The figure 3 represents the construction hoist used to handle
material handling in construction sites Figure 3: Construction
Hoist
a) Explain the working principle of construction hoist and its
application.
b) Identify the mechanism used for construction hoist.
c) Identify the driving link and generate the kinematic
diagram.
d) How the vibration on the machine is managed during
operation?
A construction crew wants to hoist a heavy beam so that it is standing up straight They tie a rope to the beam and secure its base (the bottom) Then they pull the rope to raise the top end of the beam off the ground. When the beam makes an angle of 40 degrees with the ground, the top of the beam is 8 feet above the ground There are telephone wires nearby and the workers are worried that the...
1) Brushless DC Motor
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a. Explain the working principle by supporting with visuals
which are drawned by yourself.
b. Give at least five samples to the most common areas of
use.
c. Explain how to read nameplate of the chosen machine by giving
an example.
d. Give the torque-speed charachretistics and explain how this
figure is used in real application.