切削木屑卷曲形态控制的物理探究
张媛媛 1 ,王强 1* ,童逊 2 ,王韬宇 2
1.扬州大学 物理科学与技术学院,江苏 扬州 225009;2.扬州中学,江苏 扬州 225009
Physical Research on Shape Control of Cutting Sawdust Curling
ZHANG Yuanyuan 1 ,WANG Qiang 1* ,TONG Xun 2 ,WANG Taoyu 2
摘要
纵向切削可以形成三种形态的木屑,即发条状切屑、板状切屑和螺旋状切屑。文章结合形变的基本规律,采用梁弯曲模型分析了发条状切屑的形成机制;基于运动合成与分解的基本原理,运用切应力模型解释了螺旋状切屑形成的原因。研究内容源于生产生活中的真实物理问题,其研究方法有利于突破大学物理教学中“囿于书本,桎于课堂”的思维定式,可以为物理专业大学生科创训练提供有价值的参考案例。
关键词:
木屑卷曲
梁弯曲模型
切应力模型
大学物理
大学生科创
Abstract:
Three forms of sawdust can be formed by longitudinal cutting,including ribbon-shaped chip,plate-shaped chip and spiral chip.Based on the basic law of deformation,the forming mechanism of the ribbon-shaped chip is analyzed by using the beam bending model.Based on the principle of motion synthesis and decomposition,the shear stress model is used to explain the formation of spiral chip.The research content originates from the physical problems in production and life,and its research method is conducive to breaking through the influence of the thinking set in the teaching and learning of college physics,which is bounded by books and classroom.It can also provide valuable references for the scientific innovation training of college students majored in physics.
Key words:
sawdust curling
beam bending mode
shear stress model
college physics
scientific innovation of college students
发布日期: 2023-10-25
引用本文:
张媛媛 , 王 强 , 童 逊 , 王韬宇 .
切削木屑卷曲形态控制的物理探究
[J]. 大学物理实验, 2023, 36(5): 34-38.
ZHANG Yuanyuan , WANG Qiang , TONG Xun , WANG Taoyu.
Physical Research on Shape Control of Cutting Sawdust Curling
. Physical Experiment of College, 2023, 36(5): 34-38.
链接本文:
http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2023.05.008
或
http://dawushiyan.jlict.edu.cn/CN/Y2023/V36/I5/34
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