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Статті в журналах з теми "Equivalent fatigue load method"
Gao, Ruofan, and Jie Li. "Equivalent constant-amplitude fatigue load method based on the energy equivalence principle." Advances in Structural Engineering 22, no. 13 (June 5, 2019): 2892–906. http://dx.doi.org/10.1177/1369433219852705.
Повний текст джерелаZuo, Huang, Yue Chun Zhang, Ping Liu, Wen Wang, and Shun Xiong. "Study on Loads of Accelerated Contact Fatigue Testing and its Application." Applied Mechanics and Materials 86 (August 2011): 680–83. http://dx.doi.org/10.4028/www.scientific.net/amm.86.680.
Повний текст джерелаLigaj, Bogdan, and Robert Sołtysiak. "Problems of Equivalent Load Amplitude in Fatigue Life Calculations." Polish Maritime Research 23, no. 1 (January 1, 2016): 85–92. http://dx.doi.org/10.1515/pomr-2016-0012.
Повний текст джерелаXu, Ge Ning, Xiao Ning Fan, Feng Yi Lu, and Rui Gang Yang. "The ANN Method of Obtaining Fatigue Load Spectrum of Overhead Traveling Crane." Applied Mechanics and Materials 20-23 (January 2010): 525–31. http://dx.doi.org/10.4028/www.scientific.net/amm.20-23.525.
Повний текст джерелаZhu, Hong Bing. "Calculation Methods for Equivalent Fatigue Stress Amplitude Based on Corten-Dolan Accumulative Damage Rule." Advanced Materials Research 156-157 (October 2010): 1271–74. http://dx.doi.org/10.4028/www.scientific.net/amr.156-157.1271.
Повний текст джерелаMiao, Yizhi, Mohsen N. Soltani, and Amin Hajizadeh. "A Machine Learning Method for Modeling Wind Farm Fatigue Load." Applied Sciences 12, no. 15 (July 22, 2022): 7392. http://dx.doi.org/10.3390/app12157392.
Повний текст джерелаNatarajan, Anand. "Damage equivalent load synthesis and stochastic extrapolation for fatigue life validation." Wind Energy Science 7, no. 3 (June 2, 2022): 1171–81. http://dx.doi.org/10.5194/wes-7-1171-2022.
Повний текст джерелаJung, Dong Soo, Hyoung Eui Kim, Sung Hun Kim, and E. Sok Kang. "Development of Accelerated Life Test Method of Hydraulic Pump." Key Engineering Materials 326-328 (December 2006): 1861–64. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.1861.
Повний текст джерелаZhao, Min, and Jin Di. "Fatigue Load for Cable-Girder Anchorage Structure of Highway and Light-Railway Cable Stayed Bridge." Advanced Materials Research 838-841 (November 2013): 1028–33. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1028.
Повний текст джерелаWang, Lei, Fa Ming Wu, Xing Mei Lv, and Dian Wang. "A Fatigue Analysis Method Research for Main Frame of the Large-Scale Wind Turbine." Applied Mechanics and Materials 226-228 (November 2012): 995–99. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.995.
Повний текст джерелаДисертації з теми "Equivalent fatigue load method"
Prinsloo, Etienne Pieter Willem. "Fatigue equivalent static load: Methodology for the design of vehicle structures." Diss., University of Pretoria, 2003. http://hdl.handle.net/2263/25966.
Повний текст джерелаDissertation (M Eng (Mechanical Engineering))--University of Pretoria, 2003.
Mechanical and Aeronautical Engineering
unrestricted
Warneboldt, Iona. "Multiaxial fatigue design of elastomeric parts using Equivalent Fatigue Loads." Electronic Thesis or Diss., Brest, École nationale supérieure de techniques avancées Bretagne, 2022. http://www.theses.fr/2022ENTA0002.
