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Статті в журналах з теми "Internal friction model":
Kailasham, R., Rajarshi Chakrabarti, and J. Ravi Prakash. "Rouse model with fluctuating internal friction." Journal of Rheology 65, no. 5 (September 2021): 903–23. http://dx.doi.org/10.1122/8.0000255.
Kul’kov, V. G. "Diffusion model of internal friction in nanocrystalline materials." Technical Physics 52, no. 3 (March 2007): 333–38. http://dx.doi.org/10.1134/s1063784207030085.
Sakaguchi, Shuji. "Analysis of Internal Friction on Silicon Nitride with Visco-Elastic Model." Key Engineering Materials 317-318 (August 2006): 429–32. http://dx.doi.org/10.4028/www.scientific.net/kem.317-318.429.
Ozaki, Shingo, Takeru Matsuura, and Satoru Maegawa. "Rate-, state-, and pressure-dependent friction model based on the elastoplastic theory." Friction 8, no. 4 (January 4, 2020): 768–83. http://dx.doi.org/10.1007/s40544-019-0321-3.
Monieta, Jan. "Problems of Friction Force Measurement between Cylindrical Outdoor and Internal Slide Parts." Multidisciplinary Aspects of Production Engineering 1, no. 1 (September 1, 2018): 19–25. http://dx.doi.org/10.2478/mape-2018-0003.
Inaguma, Y. "Friction torque characteristics of an internal gear pump." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 225, no. 6 (April 11, 2011): 1523–34. http://dx.doi.org/10.1177/0954406211399659.
Aleksandrova, N. I. "MODEL OF BLOCK MEDIA TAKING INTO ACCOUNT INTERNAL FRICTION." Mechanics of Solids 57, no. 3 (June 2022): 496–507. http://dx.doi.org/10.3103/s0025654422030025.
Babakov, V. A. "Model of plastic body with internal friction and dilatancy." Soviet Mining Science 23, no. 3 (May 1987): 191–98. http://dx.doi.org/10.1007/bf02500809.
Ren, W. "Inverse relaxation-model and relation to recovery internal friction." Colloid & Polymer Science 270, no. 10 (October 1992): 990–98. http://dx.doi.org/10.1007/bf00655968.
Giorgio, Ivan, and Daria Scerrato. "Multi-scale concrete model with rate-dependent internal friction." European Journal of Environmental and Civil Engineering 21, no. 7-8 (February 29, 2016): 821–39. http://dx.doi.org/10.1080/19648189.2016.1144539.
Дисертації з теми "Internal friction model":
Stone, Tonya Williams. "Multiscale friction using a nested internal state variable model for particulate materials." Diss., Mississippi State : Mississippi State University, 2009. http://library.msstate.edu/etd/show.asp?etd=etd-12172008-002750.
Bastidas, Moncayo Kared Sophia. "Experimental and analytical study of the mechanical friction losses in the piston-cylinder liner tribological pair in internal combustion engines (ICE)." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/172188.
[CA] Amb l'augment de la demanda de solucions més amigables amb el medi ambient en la indústria de l'automoció, el motor de combustió interna alternatiu (MCIA) s'enfronta actualment a grans desafiaments per minimitzar el seu consum de recursos no renovables i especialment, per reduir les seves emissions contaminants . Tenint en compte que l'aportació dels MCIA és fonamental per a cobrir les necessitats de mobilitat i generació d'energia arreu de tot el món, i el fet que diferents alternatives, com els motors elèctrics i híbrids, estan i continuaran enfrontat múltiples obstacles per a la seva implementació massiva al proper futur, la investigació contínua en MCIA és fonamental per complir amb els propòsits de reducció d'emissions. En aquest aspecte, una aproximació per a l'augment de l'eficiència del motor i la reducció de consum de combustible és mitjançant la implementació d'alternatives dirigides a reduir les pèrdues mecàniques per fricció. Aquestes alternatives tribològiques inclouen aquelles que requereixen modificacions de components del motor, com materials i acabats superficials, i l'ús de formulacions d'oli lubricant de menor viscositat o additius que milloren les condicions de lubricació del motor. Amb la constant evolució i millores en el MCIA i les condicions de treball cada vegada més severes, també sorgeixen noves alternatives tribològiques per enfrontar els nous desafiaments del motor, i per tant es requereix d'investigacions addicionals en aquest tema. Durant el desenvolupament d'aquesta Tesi, un dels objectius va consistir a contribuir a la investigació de l'ús d'olis de baixa viscositat per a l'estalvi de combustible com un efecte conjunt amb les condicions de conducció de vehicle. Per dur a terme aquest objectiu, es van desenvolupar assajos experimentals sota condicions estacionàries en un banc de motor amb formulacions d'oli de diferent viscositat HTHS, algunes d'elles amb additiu modificador de fricció per expandir el rang de reducció de fricció a condicions de lubricació més severes . Els mapes de consum de combustible resultants d'aquests assajos van ser utilitzats en un model de simulació del vehicle per estimar el seu consum de combustible com a funció de l'oli i les condicions de treball de tres cicles de