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Journal articles on the topic 'Gaskets Testing'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

W. S., Widodo, R. Soenoko, M. A. Choiron, and A. A. Sonief. "Sealing performance analysis of composite gaskets made of silicone rubber filled with ramie natural fibers." Journal of Mechanical Engineering and Sciences 13, no. 4 (2019): 6178–94. http://dx.doi.org/10.15282/jmes.13.4.2019.28.0484.

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Silicon rubber gaskets are commonly used in many industries for low pressure sealing conditions only. The research studies about the sealing performance improvement of a novel composite gasket made of the silicone rubber filled with ramie natural fibers in a bolted joint connection. In this research the sample of gasket consists of 4 different types of gasket i.e. a pure silicone rubber gasket and the silicone rubber composite gasket with 1, 2 and 3 layers of ramie fiber woven. The gaskets are tested using a water pressure testing equipment with a variation of internal fluid pressure and diffe

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Chen, Jiayan, Zhenyu Zhang, Lu Wang, and Qiang Wang. "Evaluation of Gasket Surface Contact Stress Uniformity Based on Gray-Level Co-Occurrence Matrix." Applied Sciences 12, no. 21 (2022): 11110. http://dx.doi.org/10.3390/app122111110.

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Due to the high demand for compression recovery tests of metal gaskets, it is difficult to provide and evaluate uniform stress on metal gaskets. To effectively evaluate the uniformity of surface stress on a metal gasket, we propose a method of evaluating gasket surface stress based on gray-level co-occurrence matrix theory. Angular second moment and entropy are selected as the main characteristic parameters, and the evaluation indexes (f1 and f2) are proposed. The analysis is based on finite element calculation under different parameters of a gasket test rig. The angular second moment and entr

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Wang, Min, Xianlei Fu, Zheyuan Jiang, Chi Che, Ningjun Jiang, and Yanjun Du. "Swelling Behavior and Flow Rates of a Novel Hydrophilic Gasket Used in Composite Geomembrane Vertical Cutoff Walls and Infrastructures Exposed to Contaminated Groundwater." Buildings 12, no. 12 (2022): 2207. http://dx.doi.org/10.3390/buildings12122207.

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The swelling capacity of novel hydrophilic gaskets used in geomembrane cutoff walls and infrastructures is critical for decreasing the flow rates of contaminated groundwater. This study investigated the swelling behavior, relaxation characteristics, flow rates, and micro-morphology of a hydrophilic gasket with different testing liquids. The radial swelling tests were performed using a device modified from single-lever consolidation instrument. A flow rates model apparatus was manufactured and employed to measure the flow rates of the poor-sealing hydrophilic gasket. According to the test resul

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4

Kunkel, G. M. "Shielding Effectiveness of EMI Gasketed Joints." Measurement and Control 24, no. 9 (1991): 282–85. http://dx.doi.org/10.1177/002029409102400903.

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EMI gaskets are used extensively by the electrical/electronic engineering community to assist in inhibiting the flow of radiated electromagnetic fields into and out of electronic equipment. Shielding effectiveness tests are used extensively by the manufacturers of EMI gaskets to grade their products. The assumption made by the design engineering community is that the shielding effectiveness as presented in the data is what they will receive in their equipment. This assumption is not true due to the errors associated with the shielding effectiveness testing of the gaskets where errors of as muc

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Ibragimov, Farhod, Ortiq Abzoirov, and Lola Zhamolova. "Tension testing of steel welded belts of the saw gaskets of a linter machine." E3S Web of Conferences 390 (2023): 06015. http://dx.doi.org/10.1051/e3sconf/202339006015.

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The results of tensile testing of steel welded belts of saw blades of a linter machine are presented in the article. A universal testing machine was used to find the tensile stability of steel welded belts of saw gaskets of a linter machine. The results of tensile tests on the study of steel welded belts of gaskets with a thickness of 1.5 mm and 2 mm using electric arc welding and kemppi welding (a carbon dioxide welding technology) showed that in order to stretch welded belts up to 5 mm, 2820 N is necessary for a thickness of belts of 1.5 mm for electric arc welding, and 2900 N for kemppi; wi

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Wang, Quan, Zhenyu Zhang, Jiayan Chen, and Lu Wang. "Structure optimization design of gasket test rig based on response surface model." International Journal of Metrology and Quality Engineering 15 (2024): 11. http://dx.doi.org/10.1051/ijmqe/2024009.

