高考问答三星的增强信息是什么:请问密度单位 lbf-sec2/in4 转化为国际单位是多少？怎么转化？
来源：百度文库 编辑：高考问答 时间：2024/04/28 04:51:34
2和4分别表示2次方和4次方
mp,ex,1,30.0e6 ! modulus of hub (psi)
mp,dens,1,7.33e-4 ! mass density of hub (lbf-sec^2/in^4)
mp,nuxy,1,0.30 ! Poisson's ratio (unitless)
mp,ex,2,30.0e6 ! modulus of blade platform (psi)
mp,dens,2,7.33e-4 ! mass density of blade platform (lbf-sec^2/in^4)
mp,nuxy,2,0.30 ! Poisson's ratio (unitless)
mp,ex,3,30.0e6 ! modulus of blade (psi)
mp,dens,3,7.33e-4 ! mass density of blade (lbf-sec^2/in^4)
mp,nuxy,3,0.30 ! Poisson's ratio (unitless)
mp,ex,4,30.0e6 ! modulus of engine duct (psi)
mp,dens,4,7.33e-4 ! density of duct not used (lbf-sec^2/in^4)
mp,nuxy,4,0.30 ! Poisson's ratio (unitless)