When a
cantilever is propped with a spring at its free end instead of a support, deflection
may occur there. Nonetheless, the spring is still considered a support system
and therefore, the beam is at first degree of indeterminacy.
By applying
force method, we can derive the expression for the spring deformation in terms
of beam properties, spring constant and loading. The displacement of free end
with spring is calculated for two extreme cases: zero stiffness (cantilever)
and infinity stiffness (cantilever propped by an non-deformable support), and
the result obtained from force method is validated by the empirical formula for
both cases.
0 Comments