How can I observe the coriolis force on a mass moving radially on a spring?
In the following simple example a single beam element which is very stiff
in bending, but very soft axially is used to produce a 500 #/in spring. There
is a unit mass at the end of the beam. The beam rotates around the i node
5 radians in 5 seconds. To get the radial motion the beam is given an initial
unit axial extension. The shear force in the beam at node j is the coriolis force.
r,2,1 ! unit mass
kbc,0 ! ramped load
d,1,rotz,5 ! 5 radians
ic,2,ux,1 ! expand spring to 21 radius
ic,2,uy,,21 ! initial tangential velocity to produce 1 radian/sec