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In order to enhance the temperature regulation response speed of the gasket test rig and reduce the hysteresis of the temperature control system, structural optimization is implemented in the hardware part of the test rig. Firstly, a multi-physical field coupling method is employed for comprehensive performance testing of high-temperature and high-pressure gaskets, establishing a heat-fluid-solid coupling simulation and analysis model based on ANSYS. Then, internal temperature distribution of the gasket test device is calculated considering initial and boundary conditions. Next, data is collec

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7

Hosseini, Payam, Sultan Alhomair, Zahra Faeli, et al. "Degradation Model for the Tensile Strength of PVC and Rubber Gasket Materials Exposed to Benzene and PCE-Saturated Aqueous Solutions." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 2 (2020): 274–83. http://dx.doi.org/10.1177/0361198120906126.

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In this paper, a tensile strength degradation model is developed for polyvinyl chloride (PVC) pipe and three rubber gasket materials commonly used in stormwater drains and wet utilities; the degradation model considers exposure to a single contaminant at its saturation level. The contaminant considered included benzene and tetrachloroethylene (PCE) because of their prevalence. The materials considered are unplasticized Polyvinyl chloride (u-PVC) utilized as the pipe material, and three types of rubber gaskets: Polychloroprene (Neoprene-CR), Acrylonitrile (nitrile) butadiene rubber (Buna-N), an

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8

Walczak, R., J. Pawlicki, and A. Zagórski. "Tightness and Material Aspects of Bolted Flange Connections With Gaskets of Nonlinear Properties Exposed to Variable Loads." Archives of Metallurgy and Materials 61, no. 3 (2016): 1409–16. http://dx.doi.org/10.1515/amm-2016-0231.

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Abstract The paper presents the problems regarding bolted flange connections with gaskets used in chemical, petrochemical and energy industry. The aim of the research is to present state of knowledge regarding pipelines and apparatus in industrial installations and rules and regulations regarding flange connections tightness. Additionally a calculation example regarding flange connection according to ASME VIII DIV 1 requirement and then detailed Finite Element Analysis presented; impact of nonlinear material properties (gasket loading unloading curves) on the connection tightness for complex l

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Jaszak, Przemysław, and Łukasz Walencki. "Testing of the gaskets at liquid nitrogen and ambient temperature." Open Engineering 8, no. 1 (2018): 329–36. http://dx.doi.org/10.1515/eng-2018-0036.

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Abstract The paper presents the results of the leakage measurements of bolted flanged joints operating at temperature of liquid nitrogen (77K) and ambient temperature. Three types of static gasket were tested. The results were presented in the form of a helium leakage rate as a function of its pressure. The measured data was discussed and compared with the leakage results obtained at the ambient temperature.

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Kobayashi, Takashi, Ryosuke Nogi, Koji Sato, and Syugo Goto. "Consideration of test methods for testing sealing behavior of gaskets." Proceedings of Yamanashi District Conference 2018 (2018): YC2018–082. http://dx.doi.org/10.1299/jsmeyamanashi.2018.yc2018-082.

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11

Zhao, Jinghui, Huijin Guo, Shaobo Ping, et al. "Research on Design and Optimization of Large Metal Bipolar Plate Sealing for Proton Exchange Membrane Fuel Cells." Sustainability 15, no. 15 (2023): 12002. http://dx.doi.org/10.3390/su151512002.

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The sealing system, as the most important load-bearing component, is a critical part of the stack assembly in a proton exchange membrane fuel cell (PEMFC). Currently, flat or single-peak sealing gaskets are commonly used for large metal bipolar plate sealing, which can easily cause problems such as significant internal stress and distortion displacement. In order to solve this problem, an innovative double-peak sealing gasket structure is proposed. Based on the Mooney–Rivlin constitutive model, the impact of the sealing material hardness, friction coefficient, and compression ratio on the seal

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12

Rosentel, William, and Peter Holst. "Case study: Compilation of doorwall designs for speech privacy." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 264, no. 1 (2022): 538–45. http://dx.doi.org/10.3397/nc-2022-769.

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A common complaint in offices is meetings within enclosed rooms disrupting nearby open workstations or poor speech privacy to circulation corridors. In this scenario, occupant satisfaction depends on multiple factors, including sound isolation of the wall, door, glazing, and the background noise levels. Using experience from several projects with collected measurement data, this presentation will review various door-wall design scenarios with post-construction testing results and conditions where day-two improvements were implemented to meet client standards. The limiting factor in sound isola

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Noda, Nao-Aki, Masato Nagawa, Fumitaka Shiraishi, and Akifumi Inoue. "Sealing Performance of New Gasketless Flange." Journal of Pressure Vessel Technology 124, no. 2 (2002): 239–46. http://dx.doi.org/10.1115/1.1464876.

