两刚性直尺间圆形射弹的动力学研究DYNAMIC ANALYSIS OF CIRCULAR PROJECTILES BETWEEN TWO RIGID CONSTRAINTS
李俊明,佟蕾
摘要(Abstract):
对2024年IYPT的题目“尺子加农炮”进行了研究,从转动惯量和几何关系等入手,建立了两把刚性尺子间圆形射弹的运动模型,给出了理论假设下系统的耦合运动方程。使用Tracker软件对圆形射弹的出射速度等参量进行了测量,定量探究了出射速度与相关参量的变化关系并进行了理论分析。在此基础上,利用Matlab对相应的实验探究进行了数值求解,将其与实验结果进行对比,验证了模型的正确性,并对理论与实验存在偏差的原因进行了分析。
关键词(KeyWords): IYPT;尺子加农炮;刚性直尺;圆形射弹
基金项目(Foundation): 国家级大学生创新项目(D202503171248431104);; 2025年辽宁省“兴辽英才计划”教学名师项目(XLYC2411095)
作者(Author): 李俊明,佟蕾
DOI: 10.27024/j.wlygc.2025.10.11.05
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