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Journal articles on the topic 'Cylinder sleeve'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Chavdarov, Anatoliy V., and Viatcheslav A. Denisov. "Developing technology of creating wear-resistant ceramic coating for internal combustion engine cylinder sleeve." Nexo Revista Científica 34, no. 04 (2021): 1420–30. http://dx.doi.org/10.5377/nexo.v34i04.12689.

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This paper presents the results of testing a wear-resistant ceramic coating on the work surface of an internal combustion engine (ICE) cylinder’s sleeve. A combined coating formation technology is described that consists in applying an aluminum layer to the sleeve’s work face by gas dynamic spraying and then covering this face with a ceramic layer by microarc oxidation (MAO). A tenfold reduction in the reinforced sleeve has been determined by the accelerated comparative wear rig tests of reference (new) sleeve-piston ring coupling specimens and reinforced specimens with a combined coating. The

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2

Salakhutdinov, I. R., A. A. Glushchenko, and A. L. Khokhlov. "THEORETICAL SUBSTANTIATION OF CAVITATION WEAR INTENSITY REDUCTION OF CYLINDER SLEEVE WALLS BY APPLICATION OF ANTI-CAVITATION COATING." Vestnik of Ulyanovsk state agricultural academy 204, no. 2(58) (2022): 18–24. http://dx.doi.org/10.18286/1816-4501-2022-2-18-24.

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One of the ways to increase service life of internal combustion engines is to reduce cavitation wear intensity of the outer wall of the cylinder sleeves. The most promising, at present, method is application of anti-cavitation coating on the outer surface of the cylinder sleeve. The aim of the research was to establish theoretical dependencies that allow to substantiate the properties and thickness of the anti-cavitation material applied to the outer wall of the cylinder sleeve. Theoretical studies of cavitation wear intensity along the destruction depth of the cylinder sleeve wall established

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3

Zhu, Wen Dong, Xu Dong Pan, Ye Li, and Wei Jie Huo. "Design of Hydraulic Locking Mechanism Based on Material Friction." Key Engineering Materials 667 (October 2015): 481–86. http://dx.doi.org/10.4028/www.scientific.net/kem.667.481.

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Hydraulic cylinders are the actuators used in driving and bearing heavy loads. In normal conditions, it is required to bear load steadily for long time. Due to the inevitable internal leakage of traditional hydraulic cylinder, the strict conditions of the applications are always hard to meet. The materials selecting of cylinder and lock sleeve is very important on a new type of locking mechanism. This paper presents the design of hydraulic locking mechanism based on material friction properties. The strength, elasticity, temperature coefficient, and the factors such as friction coefficient are

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4

Potakhov, D. A. "STRESSED-DEFORMED STATUS OF THE HANGING HYDROCYLINDER: INFLUENCE OF THE CONJUGATED ELEMENTS’ PAIRS." Russian Automobile and Highway Industry Journal 17, no. 1 (2020): 44–56. http://dx.doi.org/10.26518/2071-7296-2020-17-1-44-56.

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Introduction. The contact interaction of the associated elements of the hydraulic cylinder (piston with sleeve, guide sleeve with cylinder and rod) determines the reliability of the reciprocating hydraulic motor. Assessing the effect of gaps of articulated hydraulic cylinder elements is an urgent task in view of the fact that the formation of gaps is inevitable, since friction is always accompanied by tribological wear processes. The paper investigates the determination and assessment of the influence of the gaps of the hydraulic cylinders’ mating elements on the stress-strain state of the con

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5

Nazim Ibrahimov, Nazim Ibrahimov, and Maleyka Mammadova Maleyka Mammadova. "INCREASING THE CURRENCY RESISTANCE OF CYLINDER-PLASTING OF PYSTON PUMPS BY PLASMA METHOD." ETM - Equipment, Technologies, Materials 08, no. 04 (2021): 82–86. http://dx.doi.org/10.36962/etm0804202182.

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The article examines the study of increasing the wear resistance of the cylinder-sleeve of a piston pump using the developed technology of plasma spraying. Wear-resistant and durable coatings of nickel, chromium, molybdenum and tungsten were obtained on the surface of the piston pump cylinder-sleeve. A graph of the dependence of the coating thickness depending on the surface hardness of the cylinder-sleeve is presented. According to the graph, depending on the hardness, you can determine the wear resistance of the coating surface of the cylinder-sleeve. Keywords: piston pump, cylinder liners,

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6

Bashirov, R. J., and F. G. Amirov. "Method for Determining the Thermal State of the Cylinder Sleeve During Centrifugal Induction Sintering." Proceedings of Higher Educational Institutions. Маchine Building, no. 8 (749) (August 2022): 33–41. http://dx.doi.org/10.18698/0536-1044-2022-8-33-41.

