摘要
针对弹性力学课程抽象困难,学生普遍缺乏兴趣的现状。本文试图通过生活中常见的现象来培养学生对力学课程的兴趣。以老鼠打洞行为为例,阐述了基因对老鼠打洞行为的控制作用。将老鼠打洞问题简化为轴对称力学模型,给出了其基本方程、边界条件,同时还必须考虑岩土材料的塑性屈服,通过数值方法求解各应力分量随洞径的变化关系,最后指出老鼠打洞力学问题对于地质钻探或桩基施工等实际工程问题的启示。论文生动形象的展示了生活中处处皆学问,引导学生热爱生活,从生活点滴中培养纯粹的科研学习热情。
In view of the current situation that students generally lack of interest in studying elastic mechanics due to the abstraction and difficulty of these courses.This paper tries to cultivate students’ interest in mechanics courses through common phenomena in life.Taking the burrowing behavior of prairie voles as an example,the determining of genes on the burrowing behavior of prairie voles is illustrated.The problem of rat drilling is simplified to an axisymmetric mechanical model,and the basic equations and boundary conditions are given.Moreover,the plastic yield of rock and soil materials is considered.The variation of the stress components with hole diameter is solved numerically.Finally,the enlightenment of rat drilling mechanics to practical engineering problems such as geological drilling and pile foundation construction is pointed out.This paper vividly shows that there is knowledge everywhere in life,guiding students to love life and cultivate pure enthusiasm for learning and scientific research from every bit of life.
作者
吴道勇
覃超
江兴元
WU Daoyong;QIN Chao;JIANG Xingyuan(Key Laboratory of Karst Georesources and Environment,Ministry of Education,Guizhou University,Guiyang,Guizhou 550025;College of Resource and Environment Engineering,Guizhou University,Guiyang,Guizhou 550025)
出处
《科教导刊》
2021年第28期59-61,共3页
The Guide Of Science & Education
基金
国家自然科学基金项目[42002280]
贵州大学线上线下混合式课程建设项目[2020-5]。
关键词
老鼠打洞
力学模型
屈服准则
寓教于乐
burrowing behavior
mechanical model
yield criterion
edutainment