Повний текст джерелаThis thesis introduces an Equivalent Fatigue Load (EFL) approach for the multiaxial fatigue design of elastomeric parts. As direct Finite Element Analysis (FEA) calculations of automotive in-service loads (Road Load Data (RLD)) are too expensive, the objective is to derive simplified load blocks as a realistic input for numerical damage calculations. Three streps are applied for this method: the localization method, the material damage function and the EFL determination process. Various fatigue tests have been conducted (415 samples) to study the fatigue behavior of this complex type of relaxing and non-relaxing multiaxial loading on natural rubber specimens. Lifetime and crack features are analyzed to eventually introduce an appropriate critical planebased fatigue measure and to establish a novel mean strain effect model. This criterion is generalized throughout an original critical plane search method. To estimate the local mechanical response (localization method), this thesis identifies an axes-coupling method that is fitted for the nonlinear nature of elastomeric structures. It is based on the multiplicative decomposition of the deformation gradient tensors. These two steps are then implemented in the framework of the EFLdetermination process. For this, a global optimization method is added to determine the simplified load blocks, causing locally the same fatigue behavior in the given structure. The computational costs of this optimization are reduced by only considering a subset of the most damaged material points for EFLdetermination. Finally, the method has been challenged on a specimen to outline its capabilities and to validate the approach
Rinehart, Adam James. "Effects of localized geometric imperfections on the stress behavior of pressurized cylindrical shells." Texas A&M University, 2003. http://hdl.handle.net/1969/37.
Повний текст джерелаSANTOS, RODRIGO BIANCHI. "PARAMETRIC OPTIMIZATION OF TRUSS STRUCTURES UNDER DYNAMIC LOADING USING THE EQUIVALENT STATIC LOAD METHOD." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2018. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=35802@1.
Повний текст джерелаCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
Otimização estrutural sujeita a carregamentos dinâmicos é um problema desafiador em vários aspectos, a começar pelo grande número de restrições que devem ser atendidas em todos os instantes de tempo. Além disso, o custo computacional para avaliar os gradientes destas restrições é bastante elevado e requer um grande espaço de armazenamento. Na literatura, alguns métodos reduzem o número de restrições avaliando em instantes de tempo selecionados, como o pior caso por exemplo, ou ainda constroem um funcional equivalente, integrando as restrições violadas ao longo do tempo, assim eliminando essa dependência. Nesta dissertação, o método do Carregamento Estático Equivalente (ESL) é utilizado, no qual o problema dinâmico original é transformado em uma sequência de subproblemas de otimização linear estática com múltiplos casos de carga. Um atrativo deste método é a possibilidade da solução de problemas não lineares, evitando o alto custo devido às repetidas análises estruturais e cálculos das restrições. Problemas clássicos de treliças planas submetidas a carregamentos dinâmicos são resolvidos utilizando o método ESL. A função a ser minimizada é a massa da treliça, que está sob restrições de tensão e deslocamento, onde as variáveis de projeto são as áreas da seção transversal dos membros. Além disso, uma interface utilizando ANSYS e MATLAB é desenvolvida para uma abordagem modular, na qual a análise via elementos finitos e a otimização possam ser realizadas separadamente. Este processo viabiliza a otimização de estruturas que apresentam comportamentos não lineares a partir da utilização de diversos softwares comerciais disponíveis no mercado.
Structural optimization subject to dynamic loading is a challenging problem in many aspects, starting with the large number of constraints that must be respected at all instants of time. Furthermore, the computational cost to evaluate the gradients of these constraints is significantly high and requires a large storage space. In the literature, some methods reduce the number of constraints evaluating at selected instants of time, such as the worst case. Alternatively, a single equivalent functional is constructed to eliminate the time dependence by integrating the violated constraints over time. In this work, the Equivalent Static Load (ESL) method is used, in which the original dynamic problem is reduced into a number of static linear optimization problems with multiple load cases. An attractive feature of this method is the possibility of solving non-linear problems, avoiding the high cost due to repeated structural analyzes and constraint calculations. Classical problems of plane trusses subjected to dynamic loads are solved using the ESL method. The function to be minimized is the truss mass, which is subjected to stress and displacement constraints, where the design variables are the cross-sectional areas of the members. In addition, an interface using ANSYS and MATLAB was developed for a modular approach, in which finite element analysis and optimization can be performed separately. This process makes possible the optimization of structures that present non-linear behavior from the use of most structural analysis software packages available on the market.
