TY - JOUR AB - Piezoelectric inertia motors use the inertia of a body to drive it by means of a friction contact in a series of small steps. It has been shown previously in theoretical investigations that higher velocities and smoother movements can be obtained if these steps do not contain phases of stiction (''stick-slip`` operation), but use sliding friction only (''slip-slip`` operation). One very promising driving option for such motors is the superposition of multiple sinusoidal signals or harmonics. In this contribution, the theoretical results are validated experimentally. In this context, a quick and reliable identification process for parameters describing the friction contact is proposed. Additionally, the force generation potential of inertia motors is investigated theoretically and experimentally. The experimental results confirm the theoretical result that for a given maximum frequency, a signal with a high fundamental frequency and consisting of two superposed sine waves leads to the highest velocity and the smoothest motion, while the maximum motor force is obtained with signals containing more harmonics. These results are of fundamental importance for the further development of high-velocity piezoelectric inertia motors. AU - Hunstig, Matthias AU - Hemsel, Tobias AU - Sextro, Walter ID - 9876 JF - Archive of Applied Mechanics KW - Inertia motor KW - High velocity KW - Stick-slip motor KW - Slip-slip operation KW - Friction parameter identification SN - 0939-1533 TI - High-velocity operation of piezoelectric inertia motors: experimental validation ER - TY - CONF AB - It has been shown previously that ``slip-slip'' operation of piezoelectric inertia motors allows higher velocities and smoother movements than classic ``stick-slip'' operation. One very promising driving option is to use a superposition of multiple sinusoidal signals. In this contribution, previous theoretical results are validated experimentally. The results confirm the theoretical result that for a given maximum frequency, usually defined by the actuator characteristics, a signal with high fundamental frequency and consisting of two superposed sine waves leads to the highest velocity and the smoothest motion. This result is of fundamental importance for the further development of high-velocity piezoelectric inertia motors. AU - Hunstig, Matthias AU - Hemsel, Tobias AU - Sextro, Walter ID - 9802 KW - Piezoelectric inertia motor KW - stick-slip motor KW - driving signal KW - velocity KW - smoothness T2 - Proceedings of 10th International Workshop on Piezoelectric Materials and Applications and 8th Energy Harvesting Workshop TI - High-Velocity Slip-Slip Operation of Piezoelectric Inertia Motors - Experimental Validation ER -