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This paper deals with a new seal system between two flanges without using gaskets. The system includes a groove and an annular lip that is held by one of the flange with its highest point in contact with the other flange to form a seal line when the flanges are assembled. The condition whether the system leaks or not depends on the shape and dimension of the annular lip and its deformation during the contact. In this study, several gasketless flanges are prepared with different lip dimensions to investigate the contact and sealing condition through an experimental and FEM analyses. The analyse

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Rahmat, Bahtiar, Mohammad Burhan Rubai Wijaya, Fahmy Zuhda Bahtiar, Yuris Bahadur Wirawan, and Katiko Imamul Muttaqin. "EFFECT OF CYLINDER HEAD GASKET ADDITION AND VARYING OCTANE NUMBER GASOLINE TO INTERNAL COMBUSTION ENGINE PERFORMANCE." Media Mesin: Majalah Teknik Mesin 25, no. 1 (2024): 50–63. http://dx.doi.org/10.23917/mesin.v25i1.3266.

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The aim of this research was to investigate the different impacts of compression pressure on power and torque outputs using gasoline RON 92, RON 95, and RON 100. The study involved experiments using a single-cylinder motorcycle engine with a capacity of 125 cm. The selection of this type of engine is based on the popularity of vehicles in Indonesia that use a single-cylinder engine with a capacity of 125 cm. To modify the compression pressure, variations in the number of gaskets were applied to the cylinder head, with quantities of 1 and 3 gaskets. Dynamometer tests were conducted to measure t

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15

Biedermann, Maurus, Katell Fiselier, and Koni Grob. "Testing migration from the PVC gaskets in metal closures into oily foods." Trends in Food Science & Technology 19, no. 3 (2008): 145–55. http://dx.doi.org/10.1016/j.tifs.2007.08.008.

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Trnka, Pavel, Jaroslav Hornak, Magdalena Trnkova, et al. "Compatibility Testing of New Insulating Fluids and Materials in Distribution Transformer." Energies 18, no. 7 (2025): 1831. https://doi.org/10.3390/en18071831.

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The introduction of a new insulating oil or, for instance, a new type of insulation or sealing into a transformer necessitates tests for material compatibility. Compatibility tests of liquids with the structural internal materials of transformers are conducted to prevent undesired interactions between insulating fluids and the formation of products that could lead to the generation of undesirable ions, sediments, or chemical compounds that result in a reduction in the dielectric property performance of the fluid. This includes chemical reactions (hydrolysis, hydrogenation, oxidation, formation

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17

Gil, P., J. Fernandes, M. M. Neves, and Luís G. Reis. "Suitability of Corkrubber Gaskets in Gasoline-Ethanol Blends." Materials Science Forum 636-637 (January 2010): 266–72. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.266.

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The increasing use of biofuels, namely blends of gasoline with ethanol, requires the identification of its impact on the fuel admission components of internal combustion engines that have not been specially design to work with high levels of ethanol. This paper provides a discussion on performance testing of corkrubber gaskets from a commercial company (ACC – Amorim Cork Composites) to seal these engines using gasoline and gasoline-ethanol blends. In order to evaluate the chemical compatibility of four corkrubber composites, several samples were immersed in different blends of gasoline with et

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18

Staf, Marek, Daniel Tenkrát, and Tomáš Hlinčík. "Apparatus for testing He leakage through flange gaskets at elevated pressure and temperature." Progress in Nuclear Energy 139 (September 2021): 103831. http://dx.doi.org/10.1016/j.pnucene.2021.103831.

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Nasrullah, Hamid, Bahtiar Wilantara, and Sulitia Aji Tri Budi Utomo. "Reconditioning and Testing of the 1984 Toyota Rino Diesel Engine." Jurnal E-Komtek (Elektro-Komputer-Teknik) 6, no. 2 (2022): 322–26. http://dx.doi.org/10.37339/e-komtek.v6i2.1074.

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The purpose of this research is to get a clear picture of the process of reconditioning and testing the 1984 Toyota Rino diesel engine. And to find out which components must be renovated for excellent engine performance. This research was conducted at the Piksi Ganesha Polytechnic Laboratory of Indonesia. The research method used is qualitative. The result of the reconditioning process is that several diesel engine components must be replaced in gaskets, air, and fuel filters. The results of testing the diesel engine Toyota Rino 1984 are: 1) Injector test, all injectors’ functions should run w

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20

MOHAMAD RIVAI and Yanto. "Uji Tekanan pada Sambungan Las Sistem Perpipaan Lepas Pantai Menggunakan Metode Tes Pneumatik." Jurnal Praktik Keinsinyuran 2, no. 2 (2025): 109–15. https://doi.org/10.25170/jpk.v2i2.6335.

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This article presents a case study evaluating the integrity of weld joints in offshore piping systems through pneumatic pressure testing. This work was conducted on an offshore construction project where pressure testing was performed on an LNG piping system prior to commissioning. The testing process commenced with equipment preparation and nitrogen injection into the piping system until a test pressure of 11.5 barg was reached, followed by a 30-minute holding period and visual inspection of all weld joints using a bubble test. Additionally, this article discusses the importance of safety zon

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21

Zhen, Jinming, Yunxiang Han, Huabao Wang, et al. "High Temperature Friction and Wear Behavior of PTFE/MoS2 Composites." Lubricants 11, no. 8 (2023): 312. http://dx.doi.org/10.3390/lubricants11080312.