Bahai, Hamid R. S. "A hybrid method for load, stress and fatigue analysis of drill string screw connectors." Thesis, Queen Mary, University of London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284406.
Повний текст джерелаCampbell, Patrick George. "Critically examining the capacity of wellness measures as a method of monitoring training load and the athlete training response." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/134391/1/Patrick_Campbell_Thesis.pdf.
Повний текст джерелаJonsson, Björn. "A digital image correlation method for detection of fatigue cracks in non-load carrying T-joints." Thesis, KTH, Lättkonstruktioner, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-234905.
Повний текст джерелаSvetsade konstruktioner under dynamisk belastning blir utmattningshållfastheten ofta en begränsande faktor. Praxis har varit att öka materialtjockleken för att minska nominella spänningen, vilket fungerar bra. Användning av höghållfasthetsstål som tillåter slankarekonstruktioner och viktminskningspotential är det tillvägagångssättet inte aktuellt.Ökad kontroll av svetskvalitet i kombination med kunskap om vilka defekter som påverkar utmattningslivslängden ger möjligheter till viktoptimering. I detta examensarbete har en metod för sprickdetektering under utmattningstest av ickelastöverförande T-förband testats. Provstavar tillverkade av 6mm Strenx 960MC stål. DIC analys genomfördes på bildrutor inspelade av en höghastighetskamera med hypotesen att sprickpropagering detekteras vid 10% relativ töjningsökning per 10 000 cykler.Validering utförs med hjälp av ”beachmarks” från varierande spänningsnivåer under utmattningstestet. Bildsekvensenerna som fångas med höghastighetskameran sammanfaller med slutet på ena spänningsnivån. Antalet ”Beachmarks” visar en sprickfront på ca 200 300μm vid 10% relativ töjning.
Gilbert, Andy Michael. "Validation of a laboratory method for accelerated fatigue testing of bridge deck panels with a rolling wheel load." Thesis, Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/gilbert/GilbertA0512.pdf.
Повний текст джерелаLindholm, Martin, Metin Uçar, and Nermin Dzanic. "The load carrying unit of articulated haulers : Analysis of the welded connections." Thesis, Växjö University, School of Technology and Design, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-5818.
Повний текст джерелаDetta examensarbete handlar om finita element analys av svetsade förband i korgen på Volvo dumpern A40E. Det genomfördes i samarbete med Volvo CE i Braås. Uppgiften var att ge företaget en lämplig lösning för att minska mängden svetsskarvar på den främre delen av lastenheten. För att uppnå detta har en rad analyser genomförts med hjälp av CATIA och ANSYS på både de befintliga och de justerade (potentiella ersättare) svetsade förbanden. Analyserna visar att utmatningshållfastheten av svetsade förband huvudsakligen beror på inbränningsdjupet. Med andra ord, förstärka svetsförband genom större inbränning är mer fördelaktigt än att använda mer svets på utsidan. Slutsatsen blev att både produktionstid och kostnad kan minskas genom justering av de svetsade förbanden. Eftersom svetsförband på lastenheten är sammankopplade bör mer omfattande studier som inkluderar alla svetsar genomföras för att uppskatta effekterna av liknande justeringar.
The work presented in this master thesis is about the finite element analysis of the welded connections in load carrying unit of the articulated hauler, Volvo A40E. It was performed in cooperation with Volvo CE in Braås. The task was to provide the company with an appropriate solution to reduce the amount of weld used on the front part of the load carrying unit. To accomplish this, a series of analyses utilising CATIA and ANSYS was performed on both existing and adjusted (potential replacement) welded connections. The analyses brought to light the fact that the fatigue resistance of welded connections significantly depends on the penetration depth. In other words, reinforcing the welded connections by deeper penetration is more beneficial than providing support from outside through thicker weld. It was concluded that applying adjusted welds lessens both the production time and cost. Nevertheless, since the welds on the load carrying unit are correlated; more extensive studies covering all welds should be carried out to estimate the impacts of similar replacements.
