our masses A, B, C and D are attached to a shaft and revolve in the same plane. The masses are 24 kg, 20 kg, 21 kg, and 18 kg, respectively and their radii of rotations are 50 cm, 50 cm, 60 cm and 30 cm. the angular position of the masses B, C, and D are 60º, 135º and 270º from the mass A. the shaft is rotating with a constant angular speed ω = 500 rpm. We need to find : 1. The magnitude and direction of the resultant inertia force before balancing 2. The magnitude and direction of the balancing mass at a radius of 10 cm The magnitude of the resultant force, in Newton, before balancing is  = The direction of resultant force before balancing measured in degree CCW from the mass A is = The magnitude of the balancing mass in kg is = The direction of the balancing mass measured in degree CCW from the mass A is = the magnitude of resultant force after balancing is =

Elements Of Electromagnetics
7th Edition
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Author:Sadiku, Matthew N. O.
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Four masses A, B, C and D are attached to a shaft and revolve in the same plane. The masses are 24 kg, 20 kg, 21 kg, and 18 kg, respectively and their radii of rotations are 50 cm, 50 cm, 60 cm and 30 cm. the angular position of the masses B, C, and D are 60º, 135º and 270º from the mass A. the shaft is rotating with a constant angular speed ω = 500 rpm. We need to find : 1. The magnitude and direction of the resultant inertia force before balancing 2. The magnitude and direction of the balancing mass at a radius of 10 cm The magnitude of the resultant force, in Newton, before balancing is  = The direction of resultant force before balancing measured in degree CCW from the mass A is = The magnitude of the balancing mass in kg is = The direction of the balancing mass measured in degree CCW from the mass A is = the magnitude of resultant force after balancing is = 
Connecting
rod
Y 4
Gas
A
pressure Pg
3
1
B
X
4
Crank
0 2
Cylinder
Piston
Transcribed Image Text:Connecting rod Y 4 Gas A pressure Pg 3 1 B X 4 Crank 0 2 Cylinder Piston
The crank and connecting rod of the steam
engine are 0.4 m and 2.4 m in length. The
crank rotates at 100 rpm CCW.
Note that all calculations must be done
using approximated expressions
2/11
The acute crank angle, for zero
acceleration of the piston, measured in
degree CCW is =
The position of the piston, when the crank
is at 50°, measured from 02 in m, is =
The acceleration of the piston, when the
crank is at 50°, in m/s2 is =
The velocity of the piston, when the crank
is at 50°, in m/s is =
The crank angle, at which the maximum
velocity of the piston occurs, measured in
degree CCW =
the maximum velocity of the piston is (in
3/11
m/s) =
Transcribed Image Text:The crank and connecting rod of the steam engine are 0.4 m and 2.4 m in length. The crank rotates at 100 rpm CCW. Note that all calculations must be done using approximated expressions 2/11 The acute crank angle, for zero acceleration of the piston, measured in degree CCW is = The position of the piston, when the crank is at 50°, measured from 02 in m, is = The acceleration of the piston, when the crank is at 50°, in m/s2 is = The velocity of the piston, when the crank is at 50°, in m/s is = The crank angle, at which the maximum velocity of the piston occurs, measured in degree CCW = the maximum velocity of the piston is (in 3/11 m/s) =
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