Design and identification of parameters of tuned mass damper with inerter which enables changes of inertance

- We present and describe in details the realization of a unique large scale experimental rig.
- Detailed description of the prototype TMD realization with its crucial elements is provided.
- We show the mathematical model that enables to simulate the behavior of the considered system.
- Full identification of system's parameters is performed including detailed validation of the energy dissipation model.
- The model is validated by comparing the results of numerical simulations and the experimental data, which proves well-posedness of the model and confirms the obtained parameters values.

In this paper we show the design of a novel tuned mass damper with inerter that enables changes of inertance. We present the details of the experimental rig that is used to test the prototype device and provide technical documentation of its crucial elements. The mathematical model of the system is derived based on the Lagrange equations of the second type. We identify the parameters of the system: masses, stiffnesses of springs and damping coefficients. We pay special attention to identification of energy dissipation model composed of viscous damping and Coulomb damping. We use two step procedure to find the proper values of damping coefficients with high precision. To validate the model we compare the numerical and experimental time traces. Good matching of the results prove well-posedness of the model and confirm the obtained parameter values.