过程建立动力学模型,分析得到影响用时的相关因素,从实验角度出发,合理选择制作材料,提出可兼顾多重影响因素的等效合力法选择燃料,给出形状优化方案并验证,以达到缩短孔明灯从点燃起上升至2.5 m竖直高度用时的目的.
The dynamics of lantern' s rising is analyzed. The factors which influence the rising time in the experiments are identified and the corresponding influence are investigated. It is found necessary to choose the correct materials and candles. We explore the influence of multiple factors and propose the equivalent-force method for the candle choosing. Finally, we give the shape-optimizing program and demonstrate the experimental results in which the time of the lantern from floor to 2.5m vertical height after being lighted up is shortened.