谈材料力学中如何快速绘制剪力图和弯矩图

2011.06———，，。，，。TeachingMethodsofMechanicsofMaterials//LiYonghongAbstractInmaterialmechanicswhenthebeambendhowtodrawtheinternalforcediagramshearforcediagramsandben－dingmomentdiagramsareexplored,thedrawingmethodissummarized,acertainexperienceisachieved.Practiceshowsgoodteachingresultsarereceivedandthequalityofteachingisimproved.Keywordsmaterialmechanics;bend;shearforcediagram;bendingmomentdiagramAuthor'saddressCentralSouthUniversityofForestry&Tech-nology,410004,Changsha,Hu'nan,China1。———[1-3]。。2、、。1。。2、。。、:dFsxdx=qxdMxdx=Fsxd2Mxdx2=dFsxdx=qx1FsMxxFs0Fs0。2Fsxx。q0q0。Fs=0。3。。4。。5。0。3。1FB=2qlFD=ql。2。。。AAFSA=-qlABFS=-qlB2ql2qlFSB=ql。BDDFSD=FSB-ql=qlFSD=04。。。。A0BMBBMB=ql×l=ql2CMC=-ql×l+12ql×l=-12qlCql2MC=-12ql2+ql2=12ql2。DMD=0。、。4。[1],.[M].:,2007.[2].()[M].:,2004.[3].()[M].:,2009.·TB121A1672-7894201116-093-01MqlDCBAqlqql2CDBA2FBFD43qlqlqlFsql2ql22ql221qql2