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High performance polymer matrix composites with low friction and wear rate are of urgent requirement in sliding bearings and gaskets. In this study, the PTFE/MoS2 composites were prepared and the effect of testing temperature on the tribological properties were investigated. Results show that the friction coefficient and wear rate are approximately (0.14–0.19) and (4.18–13.38 × 10−4 mm3/Nm) at testing temperatures from 25 to 250 °C, respectively. At testing temperatures above 200 °C, the coefficient of friction of the composite with the addition of MoS2 is lower than that of pure PTFE, while t

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22

Chen, Kuen-Suan, Guo-Ping Ye, Chun-Min Yu, and Chun-Hung Yu. "Construct the Optimum Process Model for Transistor Gaskets with Six-Sigma DMAIC." Applied Sciences 13, no. 12 (2023): 6895. http://dx.doi.org/10.3390/app13126895.

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The improvement process of six-sigma DMAIC refers to the process that the industry performs to enhance process quality via the following five procedures: (1) define, (2) measure, (3) analyze, (4) improve, and (5) control. It is a common tool used in the industry to ameliorate and enhance process quality. In addition, the process capability index is a tool that the industry most frequently uses to measure process quality. Though many studies have discussed six-sigma methods, none of the specific theoretical models could be provided as a reference for the above five DMAIC improvement steps, maki

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23

Egamberdiev, F. O., and O. Ya Kholmuratov. "THEORETICAL CALCULATION AND EXPERIMENTAL TESTING OF ARCUATE PILES FOR EQUIPMENT CLEANING COTTON FROM MINOR IMPURITIES." Journal of Science and Innovative Development 6, no. 6 (2023): 67–76. http://dx.doi.org/10.36522/2181-9637-2023-6-7.

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This article provides information on the review and solutions for a piece of equipment destined for cleaning seed cotton from minor and major impurities used in cotton ginning enterprises. The advantages and disadvantages of the equipment are being based on a structural analysis. Moreover, the study covers issues of the effects of the cleaning efficiency indicators of the seed cotton cleaning equipment on cotton harvesting strategies. According to the review, the scientific research on improving the quality indicators of seed cotton is being considered very relevant. A better design of rubber

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Hanušová, Kristýna, Aleš Rajchl, Lenka Votavová, Jaroslav Dobiáš, and Ingrid Steiner. "Testing the influence of various conditions on the migration of epoxidised soybean oil from polyvinylchloride gaskets." Food Additives & Contaminants: Part A 30, no. 11 (2013): 1963–75. http://dx.doi.org/10.1080/19440049.2013.825818.

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Du, Wenfeng, Jinchao Gu, Guilin Sheng, Guang Guo, Yongrun Zhao, and Zhijian Liu. "Enhancing the Sealing Performance of Bolted Ball Joints by Gaskets: Numerical Simulation and Experiment." Journal of Marine Science and Engineering 11, no. 11 (2023): 2050. http://dx.doi.org/10.3390/jmse11112050.

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With the increasing utilization of bolted ball joint steel mesh structures in offshore floating platforms and deep-sea fish cages, the issue of seawater infiltrating the joints and members through the installation gaps of the bolted ball joint, leading to subsequent corrosion, has become increasingly prominent. This article presents an innovative method to improve the sealing performance of bolted ball joints. The approach involves creating sealed surfaces within the contact gaps between the sleeve and connecting components by adding circular grooves and sealing washers to both ends of the sle

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MOSTELLER, T. M., and J. R. BISHOP. "Sanitizer Efficacy Against Attached Bacteria in a Milk Biofilm." Journal of Food Protection 56, no. 1 (1993): 34–41. http://dx.doi.org/10.4315/0362-028x-56.1.34.

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Pseudomonas fluorescens, Yersinia enterocolitica, and Listeria monocytogenes were shown to readily attach to both rubber and Teflon® surfaces. Sanitizer efficacy testing done in the laboratory with nonadherent bacteria could lead to false assumptions as to the sanitizer's true effectiveness under processing conditions where cells may be attached. The objectives in this study were: (a) evaluate the efficacy of in-use concentrations of sanitizers on bacteria attached to gasket materials, (b) compare bacterial attachment to rubber and Teflon® gaskets, (c) examine different methods of enumeration,

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Pang, Shumeng, Weijun Tao, Yingjing Liang, Shi Huan, Yijie Liu, and Jiangping Chen. "Development of a True-Biaxial Split Hopkinson Pressure Bar Device and Its Application." Materials 14, no. 23 (2021): 7298. http://dx.doi.org/10.3390/ma14237298.