Dossou, Dossouvi. "Fatigue thermique d'un polycarbonate : modèle de prédiction de durée de vie d'éprouvettes entaillées." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL135N.
Повний текст джерелаКниги з теми "Equivalent fatigue load method"
Brondsted, Povl. Fatigue testing: Establishment of a standard method for fatigue testing under variable load amplitudes simulating offshore load spectra. Roskilde: Riso National Laboratory, 1988.
Знайти повний текст джерелаЧастини книг з теми "Equivalent fatigue load method"
Kisu, Hiroyuki, and Gui Ming Rong. "Identification of a Defect Using the Equivalent Load Method." In Key Engineering Materials, 2441–44. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-456-1.2441.
Повний текст джерелаJing-Li, Wang. "A Fast Method for Calculating the Node Load Equivalent Impedance Module." In Electrical Engineering and Control, 599–603. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21765-4_73.
Повний текст джерелаSrinivas, G. Lakshmi, and Arshad Javed. "Multi-body Topology Optimization of Connecting Rod Using Equivalent Static Load Method." In Lecture Notes in Mechanical Engineering, 427–35. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1769-0_39.
Повний текст джерелаKim, Myung Hyun, Sung Won Kang, Chung In Ha, Jae Myung Lee, Jeong Hwan Kim, and Sung Soo Na. "Fatigue Strength Evaluation of Load-Carrying Fillet Weldments under Out-of-Plane Bending Load Using Structural Stress Method." In Key Engineering Materials, 2069–72. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-456-1.2069.
Повний текст джерелаWang, R. G., W. J. Xu, Z. Hua, and X. Q. Zhou. "Research on the influence of slamming load on ship fatigue damage and its calculation method." In Trends in Maritime Technology and Engineering Volume 1, 481–91. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003320272-54.
Повний текст джерелаLiu, Mingxuan, Xinyang Fan, Danrong Song, Bin Zheng, and Meng Zhang. "Fatigue Analysis Method of Steel Containment of Floating Nuclear Power Plant." In Springer Proceedings in Physics, 1046–59. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_88.
Повний текст джерелаMatsufuji, Y., and T. Ohkubo. "On the Estimating Method of Fatigue Strength of the Brittle Materials under Repeated Impulsive Bending Load." In Fracture of Concrete and Rock, 70–79. New York, NY: Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4612-3578-1_8.
Повний текст джерелаCui, Jialin, Lijuan Li, Meng Zhang, Hongbing Liu, and Xianqiang Qu. "Dynamic Response Analysis of Floating Nuclear Power Plant Containment Under Marine Environment." In Springer Proceedings in Physics, 609–23. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_53.
Повний текст джерела"equivalent-load method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 480. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_51519.
Повний текст джерелаZenner, H., J. Liu, and C. Sanetra. "Fatigue Behaviour under Uniaxial and Multiaxial Service Load." In The Rainflow Method in Fatigue, 170–81. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-7506-0504-5.50027-8.
Повний текст джерелаТези доповідей конференцій з теми "Equivalent fatigue load method"
Tibbits, Patrick. "Fatigue Load Equivalent to Distribution of Loads From the US Population." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35678.
Повний текст джерелаHeinz, Benedikt. "AREVA Fatigue Concept: A New Method for Fast Fatigue Evaluation." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25935.
Повний текст джерелаAhn, Hyeonjeong, and Hyunkyoung Shin. "Fatigue Analysis of a 12-MW Wind Turbine Blade." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78214.
