International Journal of Mechanical Engineering Education最新文献

{"title":"Effect Valuation of Passive Exoskeleton for Overhead Work","authors":"Le Toan Thang","doi":"10.14445/23488360/ijme-v10i4p101","DOIUrl":"https://doi.org/10.14445/23488360/ijme-v10i4p101","url":null,"abstract":"","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"680 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74755896","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}

{"title":"Comparison of Performance of Internal Combustion Engine Fuelled with Diesel and Biodiesel (used Vegetable Oil) Blends","authors":"Musadiq Rasool Wani, Vivek Sachan","doi":"10.14445/23488360/ijme-v10i4p102","DOIUrl":"https://doi.org/10.14445/23488360/ijme-v10i4p102","url":null,"abstract":"","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88221044","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}

{"title":"Investigating mechanical engineering students’ approaches to opportunity recognition process","authors":"P. Shekhar, Heydi Dominguez, Jin-woo Lee, Samantha Augustin","doi":"10.1177/03064190231169129","DOIUrl":"https://doi.org/10.1177/03064190231169129","url":null,"abstract":"The process of opportunity recognition is pivotal to engineering design, fostering technological innovation and entrepreneurship. Although there are multiple studies conducted in the area of opportunity recognition studying the behaviors of entrepreneurs, examining engineering students’ approaches have been underexplored. There is a lack of research in regards to opportunity recognition processes among engineering students, particularly in the context of design education. The presented study addresses this gap by qualitatively examining approaches to opportunity recognition among mechanical engineering students enrolled in an engineering design course. Using a sample of 23 mechanical engineering students, the approaches to opportunity recognition were analyzed using students’ responses to open-ended survey questions and student group discussions. From the analysis of the qualitative data, four key themes emerged regarding the improvement of the device and process, user consideration, environmental sustainability, and information and resources accessed by students. The findings provide a deeper understanding that can be used to inform educational practices and further research in the area of opportunity recognition in engineering education settings.","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44880071","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}

{"title":"Predicting the yield surface in a two-dimensional stress system: A student's laboratory experiment","authors":"M. Muscat, P. Mollicone","doi":"10.1177/03064190231169251","DOIUrl":"https://doi.org/10.1177/03064190231169251","url":null,"abstract":"This paper is concerned with the determination of the yield surface in a two-dimensional stress field within an undergraduate Mechanics of Materials student laboratory experiment. In this experiment, the two-dimensional stress field is obtained by subjecting a steel specimen to a combined bending and torsion load. The motivation for the paper was the lack of correlation between the von Mises and Tresca yield criteria and the principal stresses calculated at the load at which students were predicting material yielding. The latter yield loci were based on the uniaxial 0.2% proof stress. The lack of correlation was creating a lot of frustration amongst students. This is undesirable, especially within an undergraduate student experiment. Two hypotheses for the lack of agreement were considered. The first hypothesis was the uncertainty involved in the method that the students were using to predict the onset of material yielding. The second hypothesis was that the specimens being used for the experiment had anisotropic properties, given that little information on their manufacture was provided. The need for determining accurate yield stress values and on methodologies found in literature that are used to determine the material proof stress or lower yield stress in a uniaxial tensile test are discussed. Four methods taken from literature are used and adapted to detect the first yield of the specimen under a combined bending and torsional load. The resulting experimentally yield loci are compared with the theoretical von Mises and Tresca isotropic yield loci over half of the second quadrant of the two-dimensional principal stress field plot. Correlation between the four methods was quite good but not so when compared with the von Mises and Tresca’ loci. A lack of correlation occurred for an increasing torsional load indicating a possible anisotropy in the material properties. These results hinted towards the second hypothesis. A number of tensile test specimens were hence heat treated so as to induce isotropy in the material properties. The combined loading experiments were repeated using the heat-treated samples. A very good correlation was obtained between the experimental yield points for the two-dimensional stress field and the von Mises and Tresca yield loci. This good correlation for the heat-treated specimens confirmed the authors’ second hypothesis on the anisotropic properties in the as-received state and, therefore, the requirement to heat treat the specimens for a meaningful student undergraduate laboratory activity.","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46444728","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}

