Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Inerter assisted robustness of compliant liquid column damper
Inerter‐augmented tuned mass dampers (TMDI) demonstrated considerable performance robustness. A tuned liquid column damper (TLCD) offers reduced mass ratio than a TMD for identical efficiency. TLCD provides additional dissipation by flow through orifice. Motivated by these attributes, this study employs an inerter in conjunction with a TLCD. The compliance for installation of an inerter is availed by employing a compliant liquid column damper (CLCD) instead of a TLCD. The combined system is referred herein as the compliant liquid column inerter damper (CLCID). The effectiveness of the CLCID is demonstrated using a single degree of freedom (SDOF) structure and a multi‐degree of freedom (MDOF) structure. Schematic of enabling structures are suggested to facilitate installation of inerter in low‐rise and relatively tall buildings. The equations of motion for the SDOF/MODF structure and CLCID are derived and solved separately assuming a random earthquake model and recorded ground accelerations as input. The stochastic responses are employed in performing a design optimization for the CLCID parameters. The optimal performances are demonstrated subsequently under the recorded motions. The CLCID is shown to remarkably improve the control efficiency (from a range of 30%–40% in CLCD to 50%–80% in a CLCID). The efficiency of the CLCID under alternative placement of inerter between the top story and the ground/another story is demonstrated. The noted improvements show significant robustness, unparallel to the liquid dampers reported till date.
Inerter assisted robustness of compliant liquid column damper
Inerter‐augmented tuned mass dampers (TMDI) demonstrated considerable performance robustness. A tuned liquid column damper (TLCD) offers reduced mass ratio than a TMD for identical efficiency. TLCD provides additional dissipation by flow through orifice. Motivated by these attributes, this study employs an inerter in conjunction with a TLCD. The compliance for installation of an inerter is availed by employing a compliant liquid column damper (CLCD) instead of a TLCD. The combined system is referred herein as the compliant liquid column inerter damper (CLCID). The effectiveness of the CLCID is demonstrated using a single degree of freedom (SDOF) structure and a multi‐degree of freedom (MDOF) structure. Schematic of enabling structures are suggested to facilitate installation of inerter in low‐rise and relatively tall buildings. The equations of motion for the SDOF/MODF structure and CLCID are derived and solved separately assuming a random earthquake model and recorded ground accelerations as input. The stochastic responses are employed in performing a design optimization for the CLCID parameters. The optimal performances are demonstrated subsequently under the recorded motions. The CLCID is shown to remarkably improve the control efficiency (from a range of 30%–40% in CLCD to 50%–80% in a CLCID). The efficiency of the CLCID under alternative placement of inerter between the top story and the ground/another story is demonstrated. The noted improvements show significant robustness, unparallel to the liquid dampers reported till date.
Inerter assisted robustness of compliant liquid column damper
Pandey, Dhirendra Kumar (Autor:in) / Mishra, Sudib Kumar (Autor:in)
01.08.2021
27 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch