diff options
Diffstat (limited to '3886/CH9/EX9.14/9_14.sce')
| -rw-r--r-- | 3886/CH9/EX9.14/9_14.sce | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/3886/CH9/EX9.14/9_14.sce b/3886/CH9/EX9.14/9_14.sce new file mode 100644 index 000000000..f1a6022b9 --- /dev/null +++ b/3886/CH9/EX9.14/9_14.sce @@ -0,0 +1,13 @@ +//Determine moment of inertia
+//refer fig.9.39
+A1=100*30 //mm^2
+A2=100*25 //mm^2
+A3=200*20 //mm^2
+A4=87.5*20/2 //mm^2
+A5=87.5*20/2 //mm^2
+A=A1+A2+A3+A4+A5 //mm^2
+ybar=(3000*135+2500*70+4000*10+875*(20/3+20)*2)/A //mm
+Ixx=((100*30*30*30)/(12))+(3000*(75.74^2))+((25*(100^3))/(12))+(2500*(10.74^2))+((200*(20^3))/(12))+(4000*(49.26^2))+((87.5*(20^3))/(36))+(875*(32.59^2))+((87.5*(20^3))/(36))+(875*(32.59^2)) //mm^4
+Iyy=((30*(100^3))/(12))+((100*(25^3))/(12))+((20*(200^3))/(12))+((20*(87.5^3))/(36))+(875*(41.66^2))+((20*(87.5^3))/(36))+(875*(41.66^2)) //mm^4
+printf("\nIxx=%.2d mm^4\nIyy=%.2d mm^4",Ixx,Iyy)
+//The answers vary due to round off error
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