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The temperature distribution in the ship engine cylinder sleeve during its heating and cooling is one of the most important factors affecting formation of the structure and properties of coatings in the process of cylinder recovery by the method of induction centrifugal sintering. The article discusses experimental studies, which allow presenting graphs of the temperature distribution over the diameters of the ship engine cylinder sleeve during its heating and cooling. The thermophysical properties of the sleeve were found to significantly affect the process of sintering powder materials. By v

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7

Gubin, E., S. Andriushchenko, and K. Mochalin. "Cylinder sleeve of the internal combustion engine. Mathematical model of the deformation process." Journal of Physics: Conference Series 2131, no. 2 (2021): 022072. http://dx.doi.org/10.1088/1742-6596/2131/2/022072.

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Abstract During the operation of internal combustion engines, deformation of the cylinder sleeve is possible, which causes its premature wear during the operation of the “piston ring – sleeve” pair. Imagine the sleeve as a two-stage hollow cylinder with forces applied to it, which cause deflection in the section. It can be assumed that if the greatest deformation of the cylinder is in the section of the application of forces, then with distance from this place it will decrease. At some distance from the point of application of forces, the deflection of the sleeve will be equal to zero. It is r

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8

Remarchuk, M., O. Suranov, and H. Afanasov. "INCREASING THE DURABILITY OF HYDRAULIC CYLINDERS OF LIFTING AND TRANSPORTING MACHINES." Municipal economy of cities 4, no. 185 (2024): 36–40. http://dx.doi.org/10.33042/2522-1809-2024-4-185-36-40.

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Most lifting and transporting and loading and unloading machines have a hydraulic drive. One of the most common actuators that perform reciprocating and rotary movements are hydraulic cylinders, characterised by one-sided wear of the rod seals. Known rod assemblies are elastic sleeves mounted in the hydraulic cylinder housing, which covers the rod with a guaranteed gap. During the unit operation, a gap seal forms in the gap between the rod and the sleeve, which prevents the leakage of the working fluid from the high-pressure cavity and centres the rod in the sleeve. However, to ensure the reli

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9

Zhang, Longfei, and Honghai Xu. "Analysis of factors affecting uniformity of engine coolant flow rate." Journal of Physics: Conference Series 2951, no. 1 (2025): 012080. https://doi.org/10.1088/1742-6596/2951/1/012080.

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Abstract Aiming at the short service life of an engine cooling water sleeve caused by uneven heating, the CFD model is established using STAR-CCM+ software, and the flow field simulation in the cooling water sleeve is completed. Based on this premise, the orthogonal test design method is employed to investigate the effects of cross-section size and allocation of cylinder holes in various areas of the cooling water sleeve on the uniformity of coolant velocity. The results show that the cylinder holes near the thermostat outlet have the most significant impact on the coolant velocity uniformity,

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10

Jia, Yu Jing, Da Yu Zhang, Guang Zhen Cheng, and Ying Jun Dai. "Rotating Clamping Device of the Hydraulic Prop Disassemble Machine Based on Hydromechanics." Applied Mechanics and Materials 164 (April 2012): 344–47. http://dx.doi.org/10.4028/www.scientific.net/amm.164.344.

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This article introduces a rotating clamping device, using with the disassemblage machine of monomer hydraulic prop. It was used for clamping hydraulic prop, which was mainly comprised by the coupling mechanism, clamping mechanism and compressing mechanism. The coupling mechanism sleeve was bolted to the spindle. Clamping mechanism located at the end of sleeve, working with the spindle rotation. Compressing mechanism hang around the sleeve, not working with the spindle rotation. Compressing mechanism passed the clamping force through the thrust bearing, clamping the hydraulic prop. It was easy

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11

Zhang, Junli, Baochun Lu, Honghu Zhang, Jiachen Yao, and Zhengyang Li. "Design improvement of interference-type locking cylinder." Journal of Physics: Conference Series 2853, no. 1 (2024): 012046. http://dx.doi.org/10.1088/1742-6596/2853/1/012046.

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Abstract The wear of the cylinder and locking-sleeve, generate during operation, is one of the main problems of interference-locking cylinder. In order to solve this problem, the operating principle and traditional design method of interference-locking cylinder are introduced briefly, the causes of wear are found based on its force state. And then an improved design method of interference-locking cylinder is proposed, the magnitude of interference is divided into two parts. A simplified finite element model of interference-fit is established and simulations are conducted to verify the effectiv

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12

Ye, Zi Bo, Sheng Guan Qu, Yong Hu, and Guang Hong Wang. "Study on Wear Mechanism of Chromium Carbide Coating Reinforced Cast Iron Cylinder Sleeve." Applied Mechanics and Materials 273 (January 2013): 124–28. http://dx.doi.org/10.4028/www.scientific.net/amm.273.124.