Повний текст джерелаHu, Dianyin, Jiaming Wei, Huawei Liu, Wulin Si, and Rongqiao Wang. "Fatigue Crack Growth of Multiple Load Path Structure Under Combined Fatigue Loading: Part I — Numerical Simulation." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25719.
Повний текст джерелаKrouse, Charles R., Grant O. Musgrove, Taewoan Kim, Seungmin Lee, and Muhyoung Lee. "Novel and Applicable Method to Determine Equivalent Strain Range and Equivalent Strain Direction Under Multiaxial Non-Proportional Loading." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90174.
Повний текст джерелаLigaj, Bogdan, and Karolina Karolewska. "Fatigue life calculations of structural elements by means of equivalent load spectrum and material properties for LCF and HCF." In INTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2018). Author(s), 2018. http://dx.doi.org/10.1063/1.5066397.
Повний текст джерелаPan, Ting, De Gao, Suo Zhang, Yunkai Gao, Lei Wang, Furong Xie, and Jiachi Tong. "Research on Fatigue Damage of Independent Suspension Support Structure for a Commercial Vehicle Based on Load Spectrum of Basic Vehicle." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2023. http://dx.doi.org/10.4271/2023-01-0807.
Повний текст джерелаZhang, Wei, Huili Liu, Qiang Wang, and Shan Jiang. "Fatigue Life Prediction Using Strain Intensity Factor and Equivalent Initial Flaw Size." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66505.
Повний текст джерелаBraccesi, Claudio, Filippo Cianetti, and Luca Landi. "Random Loads Fatigue: The Use of Spectral Methods Within Multibody Simulation." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84453.
Повний текст джерелаFarrow, Gary H., Andrew E. Potts, Andrew A. Kilner, Phillip P. Kurts, Simon Dimopoulos, and Eric Jal. "Development of a New, Correlated FEA Method of Assessing Mooring Chain Fatigue." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95882.
Повний текст джерелаЗвіти організацій з теми "Equivalent fatigue load method"
Messner, M. C., and T. L. Sham. Development of a multiaxial deformation measure and creep-fatigue damage summation for multiple load cycle types in support of an improved creep-fatigue design method. Office of Scientific and Technical Information (OSTI), June 2019. http://dx.doi.org/10.2172/1601810.
Повний текст джерелаBao, Jieyi, Xiaoqiang Hu, Cheng Peng, Yi Jiang, Shuo Li, and Tommy Nantung. Truck Traffic and Load Spectra of Indiana Roadways for the Mechanistic-Empirical Pavement Design Guide. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317227.
Повний текст джерелаRamakrishnan, Aravind, Ashraf Alrajhi, Egemen Okte, Hasan Ozer, and Imad Al-Qadi. Truck-Platooning Impacts on Flexible Pavements: Experimental and Mechanistic Approaches. Illinois Center for Transportation, November 2021. http://dx.doi.org/10.36501/0197-9191/21-038.
Повний текст джерелаRECONSTRUCTION OF FATIGUE DAMAGE STATE OF IN-SERVICE STEEL BRIDGES WITHOUT LOAD INFORMATION. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.259.
Повний текст джерелаCALCULATION METHOD OF ULTIMATE LOAD BEARING CAPACITY OF CONCRETE FILLED STEEL TUBULAR LATTICE COLUMNS. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.095.
Повний текст джерелаFATIGUE TESTS OF COMPOSITE DECKS WITH MCL CONNECTORS. The Hong Kong Institute of Steel Construction, December 2022. http://dx.doi.org/10.18057/ijasc.2022.18.4.7.
Повний текст джерелаCOLD FORMED STEEL SHEAR WALL RACKING ANALYSIS THROUGH A MECHANISTIC APPROACH: CFS-RAMA. The Hong Kong Institute of Steel Construction, September 2022. http://dx.doi.org/10.18057/ijasc.2022.18.3.2.
Повний текст джерелаSOUND RADIATION OF ORTHOTROPIC STEEL DECKS SUBJECTED TO MOVING VEHICLE LOADS. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.052.
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