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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3204/CH21/EX21.5 | |
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initial commit / add all books
Diffstat (limited to '3204/CH21/EX21.5')
| -rw-r--r-- | 3204/CH21/EX21.5/Ex21_5.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/3204/CH21/EX21.5/Ex21_5.sce b/3204/CH21/EX21.5/Ex21_5.sce new file mode 100644 index 000000000..b4b18bb55 --- /dev/null +++ b/3204/CH21/EX21.5/Ex21_5.sce @@ -0,0 +1,22 @@ +// Initilization of Variables
+r=0.12 // m // length of the crank
+l=0.6 // m // length of the connecting rod
+N=300 // r.p.m // angular velocity of the crank
+theta=30 // degree // angle made by the crank with the horizontal
+// Calculations
+// Now let the angle between the connecting rod and the horizontal rod be phi
+phi=asind((r*sind(theta))/(l)) // degree
+// Now let the angular velocity of crank OA be omega_oa, which is given by eq'n
+omega_oa=(2*%pi*N)/(60) // radian/second
+// Linear velocity at A is given as,
+v_a=r*omega_oa // m/s
+// Now using the sine rule linear velocity at B can be given as,
+v_b=(v_a*sind(35.7))/(sind(84.3)) // m/s
+// Similarly the relative velocity (assume v_ba) is given as,
+v_ba=(v_a*sind(60))/(sind(84.3))
+// Angular velocity (omega_ab) is given as,
+omega_ab=v_ba/l // radian/second
+// Results
+clc
+printf('(a) The angular velocity of the connecting rod is %f radian/second \n',omega_ab)
+printf('(b) The velocity of the piston when the crank makes an angle of 30 degree is %f m/s \n',v_b)
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