Results 21 to 30 of about 6,692 (310)

Experimental Study on Friction of Hydraulic Cylinder in Different Sealing Systems

open access: yesMATEC Web of Conferences, 2018
The friction of the hydraulic cylinder mainly comes from the sealing part, the existence of friction leads the wear of the seal. In view of the serious impact of the damage of the seal on the hydraulic cylinder, a set of sealing test system was designed,
Ma Ke, Wang Jiawei, Gu Le
doaj   +1 more source

Experimental Investigation of Displacer Seal Geometry Effects in Stirling Cycle Machines

open access: yesEnergies, 2019
This contribution deals with an experimental investigation of the optimization potential of Stirling engines and similar regenerative machines by an enhanced design of the cylinder liner and the seal.
Jan Sauer, Hans-Detlev Kühl
doaj   +1 more source

Aeroacoustic performance of a seal vibrissa shaped cylinder [PDF]

open access: yes, 2023
Bio-inspired geometries have many applications in engineering, including in the field of noise control. In this work, the aeroacoustic performance of a seal vibrissa shaped cylinder (SVSC) is investigated and compared to that of a circular cylinder at Re 
Chen, Guanjiang   +5 more
core   +4 more sources

Cylinder seal (3D Scan, MK&G: 1967.82) [PDF]

open access: yes, 2020
ID: 1967.82 Object type: Cylinder seal (Enthroned goddess holds a lying bull, two standing gods) Date/Period: Akkad II–III, c. 2280–2180 BC Material: Aragonit Measurements: 3.26 cm (height); 1.74 cm (diameter) Language: Museum/Collection: Museum für ...
Werner, Eric
core   +1 more source

Development of Powered Support Hydraulic Legs with Improved Performance [PDF]

open access: yesE3S Web of Conferences, 2019
The paper gives a description of the technical solution for the design of a hydraulic leg piston for mechanized roof supports. This technical solution allows the sealing gap to remain almost constant in a wide range of pressures of the working fluid ...
Buyalich Gennady   +3 more
doaj   +1 more source

Design and performance analysis of a novel face gas seal [PDF]

open access: yes, 2006
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The scope of this work carried two objectives, each focusing on theoretical model development, performance prediction and experimental evaluation of two ...
Roberts-Haritonov, Lev
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Effect of the orientation of the harbor seal vibrissa based biomimetic cylinder on hydrodynamic forces and vortex induced frequency

open access: yesAIP Advances, 2017
The present study considered the geometric disturbance inspired by a harbor seal vibrissa of which undulated surface structures (HSV) are known as a detecting device to capture the water movement induced by prey fish.
HyoJu Kim, Hyun Sik Yoon
doaj   +1 more source

Metsamor: report after the 2019 season [PDF]

open access: yesPolish Archaeology in the Mediterranean, 2020
The 2019 season in Metsamor confirmed the functioning of the settlement in the Urartian period. House II, discovered during the fieldwork, is the first architectural structure built at the beginning of the Early Iron Age period which, after some possible
Krzysztof Jakubiak
doaj   +1 more source

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