Results 41 to 50 of about 116 (106)

Study on vibration characteristics of three-stage brush seal rubbing fault of a counter-rotating aerojet engine

Journal of Low Frequency Noise, Vibration and Active Control
In order to solve the rotor-three-stage brush seal rubbing fault problem during the test run of a counter-rotating aerojet engine, based on the Fast Fourier Transform (FFT), the three-dimensional waterfall diagrams and color maps of different vibration ...
Zhiliang Wang, Wei Zhao, Yingqun Ma, Binbin Liu, Xuesen Yang, Qingjun Zhao   +5 more
doaj   +1 more source

A Numerical Study of the Sealing and Interstage Pressure Drop Characteristics of a Four-Tooth Three-Stage Brush Combination Seal

Applied Sciences
Premature seal failure induced by the unevenness of interstage pressure distribution in multi-stage brush seals significantly compromises the sealing efficiency of Air-Turbo Rocket (ATR) engines operating under high-pressure (megapascal-level ...
Chao Gu, Yingqun Ma, Wei Zhao, Xiuming Sui, Bin Hu, Qingjun Zhao   +5 more
doaj   +1 more source

A flexible self-adaptive seal concept for sealing performance enhancement by controlling the flow contraction effect

Ain Shams Engineering Journal
Annular gas seals are critical components in turbomachines for restricting leakage and ensuring efficiency. Reducing seal clearance is the most direct method to minimize leakage.
Weirong Wu, Qianlei Gu, Wanfu Zhang, Hongyu Gao, Yucong Zhang, Mingjie Zhang   +5 more
doaj   +1 more source

Development and application of tail brush elastic test device

Scientific Reports
The shield tail brush loss elasticity is the key reason for the failure of shield tail seal. However, due to the limitation of test equipment, there is little research on the elastic properties of tail brush.
Jingkai Li, Jingbo Guo, Shaopu Yang, Mengze Han, Jie Li, Ziyue Zhang, Zifeng Ren, Jun Ge, Jinbo Liu   +8 more
doaj   +1 more source

Design of electron beam welded joints between stainless steel and Co-based superalloy: Revealing an incomplete γ → ε transformation mechanism

Journal of Materials Research and Technology
This study proposes a novel approach to electron beam welding of AISI 410L ferritic stainless steel and NS163 Co-based superalloy, exploring the mechanism of compositional influence on the γ → ε martensite transformation during rapid solidification ...
Xin Wen, Xinyu Gao, Shichang Qiao, Fengzhen Wang, Zhikang Xia, Na Li, Yongqiang Wang, Shuai Liu, Chao Yuan   +8 more
doaj   +1 more source

Overheating Of The L.O Standby Pump On The Main Engine Of MT. Klawotong

Jurnal Sains Teknologi Transportasi Maritim
The main engine Lubricating Oil (LO) standby pump is crucial for smooth ship operations. Therefore, it is essential that this equipment is well-maintained.
Agum Gymnastiar, Andy Hermanto, Mohammad Sapta Heriyawan   +2 more
doaj   +1 more source

Microbrush bristle remnants on the bonding surface using different adhesive systems by scanning electron microscope: An in vitro study

Dental Research Journal
Background: The shelf life of dental restorations relies primarily on the adhesion between tooth and restorative material. Numerous dental adhesive systems have been developed to play a crucial role in enhancing this adhesion.
Shraddha Padwal, Pradeep Shetty, Divya Dudulwar, Kiran Keswani, Vishwajit Lokhande, Manjiri Raje   +5 more
doaj   +1 more source

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Porosity Modeling of Brush Seals

Journal of Tribology, 1997
A new model for predicting leakage flows through the bristle pack of brush seals is developed. In the model, the bristle pack is treated as a porous medium. Good agreement is demonstrated between predictions from a one-dimensional form of the model and a wide range of experimental data available from the literature, for seals with a bristle pack to ...
Chew, JW, Hogg, SI
openaire   +3 more sources

Insights Into Frictional Brush Seal Hysteresis

Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, 2023
Abstract 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. For the latter, the bristles bend during the shaft incursion process and do not fully recover during the shaft retraction ...
Phan, Hien, Pekris, Michael, Chew, John   +2 more
openaire   +2 more sources

Brush Seal Hysteresis

48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2012
The use of Brush Seals continues to expand in both the Power Generation and the Aerospace markets and we continue to learn more about their functionality. This paper continues on from our previous papers and in particular AIAA 2002-3794 which examines, analytically and experimentally the effects of Hysteresis.
Peter Crudgington, Aaron Bowsher, Tracey Kirk, Jas Walia   +3 more
openaire   +1 more source