Results 61 to 70 of about 987 (192)

Hysteretic Behavior of the Lubricated Curved Surface Slider Under Variable Contact Pressure

Advances in Civil Engineering
Lubricated curved surface sliders (L-CSSs) with modified ultrahigh-molecular-weight polyethylene (M-UHMWPE) are highlighted in the prevention of bearing failure due to the high-temperature degradation of friction materials during high-speed operation ...
Mianyue Yang, Juncheng Lv, Ai Qi, Yingxiong Wu, Mianchao Yang   +4 more
doaj   +1 more source

Seismic evaluation of the southbound Stellenberg Interchange Bridge, B5593, in South Africa

Structural Concrete, EarlyView.
Abstract This study presents a nonlinear finite element assessment of the seismic vulnerability of Bridge B5593, located in the south‐western region of South Africa. Previous evaluations identified a high likelihood of column failure; however, these were based on linear material models incapable of capturing damage evolution.
Wandie Olivier, Trevor Haas
wiley   +1 more source

Parametric study on free vibration and instability of a functionally graded cracked shaft in a rotor-disc-bearing system: finite element approach

MATEC Web of Conferences, 2018
Free vibration and stability analysis are studied for a rotor-disk-bearing system having a radially functionally graded (FG) shaft with a transversely fully open crack, based on finite element (FE) approach.
Gayen Debabrata, Chakraborty Debabrata, Tiwari Rajiv   +2 more
doaj   +1 more source

Asymmetric Dynamic Model of Temperature-Dependent Magnetorheological Damper and Application for Semi-active System

Frontiers in Materials, 2019
As a semi-active hydraulic device, the magnetorheological (MR) damper's damping characteristics will be influenced by temperature. In addition, the MR damper with gas accumulator usually shows asymmetric loop characteristics.
Jianqiang Yu, Xiaomin Dong, Xiaomin Dong, Xuhong Wang, Chengwang Pan, Yaqin Zhou   +5 more
doaj   +1 more source

Sensitivity of 3D Base‐Isolated Buildings to Individual Isolator Variability

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2653-2668, September 2026.
ABSTRACT Variability in elastomeric isolators arises from differences in rubber formulation and curing, leading to noticeable changes in stiffness and damping among nominally identical bearings. While most previous studies have examined global isolator variability associated with environmental or aging effects, individual isolator variability has ...
Norouz Jahan, Niel C. Van Engelen
wiley   +1 more source

Arc-Surfaced Frictional Damper for Vibration Control in Container Crane

Shock and Vibration, 2017
In this paper, a new arc-surfaced frictional damper (AFD) is proposed and its hysteretic behavior is experimentally studied. Then the device is applied to container crane based on a seesaw mechanism.
Gongxian Wang, Yang-Yang Wang, Jianming Yuan, Yi Yang, Dong Wang   +4 more
doaj   +1 more source

Hysteretic damping model in timber beams [PDF]

, 2019
Vibrations of timber floors in residential buildings and timber bridges under vehicle and pedestrian loading are a subject of research for the new version of the European norms for the design of timber structures. One of the topics that is least understood is the principle of damping in timber beams which are one of the main structural elements in ...
openaire   +1 more source

Concept, Tests, and Optimum Design of Novel Negative Stiffness Friction Dampers for Seismic Protection of Long‐Span Bridges

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2719-2741, September 2026.
ABSTRACT Viscous dampers (VDs) are widely used to mitigate the excessive responses of long‐span bridges. However, VDs face some intricate challenges in engineering practices, including high damping coefficient requirement, potential base shear amplification and tremendous damping force under high velocity. To address these issues, this study develops a
Ruisheng Ma, Shaodong Jiang, Kun Xu, Qiang Han, Xiuli Du, Kaiming Bi   +5 more
wiley   +1 more source

Design and Hysteretic Performance Analysis of a Novel Multi-Layer Self-Centering Damper with Shape Memory Alloy

Buildings
This paper presented the development process of a novel multi-layer self-centering damper utilizing a NiTi shape memory alloy (SMA) with remarkable superelastic properties.
Hua Zhang, Lu Zhao, Anbang Li, Shanhua Xu   +3 more
doaj   +1 more source

Weak‐Story Mitigation and Drift Redistribution in Moment‐Resisting Frames Using Stepping Rocking Walls

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2760-2780, September 2026.
ABSTRACT This study investigates the seismic response of moment‐resisting frames retrofitted with a stepping rocking wall, with emphasis on weak‐story mitigation and residual drift reduction under both ordinary and pulse‐like ground motions. Nonlinear response‐history analyses are conducted on 9‐story and 20‐story SAC Los Angeles frames.
Mehrdad Aghagholizadeh
wiley   +1 more source