Pregled bibliografske jedinice broj: 1130615
Stability and performance of supercritical inerter-based active vibration isolation systems
Stability and performance of supercritical inerter-based active vibration isolation systems // Journal of Sound and Vibration, 518 (2022), 116234, 26 doi:10.1016/j.jsv.2021.116234 (međunarodna recenzija, članak, znanstveni)
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Naslov
Stability and performance of supercritical inerter-based active vibration isolation systems
Autori
Čakmak, Damjan ; Tomičević, Zvonimir ; Wolf, Hinko ; Božić, Željko ; Semenski, Damir
Izvornik
Journal of Sound and Vibration (0022-460X) 518
(2022);
116234, 26
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
active vibration control ; vibration isolation ; inerter ; supercritical system ; Routh-Hurwitz stability criterion ; direct velocity feedback ; skyhook damping ; displacement based H2 optimization
Sažetak
This paper presents an analytical study on stability and performance of supercritical linear active vibration isolation systems. The systems analyzed are consisted of source and receiving bodies. Receiving body is to be protected from vibrations. Supercritical scheme means that the uncoupled natural frequency of the receiving body is smaller than the uncoupled natural frequency of the source body. Broadband random kinematic/base excitation of the source body is imposed. Passive and active supercritical systems are studied. The isolation system is made active via direct velocity feedback, i.e. skyhook damping assumption. Serial and parallel arrangements of the inerter and dashpot in the isolator are considered. It is demonstrated that including an optimized inerter in the isolator introduces instabilities in otherwise unconditionally stable active system and consequently deteriorates isolator performance. However, by serial dashpot/inerter arrangement and simultaneous optimization of passive and active damping in this inerter-based isolator, improved performance may be achieved compared to the parallel systems without inerter. Optimization is based on the H2 displacement criterion where broadband vibrations of the receiving body are minimized. Proposed “optimum stable path” method is introduced via blending H2 optimization and Routh-Hurwitz stability criteria. Obtained expressions are given in closed-form.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
IP-2019-04-5402 - Dinamika Aktivnih i Rotirajućih KONstrukcija (DARS) (Alujević, Neven, HRZZ - 2019-04) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
Profili:
Hinko Wolf (autor)
Željko Božić (autor)
Damjan Čakmak (autor)
Zvonimir Tomičević (autor)
Damir Semenski (autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus