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Effect of thin obstacles heights on heat transfer and flow characteristics in microchannels 薄障碍物高度对微通道传热和流动特性的影响
IF 0.7
Archive of Mechanical Engineering Pub Date : 2023-12-29 DOI: 10.24425/ame.2023.148699
Małgorzata Kmiotek, R. Smusz
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引用次数: 0
148698 148698
IF 0.7
Archive of Mechanical Engineering Pub Date : 2023-11-30 DOI: 10.24425/ame.2023.148698
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引用次数: 0
The constructional increase of crumbling effectiveness 摇摇欲坠的效率的结构性提高
Archive of Mechanical Engineering Pub Date : 2023-11-06 DOI: 10.24425/ame.2007.131564
F. Chwarścianek
{"title":"The constructional increase of crumbling effectiveness","authors":"F. Chwarścianek","doi":"10.24425/ame.2007.131564","DOIUrl":"https://doi.org/10.24425/ame.2007.131564","url":null,"abstract":"The study presents an attempt at increasing the effectiveness o f the crushing process through the application of a new original crumbling system. In the process of crushing materials, friction is present in many crushers as extremely significant or even dominating factor. The proposed construction solution is characterized by the occurrence – always on one of the working surfaces – of the static friction factor, and thus a friction that is greater than the kinetic friction.","PeriodicalId":45083,"journal":{"name":"Archive of Mechanical Engineering","volume":"11 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Research on vibroactivity of technological equipment based on the analysis of dynamical processes and spectrum of vibrations 基于动力过程和振动谱分析的工艺设备振动活性研究
Archive of Mechanical Engineering Pub Date : 2023-11-06 DOI: 10.24425/ame.2007.131554
E. Juzenas, R Jonusas, K. Juzenas, V. Barzdaitis
{"title":"Research on vibroactivity of technological equipment based on the analysis of dynamical processes and spectrum of vibrations","authors":"E. Juzenas, R Jonusas, K. Juzenas, V. Barzdaitis","doi":"10.24425/ame.2007.131554","DOIUrl":"https://doi.org/10.24425/ame.2007.131554","url":null,"abstract":"","PeriodicalId":45083,"journal":{"name":"Archive of Mechanical Engineering","volume":"11 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The application of optimization method to control CI engine exhaust emission under steady-state conditions 优化方法在内燃机稳态工况下尾气排放控制中的应用
Archive of Mechanical Engineering Pub Date : 2023-11-06 DOI: 10.24425/ame.2009.132085
K. Brzozowski, J. Nowakowski
{"title":"The application of optimization method to control CI engine exhaust emission under steady-state conditions","authors":"K. Brzozowski, J. Nowakowski","doi":"10.24425/ame.2009.132085","DOIUrl":"https://doi.org/10.24425/ame.2009.132085","url":null,"abstract":"In this paper, the semi-empirical model, formulated in the earlier paper [1], was used to control engine exhaust emission under steady-state conditions. The presented optimization method enables us to find the values of engine control parameters that lead to minimization of nitrogen oxide emission. Moreover, the presented method ensures proper engine operating parameters such as mean indicated pressure, thermal efficiency and maximum pressure in the cylinder. Results of numerical calculations are compared with experiment data. An acceptable accuracy was achieved.","PeriodicalId":45083,"journal":{"name":"Archive of Mechanical Engineering","volume":"10 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the problem of unknown history in health monitoring 健康监测中历史未知问题的探讨
Archive of Mechanical Engineering Pub Date : 2023-11-06 DOI: 10.24425/ame.2009.132093
K. H. Laermann
{"title":"On the problem of unknown history in health monitoring","authors":"K. H. Laermann","doi":"10.24425/ame.2009.132093","DOIUrl":"https://doi.org/10.24425/ame.2009.132093","url":null,"abstract":"A crucial feature in health monitoring of already existing structures is to be seen particularly in identifying their topical internal structural parameters and controlling their remaining bearing capacity in the course of ageing processes. This is commonly carried out by measuring the deformations/strains caused by test-loading and calculating the parameters on the basis of the metered data. In the case of elastic response of materials, the information on the parameters is directly related to the time of measurement; in the case of visco-elastic response, however, the history of the time-depending structural response during the period between initial loading and initiating the test-measurements is generally unknown. The problem