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In tribological system of internal combustion engine, cylinders and pistons were in high temperature, pressure and load working status. An SRV IV wear tester was used to measure dynamic coefficient of friction by simulating working condition of cylinder liner and piston ring. The worn surface topography was observed through scanning electron microscope and metallography. The results show that loads had little effect on the friction coefficient under oil lubrication. Cylinder with the high-chromium carburizing ring in pairs displayed wear in the form of plastic deformation, while cylinder with

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13

Darmawan, Irfan, Alloysius Vendhi Prasmoro, Iskandar Zulkarnaen, and Indriyani Dharmayanti. "Analisis Persediaan Bahan Baku Aluminium dan Insert pada Cylinder Block Dengan Metode Material Requirement Planning (MRP) di PT SIM." Journal of Engineering Environtmental Energy and Science 4, no. 1 (2025): 1–8. https://doi.org/10.31599/d97psx64.

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PT. SIM plant Cikarang merupakan perusahaan manufaktur yang bergerak di bidang otomotif, terdapat bagian Die Casting yang memproduksi beberapa komponen berbasis aluminium, salah satu komponen yang dibuat adalah cylinder block, dalam proses pembuatan cylinder block terjadi gap antara rencana dan aktual produksi yang menyebabkan pengunaan bahan baku aluminium melebihi dari perencanaan atau bisa disebut terjadinya kekurangan material dalam kegiatan produksinya. Sehingga tujuan dari penelitian ini untuk merencanakan kebutuhan bahan baku yang sesuai dengan kebutuhan. Adapun metode yang digunakan ad

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14

Hird, L. D., P. F. Siew, and S. Wang. "A numerical solution to the flow between eccentric rotating cylinders with a slotted sleeve." Journal of the Australian Mathematical Society. Series B. Applied Mathematics 41, no. 1 (1999): 129–52. http://dx.doi.org/10.1017/s0334270000011085.

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AbstractThe flow between two eccentric rotating cylinders with a slotted sleeve placed around the inner cylinder is determined numerically using an exponentially fitted finite-volume method. The flow field is determined for various Reynolds numbers, eccentricities and rotational speeds for the cases when the cylinders rotate in the same sense and rotate in opposite senses. The flow field developed when both cylinders rotate in the same sense is characterised, for sufficiently large eccentricity and rotational rate, by two counter-rotating eddies. Only one eddy is observed when the cylinders ro

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15

Dobriak, V. D., Yu.D., S. L. Stasevskyi, І.А., and D. Yu Uhriumov. "Technology of preparation of sleeve ends before pilgrims rolling." System technologies 4, no. 159 (2025): 56–74. https://doi.org/10.34185/1562-9945-4-159-2025-07.

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The paper considers the issues of improvement of hot pilgrim rolling of pipes by means of preparation of front and rear ends of sleeves. The presence of a gap between the sleeve and mandrel increases transverse variance and reduces pipe accuracy during pilgrim rolling. In the present article the issues of preparation of the front and rear ends of the sleeves to ensure the alignment of the sleeve and mandrel in the process of Pilgrim rolling are comprehensively considered. The preparation of the front ends of the sleeves is proposed to be carried out on a slant-rolling piercing mill by idle rol

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16

Zhou, Hua Xiang, Zheng Zhou, and Jing Ping Liu. "High Temperature Cylinder Sleeve Design Research Self-Lubricating Materials." Applied Mechanics and Materials 628 (September 2014): 53–58. http://dx.doi.org/10.4028/www.scientific.net/amm.628.53.

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Cylinder Liner design innovation goal is energy conservation. As the main friction parts engine cylinder liner, reducing friction energy is energy saving basic requirements. Materials research cylinder sleeve is one of the main cylinder liner saving research. Through the piston ring and cylinder liner surface friction dual material hard phase, self-lubricating phase, toughening phase analysis, select compatibility, high strength, heat resistance, good high temperature performance, ease of manufacture, price rational matrix material and an appropriate proportion of nanoscale hard material, self

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17

Vytvytskyi, Viktor, Vladyslav Vytvytskyi, Ihor Mikulionok, Oleksandr Sokolskyi, and Tetiana Shylovych. "Study of the modernized single-screw extruder body energy efficiency." Proceedings of the NTUU “Igor Sikorsky KPI”. Series: Chemical engineering, ecology and resource saving, no. 4 (December 23, 2023): 9–17. http://dx.doi.org/10.20535/2617-9741.4.2023.294323.

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The subject of the study is the energy efficiency of the polymer extrusion process in a single-screw extruder for the polymer materials processing. The purpose of the research is to improve the design of the feeding section of the single-screw extruder cylinder, which consists in placing thermal paste in the gap between the connecting cylindrical surfaces of the removable cylindrical sleeve and the channel of the feeding section cylinder, which reduces the thermal resistance of the section wall and improves heat transfer from the processed material to the cooling water, and therefore, it

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18

Hird, L. D., and P. F. Siew. "Small reynolds number flow between eccentric rotating cylinders with a permeable sleeve." Journal of the Australian Mathematical Society. Series B. Applied Mathematics 38, no. 2 (1996): 255–73. http://dx.doi.org/10.1017/s0334270000000643.

