新技术新工艺
新技術新工藝
신기술신공예
NEW TECHNOLOGY & NEW PROCESS
2013年
11期
38-40
,共3页
扭转%外力偶矩%扭矩%大小及方向%截面法%圆轴
扭轉%外力偶矩%扭矩%大小及方嚮%截麵法%圓軸
뉴전%외력우구%뉴구%대소급방향%절면법%원축
torsion%external torque%torque%size and symbol%section observation method%circular shaft
对圆轴扭转时的扭矩大小及方向的正确判定非常重要,也是校核其强度及刚度的关键。扭矩的大小可由外力偶矩求得,即为所选取部分所有外力偶矩的代数和。介绍了几种关于扭矩方向的判定方法,除了最常用的右手螺旋法则外,还总结了其他几种判定方法,并做了详细的对比与分析。其中,包括左手螺旋法则、左右手拇指指向和截面观察法,也可以用非截面法确定扭矩方向。
對圓軸扭轉時的扭矩大小及方嚮的正確判定非常重要,也是校覈其彊度及剛度的關鍵。扭矩的大小可由外力偶矩求得,即為所選取部分所有外力偶矩的代數和。介紹瞭幾種關于扭矩方嚮的判定方法,除瞭最常用的右手螺鏇法則外,還總結瞭其他幾種判定方法,併做瞭詳細的對比與分析。其中,包括左手螺鏇法則、左右手拇指指嚮和截麵觀察法,也可以用非截麵法確定扭矩方嚮。
대원축뉴전시적뉴구대소급방향적정학판정비상중요,야시교핵기강도급강도적관건。뉴구적대소가유외력우구구득,즉위소선취부분소유외력우구적대수화。개소료궤충관우뉴구방향적판정방법,제료최상용적우수라선법칙외,환총결료기타궤충판정방법,병주료상세적대비여분석。기중,포괄좌수라선법칙、좌우수무지지향화절면관찰법,야가이용비절면법학정뉴구방향。
Torsion of circular shaft torque size and symbol decision is very important.Correct judgement of torque size and symbol is the strength and stiffness of the key.The torque size can be obtained by the external torque,it is the fraction of all external couple the algebraic sum of the moments.Regarding torque the symbol decision,the paper introduced several methods in addition to the most commonly used right-hand rule,through the torque symbol determination research,summed up the other some judging methods and made a detailed analysis and comparison.Left-hand rule,left and right thumb point-ing,and cross section observation can also use the non section method to determine torque symbol.