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Although highly desirable, the experimental technology of the dynamic mechanical properties of materials under multiaxial impact loading is rarely explored. In this study, a true-biaxial split Hopkinson pressure bar device is developed to achieve the biaxial synchronous impact loading of a specimen. A symmetrical wedge-shaped, dual-wave bar is designed to decompose a single stress wave into two independent and symmetric stress waves that eventually form an orthogonal system and load the specimen synchronously. Furthermore, a combination of ground gaskets and lubricant is employed to eliminate

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Yasinee, Wuttison, Thongyai Supakanok, Wacharawichanant Sirirat, and Piyasan Praserthdam. "Study on the Properties of Blends between Acrylonitrile-Butadiene Rubber and Acrylonitrile-Butadiene-Styrene or Poly(Styrene-co-Acrylonitrile)." Advanced Materials Research 812 (September 2013): 192–97. http://dx.doi.org/10.4028/www.scientific.net/amr.812.192.

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Acrylonitrile-butadiene rubber (NBR) or nitrile rubber is an unsaturated copolymer of butadiene and acrylonitrile. NBR has been widely used for fuel hoses, seals and gaskets due to its excellent oil and fuel resistance. Aiming to develop NBR which has resistance to oxygenated solvent, NBR with acrylonitrile content of 34 wt%, was blended with Acrylonitrile-butadiene-styrene (ABS) and Poly (Styrene-co-Acrylonitrile) (SAN) as binary polymer systems. The NBR/ABS and SAN blends were prepared by mechanical blending in the composition of 80/20, 70/30 and 60/40 w/w. The effects of ABS or SAN content

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Fankhauser-Noti, Anja, and Koni Grob. "Migration of plasticizers from PVC gaskets of lids for glass jars into oily foods: Amount of gasket material in food contact, proportion of plasticizer migrating into food and compliance testing by simulation." Trends in Food Science & Technology 17, no. 3 (2006): 105–12. http://dx.doi.org/10.1016/j.tifs.2005.10.013.

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Muhammad Revaldi Pratama Haksu Jeon, Raffy Arrasyfazra Prayogo, Bhima Sakti Araffat, and Bambang Sutarmadji. "Analisis Penyebab dan Dampak Kebocoran Bahan Bakar terhadap Keselamatan Operasional Penerbangan." Venus: Jurnal Publikasi Rumpun Ilmu Teknik 3, no. 3 (2025): 35–44. https://doi.org/10.61132/venus.v3i3.845.

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International airports are complex work environments with unique occupational health and safety risks. As hubs of intensive transportation activities, airports involve various operations, including flight services, passenger handling, cargo management, and fuel operations. Early detection of fuel leaks is crucial to ensure the aircraft’s fuel system is free from leaks, blockages, or potential fire hazards. This study aims to analyze the causes of fuel leakage and identify appropriate mitigation measures, using observation and literature review methods. The findings indicate that fuel leakage o

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Donaldson, Keith W., and Akihiro Kajiyama. "Operationally Ready Advancements in Oil Free Corrosion Control for Advanced Materials." Key Engineering Materials 843 (May 2020): 153–58. http://dx.doi.org/10.4028/www.scientific.net/kem.843.153.

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Operationally ready is a key component to effective management of equipment, spares and systems through manufacturing, shipment and transport, meaning that products are impacted by how they stored, shipped and staged. That means no rust, no degradation and the ability to utilize the equipment or parts quickly, with no cleaning or additional work required. Significant advancements have been made in oil free, volatile free anti-corrosion protection to aid this. These advancements are in the form of plastics, laminates, canvas, woven products and shrink films that can be used to provide long term

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Rahmani, Shirullah, Ruhullah Hanif, and Ghulam Rabani Neyazi. "The Use of Rice Husk Ash as a Reactive Filler in the PSO/EP Resin Composite for Potential Automotive Applications." European Journal of Applied Science, Engineering and Technology 3, no. 3 (2025): 191–201. https://doi.org/10.59324/ejaset.2025.3(3).12.

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The research studies about the development and characterization of a rice husk ash (RHA)-reinforced polysulfide oligomer/epoxy resin (PSO/EP) composite for use in automotive applications. To improve mechanical and chemical properties, RHA is a silica-rich agricultural byproduct which was incorporated at different loadings (0.5,1, 2 wt%). The composite was prepared using a modified thiokol method for PSO and with universal EDP-2 epoxy resin which was supplied by Altai Prom Polymer. Many characterizations have been done. Crosslinking between the thiol groups of PSO and epoxy resin was confirmed

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Rahmani, Shirullah, Ruhullah Hanif, and Ghulam Rabani Neyazi. "The Use of Rice Husk Ash as a Reactive Filler in the PSO/EP Resin Composite for Potential Automotive Applications." European Journal of Applied Science, Engineering and Technology 3, no. 3 (2025): 191–201. https://doi.org/10.59324/ejaset.2025.3(3).12.