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AbstractTwo eccentric rotating cylinders together with a permeable membrane surrounding the inner cylinder are used to model the flow around a modified viscometer. A perturbation method is used to solve for the flow between the membrane and the outer cylinder; the flow between the inner rotor and the membrane is assumed to be governed by Stoke's equation, and the two flow regimes are coupled by the through-flow across the membrane. For moderate values of Reynolds number and eccentricity, the permeability of the membrane plays a negligible role, and the flow through the membrane is found to be

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19

Sumpena, Sumpena, Hb Sukarjo, Wardoyo Wardoyo, and Soksono Singgih Pramana. "Analisa Kekerasan dan Keausan Cylinder Sleeve dari Besi Cor Kelabu FC250 Hasil Sand Mold Casting." Jurnal Engine: Energi, Manufaktur, dan Material 5, no. 2 (2021): 97. http://dx.doi.org/10.30588/jeemm.v5i2.944.

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<p><em>The Cylinder sleeve is an engine component that is mounted on the cylinder block which functions as a piston glide base. The cylinder sleeve is made of FC250 gray cast iron. FC250 is a gray cast iron that has lamellar graphite with a tensile strength of at least 250 MPa. This study aims to determine the mechanical properties of hardness and wear of the Cylinder Sleeve made of gray cast iron FC250. The method used in this research is gray cast iron which is cut with a length of 5.5cm, thickness 0.7cm, height 0.7cm which is formed according to the standard size of the hardness

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20

Li, C. G., S. W. Wang, and H. Y. Lu. "Modeling of an Elastomeric Friction Damper." Rubber Chemistry and Technology 82, no. 2 (2009): 170–83. http://dx.doi.org/10.5254/1.3548242.

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Abstract Frictional resistance of a hollow rubber cylinder steadily sliding inside a rigid sleeve has been studied theoretically and reported here. This is inspired by a new class of elastomeric friction damper consisting of an unbonded rubber cylinder, axially compressed and radially expanding to contact an outer rigid sleeve and generate friction. By considering the force equilibrium of each thin section of the rubber cylinder and adapting the principle of superposition, the tri-bological problem was decomposed into three fundamental sub-problems, which were solved consecutively. The results

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21

Dustmurodovna, Khujayarova Mokhigul. "Vehicles of Transportation Internal Combustion Engine Press the Details of the Institution Inspection." Journal of Mechanical Engineering 1, no. 2 (2024): 8. http://dx.doi.org/10.47134/jme.v1i2.2616.

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In this article, the engine in the operation of vehicles details, including cylinder-piston group details, and changes in engine performance, piston rod and cylinders in the details of the cylinder when the body presses the flame-touch surface of the cylinder head redistribution of heat flow occurs, their temperature and the change of grooves in the piston-sleeve connection was analyzed. The study aims to improve the reliable performance of internal combustion engine vehicles by focusing on the maintenance and condition of the cylinder-piston group. The research includes a literature review an

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22

DENISOV, V. A., and N. A. POPOV. "THE WEAR RESISTANCE OF CYLINDER LINERS RESTORED BY CERAMIC COATING." Tekhnicheskiy servis mashin 62, no. 1 (2024): 101–6. http://dx.doi.org/10.22314/2618-8287-2024-62-1-101-106.

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The results of the study of the workability and wear resistance of the combined coating of the restored cylinder liners obtained by applying a layer of aluminum powder to the cast-iron base by cold gas-dynamic spraying with subsequent treatment by microarc oxidation were presented. (Research purpose) The research purpose is a comparative analysis of the tribotechnical properties of the conjugations "sleeve coated with cold gas-dynamic spraying and treatment with microarc oxidation-counter-sample 100Cr6" and "sleeve (SH25 in the delivery state)-counter-sample 100Cr6" (reference pairing). (Mater

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23

Marchenko, D., and K. Matvyeyeva. "Theoretical research of the technology of finishing cylinders with antifriction materials." Problems of tribology 100, no. 2 (2021): 65–70. http://dx.doi.org/10.31891/2079-1372-2021-100-2-65-70.

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The article analyzes the research aimed at the use of various materials, additives and additives to oils. It is established that their application is mainly limited to the stages of operation, bench and operational running-in. The use of antifriction materials at the stage of processing the parts of internal combustion engines, limiting the resource, is small, despite the fact that such treatment reduces the running-in time and improves the finish of the friction surfaces. Theoretical calculation of the parameters of the working surface of the engine cylinder liner during their finishing using

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24

Wang, Wei, Hua Gui Huang, and Jing Yi Zhao. "Non-Linear Finite Element Analysis on Thrust Cylinder of Shield Machine." Applied Mechanics and Materials 101-102 (September 2011): 492–95. http://dx.doi.org/10.4028/www.scientific.net/amm.101-102.492.

