  This work presents a prediction model for rolling noise in multi-story
buildings, such as that generated by a rolling delivery trolley. Until now,
mechanical excitation in multi-story buildings has been limited to impact
sources such as the tapping machine. Rolling noise models have been limited to
outdoor sources such as trains and automotive vehicles. The model presented
here is able to represent the physical phenomena unique to indoor rolling
noise, taking into account influencing factors such as the roughness of the
wheel and the floor, the material and geometric properties of the wheel and the
floor, the rolling velocity of the trolley, and the load on the trolley. The
model may be used as a tool to investigate how different flooring systems
(including multi-layer systems) respond to rolling excitation, for the purpose
of developing multi-story building solutions which are better equipped to
combat this kind of noise source.
