Figure 3
From: Damping of selectively bonded 3D woven lattice materials
Simulation results investigating the damping mechanisms: (a) The displacement – time response of the brazed and free warp wires; (b) the frequency response of brazed wires. Internal collisions between the free wires and brazed wires created a bi-modal displacement response composed of the forcing frequency (375 Hz) and the natural frequency of the brazed lattice (~1100 Hz); (c) the frequency response of free wires. Only the forcing frequency is apparent in the frequency domain; (d) The bimodal nature of the response created a visible delay between the forcing and beam global displacement signals, which mimicked viscoelastic behavior and gave the damping effect; (e) Force-displacement response of viscous materials for comparison.
