  We study a nonlinear coupled fluid-structure system modelling the blood flow
through arteries. The fluid is described by the incompressible Navier-Stokes
equations in a 2D rectangular domain where the upper part depends on a
structure satisfying a damped Euler-Bernoulli beam equation. The system is
driven by time-periodic source terms on the inflow and outflow boundaries. We
prove the existence of time-periodic strong solutions for this problem under
smallness assumptions for the source terms.
