نوع مقاله : مقاله پژوهشی
عنوان مقاله English
Many modern slender and flexible structures are highly sensitive to dynamic vibrations, which may lead to the failure of these types of structures. Recently, Tuned Liquid Column Dampers (TLCDs) have gained significant attention from many researchers. In a TLCD, the fluid motion inside a U-shaped tube generates a restoring force on the structure, thereby reducing the structure's response. One of the main advantages of these dampers is their low cost of construction and maintenance. Various types of TLCDs exist for vibration control. In this study, the performance of five different types of passive TLCDs is compared. These dampers include: U-shaped TLCD, V-shaped TLCD, TLCD with non-uniform cross-section (LCVA), ball-type TLCD (TLCBD), and gas or spring-type TLCD (TLCGD). For this purpose, the response of a single degree of freedom (SDOF) system with and without the dampers is evaluated under the excitation of the Kobe, El Centro, and Taft earthquakes. In this paper, the equations of motion for the structure and the damper are analyzed using numerical methods in MATLAB software. The results indicate a superior performance in the following order: TLCBD, TLCGD, and LCVA compared to TLCD and V-TLCD.
کلیدواژهها English