Results 21 to 30 of about 179 (117)

Impact Fatigue of Viscoelastic Materials Subjected to Pounding

Applied Sciences, 2018
The pounding tuned mass damper (PTMD) is a novel vibration control device that can be used for many different structures. The PTMD utilizes a viscoelastic delimiter to enhance its vibration control effectiveness and robustness though pounding between the
Peng Zhang, Linsheng Huo, Gangbing Song
doaj   +2 more sources

Control Action of a Tuned Mass Damper in Mitigating Earthquake-Induced Structural Pounding Between Building Floors [PDF]

, 2022
Passive control devices are widely used in the reduction of lateral vibrations of building structures. The control of these lateral vibrations is vital in preventing collisions between adjacent building structures during a seismic event. These collisions modify the dynamic behavior of the intervenient structures and cause substantial local damage.
Pedro Folhento, Rui Carneiro Barros, Manuel Braz-César   +2 more
core   +4 more sources

An Updated Analytical Structural Pounding Force Model Based on Viscoelasticity of Materials [PDF]

Shock and Vibration, 2016
Based on the summary of existing pounding force analytical models, an updated pounding force analysis method is proposed by introducing viscoelastic constitutive model and contact mechanics method. Traditional Kelvin viscoelastic pounding force model can
Qichao Xue, Chunwei Zhang, Jian He, Guangping Zou, Jingcai Zhang   +4 more
doaj   +2 more sources

Editorial for Special Issue “Energy Dissipation and Vibration Control: Materials, Modeling, Algorithm, and Devices”

Applied Sciences, 2020
Many engineering systems, from subsea pipelines to space structures, from moving vehicles to stationary skyscrapers, are subject to unwanted vibration excitations. Often vibration control can be considered as a problem of energy dissipation and vibration
Gangbing Song, Hong-Nan Li, Steve C.S. Cai   +2 more
doaj   +2 more sources

Multi-Hazard Vibration Control of Transmission Infrastructure: A Pounding Tuned Mass Damper Approach with Lifelong Reliability Analysis

Buildings
Power transmission tower-line systems are exposed to various dynamic hazards, including wind and earthquakes, among others. Despite the multitude of dampers proposed to mitigate vibrations, the dual control effect on both seismic and wind-induced ...
Zhuoqun Zhang, Lizhong Qi, Jingguo Rong, Yaping Zhang, Peijie Li, Ziguang Jia   +5 more
doaj   +2 more sources

Impact of TMDI on pounding mitigation of insufficiently separated buildings exposed to earthquakes with varying frequencies

Journal of Low Frequency Noise, Vibration and Active Control
Sever damages or even total collapses were recorded due to collisions between insufficiently separated neighboring structures exposed to seismic forces.
Ayman Abd-Elhamed, Sayed Mahmoud, Alaa Sherif, Haytham Essam Amin   +3 more
doaj   +2 more sources

Intelligent Soft Robotic Grippers for Agricultural and Food Product Handling: A Brief Review with a Focus on Design and Control

Advanced Intelligent Systems, Volume 5, Issue 12, December 2023., 2023
Soft grippers gain immense popularity in handling delicate and fragile objects. In this mini‐review article, a comprehensive overview of the design and control aspects of intelligent soft robotic grippers tailored specifically for agricultural product handling is provided.
Yuxuan Liu, Jixin Hou, Changying Li, Xianqiao Wang   +3 more
wiley   +1 more source

An analytical frequency‐domain model of aerodynamic mass and damping of floating wind turbines

Wind Energy, Volume 26, Issue 11, Page 1140-1164, November 2023., 2023
Abstract The fore‐aft motion of the rotor‐nacelle assembly (RNA) of a rotating floating wind turbine (FWT) can cause an oscillation in aerodynamic thrust, which may be equivalently treated as frequency‐dependent aerodynamic mass and damping effects. In this study, an explicit frequency‐domain analytical model is proposed to calculate the equivalent ...
Can Yang, Longfei Xiao, Peng Chen, Zhengshun Cheng, Mingyue Liu, Lei Liu   +5 more
wiley   +1 more source

Thermal insulation versus capacitance: A simulation experiment comparing effects of shade and hyporheic exchange on daily and seasonal stream temperature cycles

Hydrological Processes, Volume 37, Issue 9, September 2023., 2023
We use a novel stream heat‐budget model incorporating advection and storage of heat in the hyporheic zone to compare the effects of riparian shade versus hyporheic exchange on stream temperatures and heat budgets. Shade is akin to ‘thermal insulation’ on the channel—reducing heat‐gain via solar radiation and preventing heat‐loss via longwave radiation.
S. Kathleen Fogg, Ann Marie Reinhold, Scott J. O'Daniel, Amanda A. Hyman, Geoffrey C. Poole   +4 more
wiley   +1 more source

Electrochemistry and Spin‐Crossover Behavior of Fluorinated Terpyridine‐Based Co(II) and Fe(II) Complexes

European Journal of Inorganic Chemistry, Volume 26, Issue 19, July 3, 2023., 2023
Fluorinated terpyridine ligands form stable Fe(II) and Co(II) complexes that are redox‐rich and display multiple oxidation and reduction steps. Additionally, the Co(II) complexes show spin crossover close to room temperature. Abstract Due to their ability to form stable molecular complexes that have tailor‐made properties, terpyridine ligands are of ...
Maite Nößler, René Jäger, David Hunger, Marc Reimann, Tobias Bens, Nicolás I. Neuman, Arijit Singha Hazari, Martin Kaupp, Joris van Slageren, Biprajit Sarkar   +9 more
wiley   +1 more source