conducció. Amb l'objectiu d'expandir els coneixements en els fonaments de lubricació dels MCIAs i tenir la capacitat d'avaluar altres alternatives per reduir les pèrdues per fricció, es va considerar necessari enfocar la recerca al conjunt pistó-camisa, que és el parell tribològic amb major aportació a les perdudes per fricció. Per aconseguir aquest objectiu, durant aquesta Tesi es va desenvolupar una maqueta específica per al acoblament pistó-camisa, i un model teòric per simular la lubricació del segment de compressió. Per a la primera part, la maqueta es va desenvolupar basada en el mètode de camisa flotant, en el qual la camisa va ser aïllada de la resta del motor i la força de fricció generada en la interfície pistó-camisa va poder ser mesurada mitjançant sensors de força. En aquesta instal·lació es van desenvolupar diferents assajos els quals van permetre dur a terme una anàlisi exhaustiva dels fonaments de lubricació d'aquest parell tribològic com a funció de diferents paràmetres que tenen impacte en les condicions de lubricació. Aquest estudi es va complementar amb el desenvolupament d'un model de lubricació per al segment de compressió basat en el mètode de diferències finites. Finalment, es va dur a terme una comparativa de resultats experimentals i teòrics per al segment de compressió, la qual cosa va permetre validar els assajos experimentals a la maqueta de camisa flotant, així com el model de simulació des del punt de vista de dades d'entrada, condicions de contorn i hipòtesis.
[EN] With the increasing demand for greener solutions in the automotive industry, the ICE is currently facing great challenges to minimize the consumption of nonrenewable resources and specially to reduce its harmful emissions. Given that the contribution of the ICE is fundamental to cover the actual mobility and power generation needs worldwide, and the fact that different power-train alternatives, such as electric and hybrid vehicles, are and will continue facing multiple obstacles for their large-scale implementation in the near future, the continuous research on the ICE is fundamental in order to meet the emissions reduction targets. In this regard, one approach to increase the engine efficiency and reduce the fuel consumption, is through the implementation of alternatives aimed to reduce the friction mechanical losses. These tribological alternatives include those that require modifications to the engine components, such as materials and surface finishes, and the use of lubricant oil formulation of lower viscosity or additives that improve the lubrication performance of the engine. With the ongoing evolution and improvement of the ICE and the increasingly severe working conditions, new tribological solutions also emerge to face the new challenges in the ICE, and therefore further research is required on this subject. During the development of this Thesis, one of the objectives was to contribute to the research on low viscosity engine oils for fuel economy as a joint effect with the driving conditions of the vehicle. To accomplish this, experimental tests were performed under stationary conditions in an engine bench test for oil formulations of different HTHS viscosity, some of them with friction modifier additive to expand the friction reduction effect to more severe lubrication conditions. The resultant fuel consumption maps were then employed in a vehicle model to estimate the fuel consumption of the vehicle as function of the oil formulation and the working conditions of the three driving cycles. With the aim of expanding the knowledge on the lubrication fundamentals of the engine and to have the capability to assess other alternatives to further reduce the friction mechanical losses, it was deemed necessary to focus the research on the piston-cylinder liner assembly, the tribo-pair of major friction share. In order to achieve this objective, a test rig was developed in this Thesis specific for the piston-liner assembly, and a theoretical model to estimate the lubrication of the piston compression ring. For the first part, the test rig was designed based on the floating liner method, where the cylinder liner was isolated from the rest of the engine and the friction force generated in the piston-liner conjunction could be measured by means of force sensors. Different tests were developed in this test rig which allowed a comprehensive analysis of the piston lubrication fundamentals as function of different parameters having an impact on the lubrication performance of this assembly. This study was complemented with the development of a piston compression ring lubrication model based on the finite differences method. A comparison of experimental and theoretical results was performed for the piston compression ring that helped to validate both the experimental tests in the floating liner and the simulation model from the point of view of input data, boundary conditions and assumptions.
