Summary
Intermodal Targeted Energy Transfer (IMTET) is a new methodology for mitigation of undesired vibrations by facilitating the energy transfer between the modes and effective utilization of internal damping capacity of the structure. The method is based on introduction of substantially nonlinear elements that enable intensive transfer of energy between the structural modes. Previous studies on the topic primarily relied on direct optimization of the system parameters. In current presentation, a simple IMTET arrangement comprising a cantilever beam with a single impact constraint is considered. This benchmark model allows direct assessment of the modal interactions and rearrangement, depending on the initial conditions and details of the system structure. Then, one can assess the optimality of particular design solutions. Main conclusion is the relative robustness of the optimal design with respect to varying external excitations.
