Results 21 to 30 of about 590,594 (262)

Study of the Brush Seal Design and Test Technology

open access: yesApplied Mechanics and Materials, 2011
Design and test technologies for brush seal are summarized in this paper. Test process under static and dynamic states for brush seal is introduced.
Ling He, Guang Tang, Ning Li
exaly   +2 more sources

Analysis of a tunnel failure caused by leakage of the shield tail seal system

open access: yesUnderground Space, 2020
This paper presents an analysis of a tunnel failure accident during shield tunnel construction on Foshan Metro Line 2 in China. The failure is caused by the leakage of the multilayer seal system, which consists of several brush seals at the tail of the ...
Chao Yu   +4 more
doaj   +1 more source

Temperature Field and Performance Analysis of Brush Seals Based on FEA-CFD and the Porous Medium of Anisotropic Heat Transfer Models

open access: yesEnergies, 2023
A brush seal is a type of contact sealing technology that generates a great amount of heat during operations. The heat can affect the seal’s performance and lifespan.
Xiaolei Song   +4 more
doaj   +1 more source

Study of Heat Transfer and Leakage Characteristics of Brush Seals Based on Local Temperature Non-Equilibrium Model

open access: yesMachines, 2022
In this study, to improve the accuracy of the brush seal heat transfer model, based on the finite volume method (FVM) coupled with the three-dimensional Reynold-averaged Naviers-Stokes equations (RANS) equations of the Local temperature non-equilibrium ...
Jiahao Zhang, Meihong Liu, Neng Peng
doaj   +1 more source

Stability and bifurcations of complex vibrations in a nonlinear brush-seal rotor system.

open access: yesChaos, 2023
A brush seal has the advantages of adapting to different vibration conditions and increasing the stability of the nonlinear rotor system. In this research, the stability and bifurcations of complex vibrations in a brush-seal rotor system are studied.
Yeyin Xu, R. Zhao, Y. Jiao, Zhao-Bo Chen
semanticscholar   +1 more source

Contact Force Analysis of a Rotor-Brush Seal System With Eccentricity and Airflow

open access: yesIEEE Access, 2019
The mechanics properties of brush seals are usually very complicated. Here, the contact force of a rotor-brush seal system was analyzed based on the bending deformation theory considering the interaction of eccentricity and flow induced force.
Yuan Wei, Zhaobo Chen, Shulin Liu
doaj   +1 more source

Numerical Analysis of Flow across Brush Elements Based on a 2-D Staggered Tube Banks Model

open access: yesAerospace, 2021
In order to improve efficiency in turbomachinery, brush seal replaces labyrinth seals widely in the secondary air system. A 2-d staggered tube bank model is adopted to simulate the gas states and the pressure character in brush seal, and computational ...
Xiaolei Song   +5 more
doaj   +1 more source

Insights Into Frictional Brush Seal Hysteresis

open access: yesVolume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, 2023
Brush seals offer a superior sealing effectiveness compared to labyrinth seals. However, widespread use of brush seals is constrained by deleterious behaviors such as pressure-stiffening and hysteresis.
H. Phan, Michael J. Pekris, J. Chew
semanticscholar   +1 more source

Estimation of the rotordynamic characteristics of a single brush seal using least-squares and instrumental variable methods under super-heated steam environment

open access: yesAdvances in Mechanical Engineering, 2020
The exact understanding of the dynamic characteristic of the seal is a crucial parameter for designing the system. This article presents an experiment that estimates the dynamic characteristics of a brush seal under a super-heated steam environment for a
Yunseok Ha   +3 more
doaj   +1 more source

Influence of hydro-pneumatic accumulator on the hydraulic drive of the brush work body of light type track machines [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2021
The main direction of improving the repair processes of all types and the current maintenance of the track is to reduce the time and labor costs with the highest possible level of mechanization and automation of all types of track work. At the same time,
Grinchar N.G., Bykov A.Yu.
doaj   +1 more source

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