Bastidas Moncayo, KS. (2021). Experimental and analytical study of the mechanical friction losses in the piston-cylinder liner tribological pair in internal combustion engines (ICE) [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/172188
TESIS
Ruzmetov, Talant A. "THE ROLE OF CHAIN FLEXIBILITY AND CONFORMATIONALDYNAMICS ON INTRINSICALLY DISORDERED PROTEINASSOCIATION." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1564588247414425.
El, Helou Rayan. "Agent-Based Modelling of Pedestrian Microscopic Interactions." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469074726.
CASTRO, MARCOS R. de. "O efeito bake hardening na estampagem a quente e a estrutura veicular." reponame:Repositório Institucional do IPEN, 2017. http://repositorio.ipen.br:8080/xmlui/handle/123456789/28028.
Made available in DSpace on 2017-11-21T11:35:56Z (GMT). No. of bitstreams: 0
Os projetos de carrocerias veiculares atuais procuram desenvolver estruturas leves, seja para reduzir o consumo de combustível, no caso dos motores de combustão interna, seja para maior autonomia de bateria, no caso dos veículos elétricos e híbridos. Redução no consumo de combustível significa redução na emissão de poluentes. As estruturas precisam ser leves, mas cada vez mais resistentes e rígidas a fim de proporcionar máximo conforto e segurança aos ocupantes. Estas premissas têm levado ao contínuo desenvolvimento dos materiais. No caso dos aços, um dos processos que tem permitido a melhora significativa das propriedades mecânicas é a estampagem a quente. Nos últimos anos, as peças estampadas a quente têm ocupado lugar de destaque na estrutura das carrocerias veiculares por estarem em sintonia com as demandas mencionadas. Há muitas pesquisas em curso para esta tecnologia, seja nos materiais, nos meios de produção, nos revestimentos e em aplicações. O aço mais utilizado neste processo, 22MnB5, também apresenta o chamado efeito bake hardening; a tensão de escoamento é aumentada após tratamento térmico realizado em temperaturas próximas a 200 °C. Neste trabalho, visando à melhoria nas propriedades mecânicas, amostras foram tratadas termicamente na faixa de temperatura supracitada. Após isso, dados obtidos de ensaios mecânicos foram inseridos em programas de simulação de impacto lateral cujo resultado foi a redução na intrusão na célula de sobrevivência. O efeito bake hardening também propiciou um aumento na absorção da energia de impacto em teste estático feito com barras de proteção lateral. O mecanismo metalúrgico envolvido no fenômeno, devido à difusão de intersticiais foi evidenciado no ensaio de atrito interno.
Tese (Doutorado em Tecnologia Nuclear)
IPEN/T
Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
Книги з теми "Internal friction model":
Hanachi, Shervin. The development of a predictive model for the optimization of high-speed cam-follower systems with coulomb damping internal friction and elastic and fluidic elements. 1986.
Kusainov, A. A., and A. I. Tseitlin. Role of Internal Friction in Dynamic Analysis of Structures: Russian Translations Series 81. CRC Press LLC, 2021.
Kusainov, A. A., and A. I. Tseitlin. Role of Internal Friction in Dynamic Analysis of Structures: Russian Translations Series 81. CRC Press LLC, 2021.
Kusainov, A. A., and A. I. Tseitlin. Role of Internal Friction in Dynamic Analysis of Structures: Russian Translations Series 81. CRC Press LLC, 2021.
Частини книг з теми "Internal friction model":
Aretusi, Giuliano, and Alessandro Ciallella. "An Application of Coulomb-Friction Model to Predict Internal Dissipation in Concrete." In Mathematical Applications in Continuum and Structural Mechanics, 73–86. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-42707-8_5.
Shibuya, Yotsugi. "Evaluation of Internal Friction of Viscoelastic Composites with Meso-Scale Structures for Vibration Damping of Mechanical Structures." In Mechanics and Model-Based Control of Smart Materials and Structures, 163–72. Vienna: Springer Vienna, 2010. http://dx.doi.org/10.1007/978-3-211-99484-9_18.
Mahapatra, D. Roy, and S. Gopalakrishnan. "Nonlinear Spectral Finite Element Model for Analysis of Wave Propagation in Solid with Internal Friction and Dissipation." In Computational Science and Its Applications — ICCSA 2003, 745–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-44843-8_81.
Kleebe, H. J., and G. Pezzotti. "Anion Segregation at Si3N4 Interfaces Studied By High-Resolution Transmission Electron Microscopy and Internal Friction Measurements: A Model System." In Ceramic Microstructures, 107–14. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5393-9_8.
