Results 61 to 70 of about 623,845 (356)

Sliding velocity dependence of kinetic friction coefficient of bronze-filled polytetrafluoroethylene and its application to robustness improvement of friction damper

open access: yesMechanical Engineering Journal, 2023
This study demonstrates that the robustness of friction dampers can be enhanced by using the positive velocity dependence of the kinetic friction force.
Satoru MAEGAWA   +3 more
doaj   +1 more source

Investigation of under-platform damper kinematics and its interaction with contact parameters (nominal friction coefficient) [PDF]

open access: yes, 2013
The novel approach proposed by the authors consists in directly measuring the forces transmitted between the two platforms through the damper, versus the relative motion of the platforms.
Braga Dos Santos, Marcelo   +2 more
core  

Isotopically Selected Co‐Doping of 121Sb and 123Sb Pairs in Silicon

open access: yesAdvanced Materials, EarlyView.
Pairs of 121Sb and 123Sb atoms are doped into silicon using single cluster implantation and found to reside substitutionally within the crystal lattice due to self‐annealing with a Sb‐to Sb separation of ≈2 nm. Molecular dynamics simulations reproduce the observed experimental results and single ion cluster detection efficiencies of 94% are ...
Mason Adshead   +14 more
wiley   +1 more source

Investigations on amplitude adaptive sequential friction‐spring dampers [PDF]

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2019
AbstractThis paper presents two sequential friction‐spring damper configurations and develops numerical and analytical models, which describe the systems' behavior. The dampers rely on the non‐smooth characteristics of dry friction to quench unwanted oscillations and only dissipate energy once a preset breakaway force of the friction element is ...
Aramendiz, J., Fidlin, A., Lei, K.
openaire   +3 more sources

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

A Novel Design Concept of a Magnetorheological Fluid-Based Damper Utilizing the Porous Medium for Implementation in Small-Scale Applications

open access: yesFluids, 2023
Magnetorheological (MR) dampers have a virtue over conventional dampers, where their damping properties can be adjusted using a magnetic field. However, MR dampers have been barely implemented in small vibratory systems, in which the modal mass and ...
Aditya Suryadi Tan   +2 more
doaj   +1 more source

A damper for ground wind-induced launch vehicle oscillations [PDF]

open access: yes, 1975
Prelaunch oscillatory bending deflections of the Atlas/Centaur launch vehicle are restrained by a damper mechanism mounted on the end of a horizontal boom supported from the umbilical tower. A single vertical pin on the vehicle engages the mechanism, and
Bodle, J. G., Hackley, D. S.
core   +1 more source

Lenoir friction damper and its applications

open access: yesTransportation Research Procedia, 2021
Abstract This paper deals with the Lenoir friction damper and its applications. The first part mentions the basics of friction damping. The concept of dry friction is explained. Also, there are shown some models of friction forces depending on damping value and some basic graphs of Coulomb law.
openaire   +1 more source

Elastomers Combining Damping Efficiency With Rapid Recovery

open access: yesAdvanced Materials Technologies, EarlyView.
Double network granular elastomers (DNGEs) combine high energy dissipation under both cyclic loading and high impact with rapid shape recovery. 3D printing enables the production of complex, customizable structures with tailored performance. Recyclable DNGEs retain their properties over multiple recycling cycles.
Eva Baur, Alain Molleyres, Esther Amstad
wiley   +1 more source

Performance Evaluation on Transmission Tower-Line System with Passive Friction Dampers Subjected to Wind Excitations

open access: yesShock and Vibration, 2015
The vibration control and performance evaluation on a transmission-tower line system by using friction dampers subjected to wind excitations are carried out in this study. The three-dimensional finite element (FE) model of a transmission tower is firstly
Bo Chen   +3 more
doaj   +1 more source

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