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authorpriyanka2015-06-24 15:03:17 +0530
committerpriyanka2015-06-24 15:03:17 +0530
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+clc
+
+ti=0.075 //m
+to=0.015//m
+a=0.05//m
+b=0.25//m
+delta=0.05 //mm
+w=6900*(2*%pi/60) //rpm
+s=1
+row=7.8*10^3//Ns^2/m^4
+E=200 //GPa
+
+//solution a:
+t1=ti*a^s
+disp(t1,"t1 is=")
+t1=to*b^2
+disp(t1,"t1 is=")
+//(ti/to)=(t1*a^-s)/(t1*b^-s)=(b/a)^s
+c=(b/a)^s
+
+(ti/to)==c
+disp(ti/to,"ti/t0 is=")
+m1=-0.5+sqrt((0.5)^2+(1+0.3*1))
+disp(m1,"m1 is=")
+m2=-0.5-sqrt((0.5)^2+(1+0.3*1))
+disp(m2,"m2 is=")
+
+//sigmar=0=(c1/t1)*(0.05)^m1+(c2/t1)*(0.05)^(m2)-0.00176*row*w^2 // r=0.05
+//sigmar=0=(c1/t1)*(0.25)^m1+(c2/t1)*(0.25)^(m2)-0.0439*row*w^2 // r=0.25
+
+c1=t1*0.12529*row*w^2
+disp(c1,"c1 is=")
+c2=t1*-6.272*10^-5*row*w^2
+disp(c2,"c2 is=")
+
+r=0.05
+sigmar=(0.12529*r^0.745-6.272*10^-5*r^(-1.745)-0.70*r^2)//*row*w^2
+disp(sigmar,"sigmar is= ")
+
+sigmatheta=(0.09334*r^0.745+1.095*10^-4*r^(-1.745)-0.40*r^2)//*row*w^2
+disp(sigmatheta,"sigmatheta is= ")
+
+//solution b:
+r=0.05
+//ur=(r*sigmatheta)/E
+ur=(r*sigmatheta)
+disp(ur,"ur is= ")
+