11 September 2018
- Last edited 11 September 2018
Let me see if I can describe the project in a more precise way. Correct me if I got anything wrong.
1) You have a beam that is parallel to a horizontal x-axis.
2) The beam has a uniform cross section.
3) One end of the beam is fixed (cantilevered) from a carriage that moves on a vertical slide, the other end of the beam is free.
4) You can input a velocity or acceleration signal that varies as a function of time to that vertical carriage.
5) There is a point mass on the beam that can be fixed at different locations along the length.
6) You want to predict the vertical displacements along the length of the beam versus time.
7) You want to know the natural frequencies and the mode shapes that can be excited on the beam.
A) Will some input signals to the vertical motion of the carriage be a pure sinusoidal signal?
B) Will some input signals to the vertical motion of the carriage be non-periodic?
C) Will the vertical deformation in the beam be limited to displacements of less than 5% of beam length?
You will want to use analysis systems: Modal and either Harmonic Response or Transient Structural depending on your answers to questions ABC.