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Flavia Bustos, Jorge Hinojosa and Víctor Tuninetti
The computational modeling of hysteretic dampers is a powerful tool for design, allowing us to predict and optimize damper performance. In this research, a numerical model, based on Chaboche?s nonlinear kinematic hardening constitutive law, was implement...
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Ali Ghamari, Chanachai Thongchom, Ramadhansyah Putra Jaya and Thandiwe Sithole
Concentrically braced frame (CBF) systems are susceptible to buckling (which causes a decrease in energy absorption), although this system has considerable lateral stiffness and strength. To over this shortcoming, researchers have suggested the use of I-...
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Xueyuan Yan, Yongtai Yang, Tonghan Guo, Guoguan Lan and Huimin Mao
In order to improve the seismic and energy dissipation capacity of the whole structure, a friction-oval section mild steel rod composite damper (FOSRCD) was proposed, and its working principle was clarified. The finite element analysis of FOSRCD was carr...
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Xiaojun Zhu, Longji Dang, Shuting Liang, Ming Zhang, Jian Yang and Xin Dai
To investigate the hysteretic behavior of an X-shaped metal damper (XMD) with an oblique angle, cyclic loading tests were carried out on nine specimens, including two XMDs without buckling-restrained devices, four XMDs with stiffening ribs, and three XMD...
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Jixin Man, Beirao Xue, Xiangde Bian, Wengao Yan, Da Qiao and Wu Zeng
Friction dampers are widely employed to reduce blade resonance vibration amplitude in turbomachinery. In this paper, a study was performed on the forced response of two blades with dual friction dampers. Numerical simulation and experimental testing were...
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Yanchao Yue, Changxin Li, Kai Jia, Yuhang Zhang and Jingjing Tian
To optimize the seismic performance of a new type of steel-concrete tower, a 120 m steel-concrete composite tower model with a tuned mass damper (TMD) was constructed in ABAQUS for simulation analysis. Firstly, a time history analysis was conducted to st...
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Zhipeng Zhai, Wei Guo, Yanhui Liu, Shuang Zou and Fulin Zhou
In this paper, a new precast self-centering rocking shear wall system (PSCRSW) mainly composed of precast reinforced concrete (RC) wall, V-shaped steel brace and pre-pressed disc spring friction damper (PDSFD) are proposed to enhance the seismic resilien...
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Wei Chen, Xingyu Du, Bao-Lin Zhang, Zhihui Cai and Zhongqiang Zheng
To improve the safety and reliability of offshore structures subject to wave loading, the active vibration control problem is always one of significant issues in the field of ocean engineering. This paper deals with the near?optimal control problem of of...
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Ali Ghamari, Behroz Almasi, Chang-hyuk Kim, Seong-Hoon Jeong and Kee-Jeung Hong
An innovative passive energy damper is introduced and studied experimentally and numerically. This damper is designed as the main plate for energy absorption which is surrounded by an octagon cover. In addition to simplicity in construction, it can be ea...
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Sang-Woo Kim and Kil-Hee Kim
This study proposes a relatively simple steel damper with high energy dissipation capacity. Three types of steel dampers were evaluated for structural performance. The first damper with U-shape had two vertical members and a semicircular connecting membe...
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