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The thrust cylinder is one of the most important components in thrust system of the shield machine. The enormous thrust force and radial load makes the cylinder work under bad environment. In this paper, it uses nonlinear finite element method to simulate the thrust cylinder structure of a type shield machine. From the simulation results, the contact stress distribution of the oil cylinder guide sleeve and the deformation of the piston rod are discussed, and then the way to reduce the stress concentration is proposed. It provides the theory basis for the design and check of the thrust cylinder

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25

BRATSLAVETS, B. "DEVELOPMENT OF THE METHOD OF NON-DESTRUCTIVE QUALITY CONTROL OF HARDENED CYLINDER SLEEVE OF AUTOTRAKTOR EQUIPMENT." HERALD OF KHMELNYTSKYI NATIONAL UNIVERSITY 295, no. 2 (2021): 275–77. http://dx.doi.org/10.31891/2307-5732-2021-295-2-275-277.

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The main part of tractor engines is the cylinder liner, which depends on the life of the machine as a whole. It is made of gray cast iron (SCh20 DSTU 1412-85) with the addition of alloying elements and subjected to the working surface of HDTV hardening. Now quality control is carried out by destructive methods (assessment of hardness, durability, structure) on specially cut templates on 1 piece. from a party to 80-100 pieces of each melting. Such control does not ensure the reliability of products, both in the quality of the base metal and heat treatment. The solution to this problem is possib

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26

Maksimenko, N. M., and A. A. Laptev. "Design features of engines of generation of A-41SI family." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 5 (May 1, 2020): 29–34. http://dx.doi.org/10.33920/sel-10-2005-05.

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Design documentation on diesel engines of the A-41SI model is analysed. By results of the analysis it is revealed that on diesels of this type individual heads of cylinders, an electric starter with a pro-rate for start of engines are introduced, assembly units and details are improved: cranked shaft, sets of radical and shatunny inserts, cylinder sleeve, the piston, set of piston rings, casing with disks of the coupling of coupling, etc. Introduction of new constructive changes on A-41SI diesels allowed to raise their rabotosposbnost and durability.

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Maksimenko, N. M., and A. A. Laptev. "Design features of the new generation engines of the A-41SI family." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 2 (February 28, 2022): 55–61. http://dx.doi.org/10.33920/sel-10-2202-07.

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Design documentation on diesel engines of the A-41SI model is analysed. By results of the analysis it is revealed that on diesels of this type individual heads of cylinders, an electric starter with a pro-rate for start of engines are introduced, assembly units and details are improved: cranked shaft, sets of radical and shatunny inserts, cylinder sleeve, the piston, set of piston rings, casing with disks of the coupling of coupling, etc. Introduction of new constructive changes on A-41SI diesels allowed to raise their rabotosposbnost and durability.

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28

R, Deepalakshmi, Sivakumar G K, Koorella Krishna, and Santosh M. "IC Engine Injector Sleeve O-Ring-Field Failure Resolution." ARAI Journal of Mobility Technology 5, no. 1 (2025): 1474–80. https://doi.org/10.37285/ajmt.5.1.8.

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Failure of Injector Sleeve O-ring was observed at Diesel engine particular in specific vehicle application. And the failure is on coolant leakage from cylinder head assembly. In general, failure causes may be due to assembly, rocker cover gasket issue, water pump failure, improper gland fill ratio in injector sleeve, improper material selection etc., In this study Injector assembly including, sleeve, O ring seal were dismantled and put up on the detailed investigation. Based on analysis, Injector sleeve O ring crack with black burn marks observed in all the failed assembly. O-Ring material is

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Matveev, Yuriy Ivanovich, Sergey Yur'evich Kuritsyn, Sergey Sergeevich Kazakov, and Rafik Rafailevich Zhamalov. "The effect of the piston ring “lock” value on the performance of the new sealing of the parts of the marine diesel cylinder piston group." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2025, no. 1 (2025): 37–48. https://doi.org/10.24143/2073-1574-2025-1-37-48.

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Piston rings are one of the main parts of the cylinder piston group of an internal combustion engine. The operation of compression rings generally determines the reliability of the engine. Due to its versatility, these parts of the cylinder piston group ensure the efficient operation of the marine diesel engine. Piston rings do not provide absolute tightness of the combustion chamber. The passage of exhaust gases occurs for two reasons. Firstly, the presence of a thermal gap, called an annular “lock”. Secondly, due to the wear of the “mirror” of the cylinder. High temperatures and loads change

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30

Li, Su, Jing Yang, Sadia Rashid, Chensi Shen, and Jianshe Liu. "Al-Doped chitosan nonwoven in a novel adsorption reactor with a cylindrical sleeve for dye removal: performance and mechanism of action." RSC Advances 6, no. 112 (2016): 110935–42. http://dx.doi.org/10.1039/c6ra21369c.

