||<p>This thesis investigates the dynamic characteristics of a cantilever beam with
an offset mass. Starting with a linear system consisting of a cantilever beam with
a tip mass, Hamilton's principle is utilized to derive the equation of motion for
the system, then similar method is applied to a cantilever beam with an offset mass.
The equation of motion and boundary conditions are nondimensionalized to simplify
the situation. The theoretical trend of natural frequency is also derived to show
the effects of mass ratio, offset ratio and moment of inertia. Experimental results
are derived using a system consisting of a base, a 3D-printed beam and several attachments.
After comparing with theoretical data, several factors including damping ratio, moment
of inertia and Poisson's ratio are taken into consideration. Both damping ratio and
moment of inertia have very little effect and Poisson's ratio has opposite influence
on the results. Explanation for the deviation lies on the isotropy of 3D-printed beam,
which also puts forward a question on the qualification of using 3D-printed structures
for dynamical analysis.</p>