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The research studies about the development and characterization of a rice husk ash (RHA)-reinforced polysulfide oligomer/epoxy resin (PSO/EP) composite for use in automotive applications. To improve mechanical and chemical properties, RHA is a silica-rich agricultural byproduct which was incorporated at different loadings (0.5,1, 2 wt%). The composite was prepared using a modified thiokol method for PSO and with universal EDP-2 epoxy resin which was supplied by Altai Prom Polymer. Many characterizations have been done. Crosslinking between the thiol groups of PSO and epoxy resin was confirmed

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Lu, Ming, Yuntao Li, Pingtao Yan, Qiang Li, Jian Shao, and Ling Zheng. "Material testing and low cycle fatigue life analysis of supercharger gasket." Journal of Physics: Conference Series 2819, no. 1 (2024): 012061. http://dx.doi.org/10.1088/1742-6596/2819/1/012061.

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Abstract Aiming at the cracking problem of the supercharger metal gasket in the development stage of an engine, an analysis method is established. Firstly, the gasket is assumed to be a spring unit, and transient three-dimensional analysis is carried out to obtain the gap movement of the gasket during the whole cycle process. Then, a detailed two-dimensional model of the gasket is established to calculate the low-cycle fatigue life of the gasket structure through loading temperature and gap movement. The data of tensile strength and elastic modulus at different temperatures were obtained by te

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Zarzour, Mark, and John Vance. "Experimental Evaluation of a Metal Mesh Bearing Damper." Journal of Engineering for Gas Turbines and Power 122, no. 2 (2000): 326–29. http://dx.doi.org/10.1115/1.483214.

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Metal mesh is a commercially available material used in many applications including seals, heat shields, filters, gaskets, aircraft engine mounts, and vibration absorbers. This material has been tested by the authors as a bearing damper in a rotordynamic test rig. The test facility was originally used to support the design of a turboprop engine, developing squirrel cages and squeeze film dampers for both the gas generator and power turbine rotors. To design the metal mesh damper, static stiffness and dynamic rap test measurements were first made on metal mesh samples in a specially designed no

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ARTAKHINOVA, S. F., A. I. ISAKOVA, and N. N. PETROVA. "INFLUENCE OF COLLAGEN HYDROLYSATE ON VULCANIZATION KINETICS AND CROSS-LINKING DENSITY OF ELASTOMERS BASED ON BNKS-18 NITRILE BUTADIENE RUBBER." Herald of Technological University 27, no. 3 (2024): 47–51. http://dx.doi.org/10.55421/1998-7072_2024_27_3_47.

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The effect of collagen hydrolysate (CH) obtained from the swim bladder of northern fish species on the set of operational properties of elastomers based on BNKS-18 nitrile butadiene rubber with acrylonitrile content of 18 wt.% was studied. The vulcanization kinetics of elastomeric blends were determined on a D-RPA 3000 rotorlessrheometer (MonTech, Germany). Tensile strength and elastic properties of vulcanizates were determined on an Autograph AGS-JSTD testing machine (Shimadzu, Japan). Frost resistance was evaluated by the value of frost resistance coefficient according to elastic rebound aft

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Galikhanov, M. F., D. M. Akhmedzyanova, and N. R. Nikitin. "The Development and the Study of the Properties of Hydrosorption Material Based on a Blended Thermoplastic Vulcanisate." International Polymer Science and Technology 44, no. 8 (2017): 9–14. http://dx.doi.org/10.1177/0307174x1704400802.

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Hydrosorption thermoplastic vulcanisates (TPVs) with a controllable swelling rate have been developed. They contain low-density polyethylene (LDPE), nitrile butadiene rubber (NBR), and sodium carboxymethyl cellulose (Na-CMC) – a water-soluble polymer (WSP). They were mixed on a laboratory mill in two stages and vulcanised at a temperature of 170°C. At the first stage, the NBR with a vulcanising system and carbon black were mixed with the WSP at 50°C, and at the second stage this composite was mixed with the polyethylene (PE) at 140°C. The hydrosorption, deformation and strength, and electret p

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Hansen, Brandon, Cody Coleman, Yi Zhang, and Maria Seale. "Text Classification and Tagging of United States Army Ground Vehicle Fault Descriptions in Support of Data-Driven Prognostics." Annual Conference of the PHM Society 12, no. 1 (2020): 8. http://dx.doi.org/10.36001/phmconf.2020.v12i1.1154.