GRITTI, Giovanni, Franco PEVERADA, Stefano ORLANDI, Marco GADOLA, Stefano UBERTI, Daniel CHINDAMO, Matteo ROMANO, and Andrea OLIVI. "Mechanical steering gear internal friction: effects on the drive feel and development of an analytic experimental model for its prediction." In Lecture Notes in Mechanical Engineering, 339–50. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45781-9_35.
Tseitlin, A. I., and A. A. Kusainov. "Hereditary Models of Internal Friction." In Role of Internal Friction in Dynamic Analysis of Structures, 157–208. London: Routledge, 2021. http://dx.doi.org/10.1201/9780203740408-6.
Tseitlin, A. I., and A. A. Kusainov. "Elementary Models for Frequency-Independent Internal Friction." In Role of Internal Friction in Dynamic Analysis of Structures, 94–117. London: Routledge, 2021. http://dx.doi.org/10.1201/9780203740408-4.
Tseitlin, A. I., and A. A. Kusainov. "Frequency-Dependent and Frequency-Independent Models with Visco-elastic Resistance." In Role of Internal Friction in Dynamic Analysis of Structures, 118–56. London: Routledge, 2021. http://dx.doi.org/10.1201/9780203740408-5.
Alammari, Y., J. Saelzer, S. Berger, I. Iovkov, and D. Biermann. "Initial Period of Chip Formation: Observations Towards Enhancing Machining Sustainability." In Lecture Notes in Mechanical Engineering, 193–201. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-28839-5_22.
Truyaert, K., V. Aleshin, S. Delrue, and K. Van Den Abeele. "A Multiscale Numerical Model for Structures with Internal Frictional Contacts." In Proceedings of the 1st International Conference on Numerical Modelling in Engineering, 77–89. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2273-0_7.
Тези доповідей конференцій з теми "Internal friction model":
Gunelsu, Ozgur, and Ozgen Akalin. "Development of a Piston Secondary Motion Model for Skirt Friction Analysis." In ASME 2012 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icef2012-92166.
Hirano, Motohisa. "Atomistics of Friction." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63993.
Xu, H., M. D. Bryant, R. D. Matthews, T. M. Kiehne, B. D. Steenwyk, N. W. Bolander, and F. Sadeghi. "Friction Predictions for Piston Ring-Cylinder Liner Lubrication." In ASME 2004 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/icef2004-0885.
Ting, Yung, Hui-Yi Feng, Han-Chih Hsieh, Li-Yen Wang, Chun-Chung Li, Yuan Kang, and Shihming Wang. "Internal Model Control Using EWMA for a Wedge-Type Piezoelectric Motor." In ASME 2007 International Manufacturing Science and Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/msec2007-31050.
Xu, H., M. Kim, D. Dardal, M. D. Bryant, R. D. Matthews, and T. M. Kiehne. "Numerical and Experimental Investigation of Piston Ring Friction." In ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ices2005-1086.
Bolander, Nathan W., Farshid Sadeghi, and Gordon R. Gerber. "Piston Ring Friction Reduction Through Surface Modification." In ASME 2005 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/icef2005-1346.
Jocsak, Jeffrey, Victor W. Wong, and Tian Tian. "The Effects of Cylinder Liner Finish on Piston Ring-Pack Friction." In ASME 2004 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/icef2004-0952.
Larochelle, Pierre, and J. M. McCarthy. "Static Analysis of Spherical nR Kinematic Chains With Joint Friction." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0377.
Smedley, Grant, S. H. Mansouri, Tian Tian, and Victor W. Wong. "Friction Reduction via Piston and Ring Design for an Advanced Natural-Gas Reciprocating Engine." In ASME 2004 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/icef2004-0879.
Kulkarni, Girish J., Pravin Kakde, Vinod Parekar, Kapil Mestry, and Sandeep Bhosle. "On-Engine Expansion Measurement of Exhaust Manifold for Calibrating Thermo-Mechanical Fatigue FEA Model." In ASME 2021 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icef2021-67640.
Звіти організацій з теми "Internal friction model":
Pullammanappallil, Pratap, Haim Kalman, and Jennifer Curtis. Investigation of particulate flow behavior in a continuous, high solids, leach-bed biogasification system. United States Department of Agriculture, January 2015. http://dx.doi.org/10.32747/2015.7600038.bard.
Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.
Hajdini, Ina. Mis-specified Forecasts and Myopia in an Estimated New Keynesian Model. Federal Reserve Bank of Cleveland, March 2023. http://dx.doi.org/10.26509/frbc-wp-202203r.