Energy dissipation in horizontally driven particle dampers of low acceleration intensities

Abstract The energy dissipation in sinusoidally driven particle dampers is highly dependent on the motion mode of bed. Especially, for applications low acceleration intensity, i.e., amplitude below gravitational acceleration, only small rates are obtained so far, due to sticking particles. Here, a new and more efficient design introduced such applications, whereby focus horizontal vibrations. proposed makes use rolling property spheres inside containers with flat bases. First, cuboid container shape studied. Two different modes observed experimentally within this shape. For driving amplitudes, bed showing scattered behavior resulting damping efficiency. high amplitudes instead, collect-and-collide state much higher Analytical descriptions derived both modes, being good agreement experimental measurements. It that optimal working point dampers, stroke, depending filling ratio damper. Additionally, separates modes. lower strokes as one, observed, while seen. Sensitivity analyses performed using setup discrete element simulations. especially friction coefficient radius beneficial. On other hand, tilt around container’s longitudinal or pitch axis might significantly decrease efficiency Besides container, effect cylindrical heading against gravity analyzed. While little influenced, damper becomes independent excitation direction plane. Thus, could be applied large field mechanical civil engineering.