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The manner in which a prognostics problem is framed is critical for enabling its solution by the proper method. Recently, data-driven prognostics techniques have demonstrated enormous potential when used alone, or as part of a hybrid solution in conjunction with physics-based models. Historical maintenance data constitutes a critical element for the use of a data-driven approach to prognostics, such as supervised machine learning. The historical data is used to create training and testing data sets to develop the machine learning model. Categorical classes for prediction are required for machi

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Leader, Jared O., Mark R. Walluk, Michael G. Waller, and Thomas A. Trabold. "Optimizing The Hot-Press Procedure Of High-Temperature Proton Exchange Membrane Fuel Cells For Adhesion Strength And Conductivity." ECS Meeting Abstracts MA2022-01, no. 37 (2022): 1644. http://dx.doi.org/10.1149/ma2022-01371644mtgabs.

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As society considers alternatives to energy systems based on fossil fuel combustion, high-temperature proton exchange membrane (HT-PEM) fuel cells may play an important role in our future energy and transportation portfolio. When compared to low-temperature proton exchange membrane (LT-PEM) fuel cells, HT-PEM technology offers enhanced electrode kinetics, simplified water management, and most notably increased tolerance to fuel impurities such as carbon monoxide. However, compared to more conventional LT-PEM systems, less is known about the durability, performance, and fabrication of HT-PEM ma

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Yamazaki, N., Y. Taniguchi, and O. Kaburaki. "Testing the Central Engines in AGNs." Symposium - International Astronomical Union 188 (1998): 453–54. http://dx.doi.org/10.1017/s0074180900115992.

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It is very important to estimate the relationship between the central blackhole mass MBH and bolometric luminosity Lbol of AGNs, because such a relation may be useful to judge the validity of various models for AGNs (Koratkar & Gaskell 1991, hereafter KG91). The predictions of various models are summerized in Table 1, where B is the magnetic field around the central object.

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Liu, Ying Chun, and Yun Zuo. "Structural Failure Analysis of Shaft of Wobbly and Attrited Testing Equipment." Applied Mechanics and Materials 224 (November 2012): 105–8. http://dx.doi.org/10.4028/www.scientific.net/amm.224.105.

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In order to research the fatigue strength of gasket which is with new composite material in one plane, we designed and manufactured special testing equipment. The material of shaft of testing equipment is 30CrMnSi. In the experiment, the 30CrMnSi shaft was broken into two parts by suddenly. By structural analysis, static analysis and heat treatment analysis for shaft, we get the reason of fracture for shaft finally. The problem solved make the test goes well and can help design and manufacture testing equipment in the future.

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Kemppainen, Erno, Iris Dorbandt, Karuppasamy Dharmaraj, et al. "Electrochemical Impedance Analysis of Direct Ammonia Fuel Cell Operation and Clamping Effects." ECS Meeting Abstracts MA2023-02, no. 37 (2023): 1799. http://dx.doi.org/10.1149/ma2023-02371799mtgabs.

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In addition to being an essential chemical for fertilizers, ammonia can also be used as a hydrogen carrier or directly as a fuel. Compared to hydrogen, the main advantages are that ammonia can be liquefied in mild conditions and the technology for ammonia shipping and pipelines already exists. Compared to carbon-based synthetic fuels, no carbon dioxide is produced by the oxidation, only water and nitrogen. The theoretical voltage of a direct ammonia fuel cell (DAFC) is 1.17 V, nearly equal to the 1.23 V of hydrogen fuel cells (HFC) but a central drawback is the slow kinetics of the ammonia oxi

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Abid, M. "Performance testing of gasketed flange joint under combined loading." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 223, no. 2 (2008): 91–95. http://dx.doi.org/10.1243/09544089jpme221.

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This technical note presents joint strength and sealing capability of a gasketed flange joint using extensive experimental studies with different load combinations. Actual joint load capacity is determined under both the design and proof test pressure with maximum additional external loading (axial and bending) that can be applied for safe joint performance. In addition, application of combined load is also discussed in the light of equivalent pressure approach.

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Park, Soo-Hyun, Akeem Bayo Kareem, Woo Jeong Joo, and Jang-Wook Hur. "FEA Assessment of Contact Pressure and Von Mises Stress in Gasket Material Suitability for PEMFCs in Electric Vehicles." Inventions 8, no. 5 (2023): 116. http://dx.doi.org/10.3390/inventions8050116.

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Ensuring the safety of electric vehicles is paramount, and one critical concern is the potential for hazardous hydrogen fuel leaks caused by the degradation of Proton-Exchange Membrane Fuel Cell (PEMFC) gasket materials. This study employs advanced techniques to address this issue. We leverage Finite Element Analysis (FEA) to rigorously assess the suitability of gasket materials for PEMFC applications, focusing on two crucial conditions: ageing and tensile stress. To achieve this, we introduce a comprehensive “dual degradation framework” that considers the effects of contact pressure and von M

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Qi, Jun, Menjun Hu, Xing Yang, et al. "Optimization study on nuclear-grade heat exchanger metal C-type gasket seal." Journal of Physics: Conference Series 3021, no. 1 (2025): 012062. https://doi.org/10.1088/1742-6596/3021/1/012062.