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To overcome the inconvenience of solid/liquid separation of powdered adsorbents, a novel adsorption reactor with a cylinder sleeve was designed to match the textile-pattern of chitosan nonwoven for the sake of easy separation and simple operation.

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31

Denisov, Vyacheslav A., Aleksandr Yu Kostyukov, and Roman N. Zadorozhniy. "Restoration of cylinder liners for automotive tractors engines in modern conditions." Tekhnicheskiy servis mashin, no. 2 (June 10, 2020): 122–33. http://dx.doi.org/10.22314/2618-8287-2020-58-1-122-133.

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One of the most promising technologies for restoring machine parts and cylinder liners is electric spark treatment as the most versatile technology that provides high-quality restoration of worn parts with wear up to 0.5 mm. (Research purpose) The research purpose is in developing a technology for restoring various cylinder liners by means of electric spark processing, selecting optimal modes and electrode materials that allow improving the quality of repair and increasing the post-repair life of the sleeve. (Materials and methods) It was taken into account when conducting research aimed at re

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Lee, Seong Beom, and Youn Ho Cho. "A Study on the Relationship of Frequency and Deformation for Viscoelastic Material." Key Engineering Materials 297-300 (November 2005): 225–32. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.225.

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Viscoelastic materials are used in automobiles and other products. However, because of theoretical complexity, it has not been easy to put all the energy exhausted into the automotive viscoelastic materials. Since time is the most important factor in the study of viscoelastic material, creep and stress relaxation functions are very important. In this study, a bushing was selected for special viscoelastic material. A bushing is a device used in automotive suspension systems to cushion the force transmitted from the wheel to the frame of the vehicle. A bushing is essentially a hollow cylinder wh

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33

Wu, Hua, Hai Ming Shi, Hai Feng Liu, and Zhen Jia Xia. "Numerical Simulation of Flow Field and Temperature Field on Aluminium Alloy Engine Cylinder in Casting Process." Materials Science Forum 704-705 (December 2011): 50–57. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.50.

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Casting properties and process improvement of A356 aluminium alloy which is used to cast automobile engine cylinder is investigated in the present paper. The effects of flow field and temperature field on the microstructure and defects distribution of A356 is analyzed by ProCAST software. Simutaneously, the mold filling and solidification of the bottom gating and rotated solidification technology is simulated. Thus, the optimize process parameters obtained by calculating is pouring temperature 725°C, pouring times 21s, and preheating temperature of cylinder sleeve 450°C. Then, the cylinder is

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34

Zhou, B., Q. Liu, J. Guo, and Y. Ji. "Research on a Sleeve Antenna Mounted on Metallic Cylinder." Journal of Electromagnetic Waves and Applications 19, no. 6 (2005): 769–77. http://dx.doi.org/10.1163/1569393054069118.

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Grunin, K. E. "Improving diagnostics of the cylinder-piston group by pneumatic testing." Traktory i sel hozmashiny 88, no. 4 (2021): 13–21. http://dx.doi.org/10.31992/0321-4443-2021-4-13-21.

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The task of authors research was to determine the emerging leaks when compressed air is supplied to the above-piston space under pressure of 4, 5 and 6 kgf / cm2, respectively. To obtain more reliable results, measurements of the leakage of the above-piston space by pneumatic testing should be performed three times. The deterioration of this tribo-coupling should be assessed by the average values of the obtained values. In order to identify the analytical relationships between the readings of the pneumotester and various types of cylinder malfunctions, it is necessary, to simulate during

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Highsmith, M. Jason, Stephanie Lutton Carey, Kip W. Koelsch, Craig P. Lusk, and Murray E. Maitland. "Design and Fabrication of a Passive-Function, Cylindrical Grasp Terminal Device." Prosthetics and Orthotics International 33, no. 4 (2009): 391–98. http://dx.doi.org/10.3109/03093640903241771.

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To assist upper extremity amputees with achieving stable grasps of cylindrical tools, this article describes the development and testing of a prosthetic device for recreational kayak paddling. Initial development included participation of a non-amputee expert kayakist. Subsequent testing of the device used a pseudo-prosthesis for testing on a non-amputee subject, followed by qualitative feedback on the device from a unilateral transradial amputee. The device was evaluated by exploring whether subjects could independently don the terminal device, apply the paddle and use it in a pool and on a r

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Zhang, Heng, Wuqiang Long, Ge Xiao, Bo Li, and Yuehua Qian. "Numerical Research on Effects of Variable Port Timing on Performance of Marine Low-Speed Two-Stroke Engine." Processes 11, no. 10 (2023): 2811. http://dx.doi.org/10.3390/pr11102811.

