Akademik Veri Yönetim Sistemi
GAZI UNIVERSİTY JOURNAL OF ENGINEERING SCIENCES, ss.457-471, 2022 (Hakemli Dergi)
In this study, a gyroscopic damper model consisting of a built-in column has been
developed. The objective of this study is determining the required angular momentum with
the optimum ratio of natural frequency for the gyroscopic vibration absorber under
sinusoidal excitation. This damper model is investigated experimentally and theoretically
for different angular momentums of the gyroscope and different frequency ratios of the
structure and damper on a single-story structure. As a result of the study, the displacement
of the structure at the 1st mode frequency for a given angular momentum of the gyroscope
is fairly reduced. Besides, at a notable frequency ratio of the damper and the structure, the
effect of the angular momentum is improved. Even if the disk mass of the gyroscope
decreases, it is possible to obtain a certain angular momentum by increasing the disk speed.
Thus, lighter and less bulky gyroscopic vibration dampers can be designed. The cooperation
of the required angular momentum with the optimum ratio of natural frequencies should
be considered to obtain a highest attenuation of the building vibration. In addition, the
equations of motion obtained according to the 1st mode and the theoretical results
overlapped.