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Abstract In a specific nuclear power plant, the metal C-type sealing ring is utilized to seal the tube side of the normal residual heat discharge heat exchanger. The original design specified silver as the outer layer material; however, silver undergoes activation under neutron irradiation, leading to increased personnel radiation exposure and extended maintenance periods. Following an in-depth investigation, it was proposed to replace the outer layer with pure nickel (N6). Given the unique structure of this sealing ring, altering the sealing layer material poses significant challenges to its

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Weng, Fang-Bor, Ay Su, Yur-Tsai Lin, Guo-Bin Jung, and Yen-Ming Chen. "Novel Testing Method for Fuel Cell Hardware Design and Assembly." Journal of Fuel Cell Science and Technology 2, no. 3 (2005): 197–201. http://dx.doi.org/10.1115/1.1928929.

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A simple, low-cost testing method is proposed for fuel cell hardware development. A perforated aluminum foil with an array of small holes covered with carbon paper or cloth replaces the membrane electrode assemblies to test the contact resistance and gas permeability of the carbon paper. Practical fuel cells of 50cm2 reaction area with different gasket thicknesses and compressed pressures are tested for performance. The results of ohmic resistance and permeability of compressed carbon paper indicate strong relevance to cell performance, demonstrating that this novel testing method is valuable

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Gilani, Amir S., Andrew S. Whittaker, and Gregory L. Fenves. "Seismic Evaluation and Retrofit of 230-kV Porcelain Transformer Bushings." Earthquake Spectra 17, no. 4 (2001): 597–616. http://dx.doi.org/10.1193/1.1427316.

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Static and earthquake-simulator testing of two 230-kV, 3000A, Type-U transformer bushings manufactured in the mid 1980s by the General Electric (GE) Company was undertaken to evaluate both the seismic performance of bushings known to be vulnerable to damage from moderate earthquake shaking, and the efficacy of simple retrofit details. Both bushings survived earthquake shaking compatible with the IEEE spectrum for High Level qualification when mounted on a rigid frame. When mounted on a flexible frame, one 230-kV bushing was unable to sustain the High Level qualification shaking without oil lea

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Kosterina, A. V., and A. V. Teplyakova. "Evaluation of the Possibility of Controlling the Bolted Joints of Vessel Lids Using Ultrasonic Waves." LETI Transactions on Electrical Engineering & Computer Science 16, no. 10 (2023): 33–42. http://dx.doi.org/10.32603/2071-8985-2023-16-10-33-42.

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The aim of the work is to study the applicability of the acoustic method for monitoring the loosening of fasteners on vessel lids, based on the change in signal amplitude during reflection and transmission of ultrasonic waves through the interface between plates. In the course of the work, theoretical dependences of the change in the amplitude of the received signal with a change in the applied pressure were obtained for the case of a flange connection without an additional gasket and in the presence of a gasket made of various materials. It has been established that in the absence of acoustic

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Ma, Xiaoming, Xiaoyue Zhang, Chunguang Li, Yulin Wang, and Li Chen. "Failure analysis of one main wheel hub bolt fracture of A320 aircraft." Journal of Physics: Conference Series 2691, no. 1 (2024): 012027. http://dx.doi.org/10.1088/1742-6596/2691/1/012027.

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Abstract When an aircraft was performing flight tasks, it was found that one connecting bolt of No. 3 main wheel was missing during the short stop inspection. The bolt uses 148 ups and downs this time, and the use time is significantly lower than normal. It is inferred that the high probability of its fracture is not caused by long-term use, and it is speculated that the fracture reason is related to the quality of the bolt itself. Material analysis showed that there were no obvious abnormalities in the bolt material, and slight scratches were found near the bolt. The bolt is fatigue fracture

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Rachmat Sutjipto, Harrij Mukti K, and Kharisma Eka Dzulfiqar. "Analisis Kondisi Isolasi Pada Station Service Transformer (SST)." Elposys: Jurnal Sistem Kelistrikan 11, no. 2 (2024): 86–91. http://dx.doi.org/10.33795/elposys.v11i2.5186.

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There is an identified oil leak in SST Unit 1 at Paiton Power Plant, discovered after a fault indicator in Central Control Room. Visual inspection revealed that the gasket seal on the fastening bolts was damaged due to the seal reaching its lifetime limit. Continuous oil leaks degrade the transformer's oil, reducing its volume and impairing the transformer's cooling performance. The research aims to evaluate the insulation condition of the SST transformer before and after replacing the damaged gasket seal (repacking). This evaluation ensures the transformer's optimal performance and reliabilit

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