exists, then, to separate the superimposed strains due to the existing state and to the test-load. For solving the problem, at first the relevant relations between stress/strain and the visco-elastic parameters are considered. Then a procedure will be described how to determine the strain state owing to the test-load only and to calculate the relevant parameters as functions of time. According to the principle of time-shift invariance, the results describe the time-depending response of the visco-elastic material, no matter at which time the loads are applied. The presented method will be illustrated by two simple but instructive examples.","PeriodicalId":45083,"journal":{"name":"Archive of Mechanical Engineering","volume":"10 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hypothetical fracture at fibber-matrix interface in Cu-SiC composite due to thermal stresses 热应力作用下Cu-SiC复合材料纤维-基体界面断裂
Archive of Mechanical Engineering Pub Date : 2023-11-06 DOI: 10.24425/ame.2008.131613
P. Czarnocki, G. Krzesiński, P. Marek, T. Zagrajek
{"title":"Hypothetical fracture at fibber-matrix interface in Cu-SiC composite due to thermal stresses","authors":"P. Czarnocki, G. Krzesiński, P. Marek, T. Zagrajek","doi":"10.24425/ame.2008.131613","DOIUrl":"https://doi.org/10.24425/ame.2008.131613","url":null,"abstract":"","PeriodicalId":45083,"journal":{"name":"Archive of Mechanical Engineering","volume":"10 20","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Driving techniques for minimizing fuel consumption during record vehicle competition 驾驶技术，以尽量减少燃料消耗，在创纪录的车辆竞争
Archive of Mechanical Engineering Pub Date : 2023-11-06 DOI: 10.24425/ame.2009.132086
K. Rogowski, R. Maroński
{"title":"Driving techniques for minimizing fuel consumption during record vehicle competition","authors":"K. Rogowski, R. Maroński","doi":"10.24425/ame.2009.132086","DOIUrl":"https://doi.org/10.24425/ame.2009.132086","url":null,"abstract":"The problem of optimal driving techniques during fuel economy competition is considered. The kinetic model of the record wheeled vehicle is proposed. It is regarded as a particle moving on a trace with variable slope angle. Engine charac-teristics are taken into account. The fuel consumption is minimized as the vehicle goes over a given distance. The problem is formulated in optimal control. The direct pseudospectral Chebyshev’s method is employed. The motion of student’s vehicle representing the Faculty of Power and Aeronautical Engineering during Shell Eco-marathon in Nogaro, France, in 2006 , is used as an example.","PeriodicalId":45083,"journal":{"name":"Archive of Mechanical Engineering","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The influence of internal vane on uniform velocity distribution in the cross-flow fan 内叶片对横流风机内均匀速度分布的影响
Archive of Mechanical Engineering Pub Date : 2023-11-06 DOI: 10.24425/ame.2009.132088
J. Stacharska-Targosz, M. Chmielowiec
{"title":"The influence of internal vane on uniform velocity distribution in the cross-flow fan","authors":"J. Stacharska-Targosz, M. Chmielowiec","doi":"10.24425/ame.2009.132088","DOIUrl":"https://doi.org/10.24425/ame.2009.132088","url":null,"abstract":"In this paper the authors present the test carried out to obtain the uniform velocity distribution at the outlet cross section of flow fan. In the investigations the inner flat vane mounted inside of the impeller has been applied. For various angular position of the inner vane , one obtained different flow structures as well as different velocity distributions. The analysis of the obtained results is presented in form of graphs shown in 10 figures, juxtaposing flow phenomena with velocity distributions. Numerical flow simulation with the use of Flo++ program based on the Finite Volume Method was carried out.","PeriodicalId":45083,"journal":{"name":"Archive of Mechanical Engineering","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Modelling and experimental verifications of energy absorbed by constructional shields under firing 火力作用下结构防护罩吸收能量的建模与实验验证
Archive of Mechanical Engineering Pub Date : 2023-11-06 DOI: 10.24425/ame.2007.131542
Z. Zatorski
{"title":"Modelling and experimental verifications of energy absorbed by constructional shields under firing","authors":"Z. Zatorski","doi":"10.24425/ame.2007.131542","DOIUrl":"https://doi.org/10.24425/ame.2007.131542","url":null,"abstract":"","PeriodicalId":45083,"journal":{"name":"Archive of Mechanical Engineering","volume":"30 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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