How much Load will swing
How much Load will swing
(OP)
Load is hanged from a crane by a cable. Crane suddenly stops, hence,
load and cable behave as Pendulum. If I know length of cable and weight
of load, by what equation I can find how much further the load will swing?
load and cable behave as Pendulum. If I know length of cable and weight
of load, by what equation I can find how much further the load will swing?






RE: How much Load will swing
RE: How much Load will swing
Kineteic energy at crane stop = potential energy at top of swing. Look up your physics texts for this type of situation.
csd
RE: How much Load will swing
swing at all.
Mike McCann
McCann Engineering
RE: How much Load will swing
If the weight's post-stop pendulum motion is going to be small enough, your problem can be treated as standard simple harmonic motion:
displacement = x = a*sin(wt)
and
velocity = x' = aw*cos(wt)
For a pendulum with small displacements, w = sqrt(g/L).
At the time the crane stops moving, t=0 and
x' = crane's previous travel velocity.
Hence solve the velocity equation for "a", which is the answer you seek.