{"title":"Dual-Axis Solar Tracking Systems for Improved Solar Power Generation Efficiency","authors":"","doi":"10.56452/2023-04/001","DOIUrl":"https://doi.org/10.56452/2023-04/001","url":null,"abstract":"","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"35 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81065704","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}

{"title":"SPILLED OIL CLEANING DEVICE","authors":"","doi":"10.56452/2023-04/003","DOIUrl":"https://doi.org/10.56452/2023-04/003","url":null,"abstract":"","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91036243","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}

{"title":"Exploring the effects of learning assistants on instructional team–student interactions in statics","authors":"Valerie Vanessa Bracho Perez, Alexandra Coso Strong","doi":"10.1177/03064190231166323","DOIUrl":"https://doi.org/10.1177/03064190231166323","url":null,"abstract":"Within a mechanical engineering curriculum, Statics is often a barrier course for students, as their performance in Statics can impact their overall academic success. Recent efforts to enhance students’ learning in fundamental engineering courses have included integrating learning assistants (LAs), undergraduate peers who have previously excelled in the course, into the course's instructional team. The purpose of this study is to explore one enactment of a Statics classroom with LAs, the interactions that characterize it, and the impact it has on the students and instructional teams. A qualitative case study of a statics course with LAs was conducted leveraging Kranzfelder and colleagues’ teaching discourse moves framework to deductively and inductively analyze the data collected. The value of having LAs within Statics was prevalent throughout the interactions and from the perspective of the LAs, instructors, and students. However, the LAs remained an untapped resources for many in the course. The results of this study have implications for mechanical engineering departments, Statics instructors and LAs, and research.","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"51 1","pages":"294 - 318"},"PeriodicalIF":1.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42792939","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}

{"title":"Exploring natural language processing in mechanical engineering education: Implications for academic integrity","authors":"Jonathan Lesage, R. Brennan, Sarah Elaine Eaton, B. Moya, B. McDermott, J. Wiens, Kai Herrero","doi":"10.1177/03064190231166665","DOIUrl":"https://doi.org/10.1177/03064190231166665","url":null,"abstract":"In this paper, the authors review extant natural language processing models in the context of undergraduate mechanical engineering education. These models have advanced to a stage where it has become increasingly more difficult to discern computer vs. human-produced material, and as a result, have understandably raised questions about their impact on academic integrity. As part of our review, we perform two sets of tests with OpenAI's natural language processing model (1) using GPT-3 to generate text for a mechanical engineering laboratory report and (2) using Codex to generate code for an automation and control systems laboratory. Our results show that natural language processing is a potentially powerful assistive technology for engineering students. However, it is a technology that must be used with care, given its potential to enable cheating and plagiarism behaviours given how the technology challenges traditional assessment practices and traditional notions of authorship.","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48513839","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}

{"title":"Examination on Properties of Wrinkled Pipes in Helical Coil Heat Exchangers by CFD","authors":"Nallusamy S, S. K, Balaji R","doi":"10.14445/23488360/ijme-v10i3p101","DOIUrl":"https://doi.org/10.14445/23488360/ijme-v10i3p101","url":null,"abstract":"- In the current manufacturing scenario, the Helical Coil Heat Exchangers (HCHE) are produced by three roll bending of pipes resulting in the formation of wrinkles on the inner edges of the pipes. The subject of this work is to compare the heat transfer characteristics and fluid flow behaviour in the wrinkled pipe and ideal pipe HCHE. Computational Fluid Dynamics (CFD) analysis for ideal pipe and wrinkled pipe heat exchangers are carried out to investigate heat transfer and fluid flow behaviour. The methodology of CFD is also validated using theoretical analysis. Constant properties and temperature-dependent properties of fluid passing in the heat exchanger are taken for modelling of CFD calculation. The final results revels that, wrinkled pipes have more heat transfer rate and effectiveness than ideal pipes, head loss is increased due to the presence of wrinkles and the rate of mass flow is reduced in wrinkled pipes due to reduction in volume inside the pipe","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90323568","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}

{"title":"Design and Analysis of Different Formability Parameters on Single Point Progressive Method","authors":"Kannarasu V, H. S, Nallusamy S","doi":"10.14445/23488360/ijme-v10i3p102","DOIUrl":"https://doi.org/10.14445/23488360/ijme-v10i3p102","url":null,"abstract":"","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"57 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84575745","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}