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Diffstat (limited to '3532/CH2/EX2.3.4')
| -rw-r--r-- | 3532/CH2/EX2.3.4/Ex2_6.sce | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/3532/CH2/EX2.3.4/Ex2_6.sce b/3532/CH2/EX2.3.4/Ex2_6.sce new file mode 100644 index 000000000..c58b1adb1 --- /dev/null +++ b/3532/CH2/EX2.3.4/Ex2_6.sce @@ -0,0 +1,19 @@ +clc
+clear
+mprintf('Mechanical vibrations by G.K.Grover\n Example 2.3.4\n')
+//given data
+M=35//mass of flywheel in Kgs
+r=0.3/2 //distance of centre of mass from pivot in m
+T=1.22 //time period of oscillation in sec
+g=9.81//accelaration due to gravity in m/(sec^2)
+//concept is as follows
+//Jo=mass moment of inertia about pivot, Wn=natural freqency
+//thetadd=theta double dot(double differentiation)
+//Jo*thetadd=-M*g*r*theta ....sum of moments is = to zero
+//Jo*thetadd +(M*g*r*theta)=0
+//Wn=sqrt((M*g*r*)/Jo)=2*pi/T
+//calculations
+Jo=M*g*r/((2*%pi/T)^2)
+Jg=Jo-M*r^2 //mass moment of inertia about geometric axis
+//output
+mprintf('Mass moment of inertia about pivot is %4.4f Kg-m^2\n Mass moment of inertia about geometric axis is %4.4f Kg-m^2',Jo,Jg)
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