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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3792/CH7/EX7.9 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3792/CH7/EX7.9')
| -rw-r--r-- | 3792/CH7/EX7.9/Ex7_9.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3792/CH7/EX7.9/Ex7_9.sce b/3792/CH7/EX7.9/Ex7_9.sce new file mode 100644 index 000000000..fae018e14 --- /dev/null +++ b/3792/CH7/EX7.9/Ex7_9.sce @@ -0,0 +1,20 @@ +// SAMPLE PROBLEM 7/9
+clc;funcprot(0);
+// Given data
+t=4;// s
+theta=20;// degree
+p=(2*%pi)/4;// rad/s
+
+// Calculation
+// (a)
+// I_zz=(56/3)*mr^2;
+// I_xx=(32/3)*mr^2;
+// By using coefficient of I_xx and I_zz
+I=56/3;// The moment of inertia
+I_0=32/3;// The moment of inertia
+costheta=1;// radian
+n=I/((I_0-I)*costheta);// The ratio of angular rates
+// (b)
+tau=((2*%pi)/p)*abs(((I_0-I)/I)*cosd(theta));// s
+beta=atand((I/I_0)*tand(theta));// degree
+printf("\n(a)The number of complete cycles,n=%1.2f \n The minus sign indicates retrograde precession where, in the present case,and p are essentially of opposite sense. Thus, the station will make seven wobbles for every three revolutions. \n(b)The period of precession,tau=%1.3f s",n,tau);
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