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Diffstat (limited to '3532/CH4/EX4.18/Ex4_18.sce')
| -rw-r--r-- | 3532/CH4/EX4.18/Ex4_18.sce | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/3532/CH4/EX4.18/Ex4_18.sce b/3532/CH4/EX4.18/Ex4_18.sce new file mode 100644 index 000000000..b568e3c24 --- /dev/null +++ b/3532/CH4/EX4.18/Ex4_18.sce @@ -0,0 +1,15 @@ +clc
+clear
+mprintf('Mechanical vibrations by G.K.Grover\n Example 4.11.4\n')
+//given data
+RF=1800//resonant frequency in rpm
+L=0.050//lenght of steel reed in metres
+B=0.006//width of steel reed in metres
+t=0.00075//thickness of steel reed in metres
+E=19.6*10^10//young's modulus in N/(m^2)
+//calculations
+Wn=2*%pi*RF/60//natural frequency in radians
+I=(B*t^3)/12//moment of inertia in (m^4)
+m=3*E*I/((Wn^2)*L^3)//required mass
+//output
+mprintf('The required mass M to be placed at the end of the reeds of Frahm tachometer is %f Kgs',m)
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