發(fā)布時間：2018-02-12 03:12

  本文關鍵詞： 材料力學 實物演示 創(chuàng)新能力培養(yǎng) 開口薄壁桿失穩(wěn)　出處：《力學與實踐》2016年05期 　論文類型：期刊論文

【摘要】：通過課堂實物演示分析幫助學生掌握力學基本概念,基本規(guī)律,引導學生運用力學原理分析力學現象,解決力學問題,是在課堂教學環(huán)節(jié)培養(yǎng)學生創(chuàng)新能力的有效途徑.通過鋼卷尺演示分析開口薄壁桿件中心壓桿失穩(wěn),側立彎曲失穩(wěn)及水平布置彎曲失穩(wěn)現象.分析了鋼卷尺水平布置彎曲時,卷尺拉出長度相同的條件下,截面弧形凸出一側向上時失穩(wěn),凸出一側向下時不失穩(wěn)的現象.
[Abstract]:Through classroom demonstration and analysis to help students master the basic concepts and laws of mechanics, guide students to use mechanics principles to analyze mechanical phenomena and solve mechanical problems. It is an effective way to cultivate students' creative ability in classroom teaching link. Through demonstration of steel tape measure, the instability phenomena of center compression bar, lateral bending instability and horizontal arrangement bending instability of open thin-walled members are analyzed. When steel tape tape is arranged horizontally, bending is analyzed. Under the condition of the same drawing length of the tape measure, the stability of one side of section arc protruding is unstable when up, and the phenomenon of no instability when one side is protruded down.
【作者單位】： 哈爾濱工業(yè)大學航天學院;
【分類號】：O341-4;G642
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本文編號：1504656