diff options
Diffstat (limited to '3886/CH9/EX9.17')
| -rw-r--r-- | 3886/CH9/EX9.17/9_17.sce | 9 | ||||
| -rw-r--r-- | 3886/CH9/EX9.17/9_17.txt | 3 |
2 files changed, 12 insertions, 0 deletions
diff --git a/3886/CH9/EX9.17/9_17.sce b/3886/CH9/EX9.17/9_17.sce new file mode 100644 index 000000000..c396c0e98 --- /dev/null +++ b/3886/CH9/EX9.17/9_17.sce @@ -0,0 +1,9 @@ +//moment of inertia
+//refer fig.9.42
+sumAiyi=(600*15)*((600/2)+20)+140*10*2*(70+30)+150*10*2*(5+20)+400*20*10 //mm^3
+A=600*15+140*10*2+150*10*2+400*20 //mm^2
+ybar=sumAiyi/A //mm
+Ixx=((15*(600^3))/(12))+(600*15*((145.39-320)^2))+((10*2*(140^3))/(12))+(1400*2*((145.39-100)^2))+((150*2*(10^3))/(12))+(1500*2*((145.39-15)^2))+((400*(20^3))/(12))+(400*20*((145.39-10)^2))
+printf("Ixx=%.2f mm^4",Ixx)
+//The answer provided in the textbook is wrong
+
diff --git a/3886/CH9/EX9.17/9_17.txt b/3886/CH9/EX9.17/9_17.txt new file mode 100644 index 000000000..b9b667f95 --- /dev/null +++ b/3886/CH9/EX9.17/9_17.txt @@ -0,0 +1,3 @@ +
+--> exec('E:\My program EM\9. Centroid and moment of inertia\9.17.sce', -1)
+Ixx=752679847.88 mm^4
\ No newline at end of file |