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Enhancing the effective expansion ratio to further improve the fuel consumption, this study implemented a kind of Variable Port Timing (VPT) by designing a vertically moving sleeve on the outside of the scavenging port of a low-speed two-stroke diesel engine with a 340 mm bore. A 3D Computational Fluid Dynamics (CFD) model was constructed and calibrated to investigate the influence of the VPT strategy on the engine performance and the internal gas exchange process. The results indicated that the VPT can reduce the negative work from the compression stroke and increase the expansion work from t

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Ковальчук, Л. И., and М. В. Бураковская. "Theoretical assessment of the stress-strain state of the cylinder sleeve of a marine diesel engine from the effects of variable moving gas loads." MORSKIE INTELLEKTUAL`NYE TEHNOLOGII)</msg>, no. 4(54) (December 2, 2021): 49–53. http://dx.doi.org/10.37220/mit.2021.54.4.006.

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Цилиндровые втулки относятся к наиболее нагруженным деталям судовых дизелей. Оценка их напряженно-деформированного состояния показывает, что последовательное форсирование дизелей по среднему эффективному давлению требует существенного пересмотра некоторых положений конструирования этих деталей. Это касается конструктивного оформления наружных поверхностей втулок, а также их закрепления в блоке цилиндров. В статье рассматривается влияние условий закрепления верхнего торца втулки и промежуточных опор-уплотнителей на деформирование цилиндровой втулки газовыми нагрузками. Показано, что для выбора

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Liu, Yun. "Buckling Analysis of Steel Cylinder in Super Long Bored Piles Construction." Applied Mechanics and Materials 361-363 (August 2013): 1133–36. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.1133.

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This study focuses on buckling analysis of steel cylinder in super long bored piles during construction. Due to special reasons, a steel sleeve is needed to be put into a 92m-long bored pile hole. On the basis of the theoretical estimation and numerical calculation of the steel cylinder, analysis model is established and the highest first pouring height is got. To ensure construction safety, casting speed can be from slow to fast and we can place level or toroidal support at appropriate placement of the steel cylinder. Moreover, test was done and the results show that the wall is in good condi

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Rahim, Tariq, and Jiaodong Xu. "Design of Dual Band Sleeve Dipole Antenna for Mobile Jammer Applications." TELKOMNIKA Indonesian Journal of Electrical Engineering 16, no. 1 (2015): 106. http://dx.doi.org/10.11591/tijee.v16i1.1594.

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A multi band sleeve dipole antenna for jammer application is proposed. The antenna can cover band in which mobile and other wireless devices operate. The design antenna shows very good omni-directional characteristics and scattering parameter S11 value less than -10db. The dipole is made of two concentric hallow cylinder with different radius and different lengths. The antenna is fed at the center with coaxial cable pass through the bottom cylinder and thus avoids the use of complicated balun network. The impedance bandwidth and the radiation pattern are measured and analyzed both at 900 MHz a

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Chukwunedum, Ogochukwu Chinedum, Nnaemeka Fredrick Okeagu, Sunday Chimezie Anyaora, and Chinazom Daniel Anizoba. "Increasing method performance of long-dimensional hydraulic cylinders for road and construction machinery." Greenation International Journal of Engineering Science 3, no. 1 (2025): 23–47. https://doi.org/10.38035/gijes.v3i1.450.

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Single bucket excavators are one of the most frequent types of construction machines, as shown in this work (CM). Due to a variety of advantages over a mechanical drive, the vast majority of them use a hydraulic drive. The hydraulic drive, on the other hand, has a significantly poorer reliability. Hydraulic cylinders are the most significant factor limiting its dependability. One of the shortcomings of the existing design of the most popular double-acting reciprocating hydraulic cylinder on road-building machines with a one-sided rod is that it has a deflection before applying an operational l

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McDade, P., B. J. Wood, W. Van Westrenen, et al. "Pressure corrections for a selection of piston-cylinder cell assemblies." Mineralogical Magazine 66, no. 6 (2002): 1021–28. http://dx.doi.org/10.1180/0026461026660074.

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Abstract Piston-cylinder cell assemblies experience inhomogeneous pressure distribution upon pressurization due to the variable compressibilities of the cell components. This results in the sample experiencing a pressure lower than expected, given the applied force of the piston. Although the effect is generally compensated for by applying a ‘friction’ correction, there have been wide variations in the corrections applied for some of the harder cell materials. We have determined friction correction factors for a range of cell assemblies commonly used in our laboratory relative to select well-c

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Dzyura, Volodymyr, Taras Dzhyvak, Vasyl Fediv, and Ihor Chvartazkuy. "Transformation of Deviations from the Roundness of the Inner Cylindrical Surface of the Hydraulic Cylinder During Its Manufacture." Central Ukrainian Scientific Bulletin. Technical Sciences 1, no. 10(41) (2024): 155–63. https://doi.org/10.32515/2664-262x.2024.10(41).1.155-163.

