摘要
针对实际教学过程中,学生对动量的作用点问题以及多刚体系统动量的计算反复出现逻辑错误,以三个案例为引题,进一步明晰动量概念,给出了常见关于刚体系动量求解误区。有助于提升动量求解的学习效果。
Based on the mechanical motion laws of objects,the teaching task of theoretical mechanics is that students can master the mechanical modeling and basic mechanical calculation of practical engineering problems,which is favourable to cultivate the logical thinking of students.As to the actual teaching process,It is easy for the students to make many logical errors in the calculation of momentum of multi rigid body system and action point of momentum.Three cases are used to further clarify the concept of momentum,and some common misunderstandings are pointed out.The present study shows that the learning effect of students has been greatly improved.
作者
尹宗军
苏蓉
胡玲凤
Yin Zongjun;Su Rong;Hu Lingfeng(School of Mechanical Engineering,Anhui Institute of Information Technology,Wuhu 241100,China)
出处
《六盘水师范学院学报》
2022年第2期97-103,共7页
Journal of Liupanshui Normal University
基金
安徽省省级质量工程项目“面向现代汽车产业的车辆专业项目化改革人才培养体系构建与研究”(2020jyxm0824),“面向机械类专业新生EPC能力培养的项目设计”(2020jyxm0821)
安徽省教育厅高校自然科学研究项目“基于VOF相界面追踪和自适应笛卡尔网格的非牛顿单液滴撞击动力学数值研究”(KJ2020A0826)。
关键词
多刚体系
质心
动量
multi rigid system
centroid
momentum
