Novel adaptive tuned viscous inertance damper (ATVID) with adjustable inertance and damping for structural vibration control

• Published in: Structures (Oxford) Vol. 29; pp. 814 - 822
• Main Authors: Ali Sadeghian, Mohammad, Yang, Jian, Wang, Xing-er, Wang, Feiliang
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2021
• Subjects: Adaptive device; Adaptive tuned viscous inertance damper (ATVID); continuously variable transmission (CVT); Variable inertance; Variable inerter; Variable inerter; Adaptive tuned viscous inertance damper (ATVID); Variable inertance; Adaptive device; continuously variable transmission (CVT)
• ISSN: 2352-0124; 2352-0124
• DOI: 10.1016/j.istruc.2020.11.050

In this study, we present an approach to alter the inertance of inerter-based devices, depending on the variation of the frequency of the external excitation. In this regard, we propose a newly developed variable inerter which is able to change the inertance using a versatile type of continuously variable transmission (CVT) mounted on a ball-screw inerter, it is called adaptive tuned viscous inertance damper (ATVID). The proposed device is capable of generating a variable inertance and viscous damping simultaneously contributed to provide seamless variability in its frequency. To evaluate the device performance, damping properties of the ATVID-controlled is compared with passive controlled and uncontrolled single-degree-of-freedom structures exposed to the harmonic ground excitation with variable frequency. Results show an excellent level of vibration reduction in structure using ATVID in a large width of the frequency band of the excitation.