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The article presents the results of determining the accuracy of the shape of the cross-section and obtained numerical values of the statistical characteristics of dispersion of deviations from the roundness of the surface of the cylinder sleeve of the telescoping boom of the KTA-25 automobile crane after each technological operation of its processing. The impact of technological operations on the amount of deviation from roundness and the prevailing harmonics, which indicate the type of shape deviation, is determined. Moreover, the form of deviations from roundness is preserved after the first

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Fernández, Daniel, Alvaro Rodríguez-Prieto, and Ana María Camacho. "Effect of Process Parameters and Definition of Favorable Conditions in Multi-Material Extrusion of Bimetallic AZ31B–Ti6Al4V Billets." Applied Sciences 10, no. 22 (2020): 8048. http://dx.doi.org/10.3390/app10228048.

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This paper investigates the extrusion process to manufacture bimetallic cylinders combining a magnesium alloy core (AZ31B) and a titanium alloy sleeve (Ti6Al4V) of interest in aeronautical applications. A robust finite element model has been developed to determine the most influential parameters and to study the effect of them on the extrusion force and damage induced by means of Design of Experiments (DOE) and Taguchi method. The results show that the most influential parameters in the extrusion forces are the friction between sleeve and container/die and the height of the cylinder; and the l

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Liu, Cong, Pei Xiao, Xingli Li, and Gangyan Li. "Simulation Analysis of Cylinder Impact Performance Influenced by Shaft Sleeve Structure." International Journal of Fluid Machinery and Systems 11, no. 1 (2018): 30–38. http://dx.doi.org/10.5293/ijfms.2018.11.1.030.

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Hormaza, W., L. Mateus, and A. Maranon. "Failure analysis of a cylinder sleeve from a turbocharged diesel engine." Engineering Failure Analysis 16, no. 5 (2009): 1355–65. http://dx.doi.org/10.1016/j.engfailanal.2008.09.010.

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Lei, Fengli. "Numerical simulation of thermal deformation of oil distribution sleeve based on heat transfer theory." Journal of Physics: Conference Series 2862, no. 1 (2024): 012032. http://dx.doi.org/10.1088/1742-6596/2862/1/012032.

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Abstract In this paper, a study of numerical simulation was conducted based on heat transfer and finite element theory, to analyze the sealing gap change between the oil distribution sleeve (ODS) and the shaft by the effect of temperature. The results showed that the temperature is the dominant reason for the failure of the ODS seal. The thermal deformation of the ODS is radiative expansion and the sealing gap is linearly positively related to the temperature. The wall thickness did not affect the distribution of thermal deformation of the ODS. The sealing gap increases with the increase of th

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Uilhoorn, Ferdinand, and Maciej Witek. "Influence of unsteady pressure-flow conditions on strength of steel pipelines with volumetric defects reinforced by composite sleeves." E3S Web of Conferences 137 (2019): 01043. http://dx.doi.org/10.1051/e3sconf/201913701043.

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Structural integrity and risk management have a wide interest because of its practical applications, such as oil and gas pipelines, piping systems under pressure in power stations, urban water, and heating networks. The main goal of this paper is twofold. Firstly, to estimate the unsteady pressureflow variations in a gas transmission grid within the framework of sequential data assimilation. This technique enables to determine accurately the maximum pressure at the localized defect on the pipeline by merging measurements that contain random errors into the inexact numerical flow model. For thi

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Efendi, Hasrul, Adi Pratama Putra, and Dewi Sartika. "Kalibrasi Pompa Injeksi Tipe In-Line Dalam Persamaan Volume Bahan Bakar Motor Diesel 4 Silinder." V-MAC (Virtual of Mechanical Engineering Article) 6, no. 1 (2021): 15–21. http://dx.doi.org/10.36526/v-mac.v6i1.1150.

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Injector is an important component in the diesel engine fuel injection system. This study aims to obtain the results of the in-line type injection pump calibration in the equation of the fuel volume of a 4 cylinder diesel motor. The research was conducted by making simple calibration equipment. Experiments were carried out for 200-300 rpm, 350-450 rpm and 550-600 rpm experimental apparatus rotation speed. Measurements are made for the volume of fuel using a measuring cup. Injection pump calibration is done by loosening the lock on the sleeve then sliding the sleeve to the left or right on each

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Lu, Yong, and Robert J. Rogers. "Normal Instantaneous Squeeze Film Force for a Finite Length Cylinder." Journal of Tribology 116, no. 3 (1994): 588–96. http://dx.doi.org/10.1115/1.2928886.

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A theoretical model for the normal instantaneous squeeze film force for a finite length cylinder is developed in this paper. The model assumes large unidirectional cylinder motion along a sleeve diameter. Based on the assumption of a parabolic flow field, a normal squeeze film model for an infinitely long cylinder is first obtained. Combining the infinitely long model with side-leakage factors, a finite length model is then obtained. The model shows that the instantaneous squeeze film force consists of three position-dependent nonlinear terms: namely a viscous term, an unsteady inertia term an

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