International Journal of Mechanical Engineering Education最新文献_第6页

Active learning approach to enhance rotor dynamics understanding: A classroom demonstration 主动学习方法提高转子动力学的理解:课堂演示

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-03-20 DOI: 10.1177/03064190231163487

L. Bernardini, E. Di Gialleonardo

{"title":"Active learning approach to enhance rotor dynamics understanding: A classroom demonstration","authors":"L. Bernardini, E. Di Gialleonardo","doi":"10.1177/03064190231163487","DOIUrl":"https://doi.org/10.1177/03064190231163487","url":null,"abstract":"In the last decades, novel teaching strategies have been increasingly adopted to improve and enhance the students learning process by promoting their involvement and engagement during classes. In this context, this work presents a laboratory experience proposed to the third-year bachelor students of the course of ‘Mechanics of Vibrations’, held at the faculty of mechanical engineering of Politecnico di Milano. The experience consisted in the presentation of a rotor test bench specifically designed for educational purposes. Main concepts of rotor dynamics were analysed and showed, together with a critical discussion on the discrepancies between the Jeffcott–Laval model and experimental results. This project, that is one of the outcomes of an educational project for post-covid teaching promoted by Politecnico di Milano, involved almost 200 students in total. An anonymous evaluation survey proposed to students revealed a general appreciation of the experience, especially for the possibility of visualising important theoretical concepts. Given the positive feedback, the demonstration will be repeated in the next academic year, with some changes according to students’ suggestions.","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"51 1","pages":"209 - 224"},"PeriodicalIF":1.4,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44900923","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

Spatial visualization for development of visual thinking and cognitive abilities among mechanical engineering students through tool design ideation 空间可视化通过工具设计思维促进机械工程专业学生视觉思维和认知能力的发展

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-03-20 DOI: 10.1177/03064190231164049

G.V.S.S. Sharma

引用次数: 1

Metacognition instruction and repeated reflection in a fluid mechanics course: Reflective themes and student outcomes 流体力学课程中的元认知教学与重复反思:反思主题与学生成果

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-03-16 DOI: 10.1177/03064190231164719

R. Clark, A. Kaw, R. Guldiken

{"title":"Metacognition instruction and repeated reflection in a fluid mechanics course: Reflective themes and student outcomes","authors":"R. Clark, A. Kaw, R. Guldiken","doi":"10.1177/03064190231164719","DOIUrl":"https://doi.org/10.1177/03064190231164719","url":null,"abstract":"When students repeatedly reflect, it can enhance their metacognitive abilities, including self-regulatory skills of planning, monitoring, and evaluating. In a fluid mechanics course for undergraduates at a large southeastern U.S. university, in-class problem solving in a flipped classroom was coupled with intentional metacognitive skills instruction and repeated reflection to enhance metacognition. The weekly reflective responses were coded by two analysts to identify the recurring themes and uncover evidence of the development and/or reinforcement of self-regulating behaviors for academic management. To enable a comparison, a flipped classroom without the metacognitive instruction and repeated reflection was also implemented (i.e., non-intervention group). The two cohorts completed identical final exams. Based on our preliminary analysis with year one data, a statistically and practically-significant difference between the two cohorts was found with the free-response scores on the final exam in favor of the intervention cohort that had received the metacognitive support (p < 0.0005; Cohen's d = 0.72). Also, the Metacognitive Activities Inventory (MCAI) indicated a significantly-higher positive change in self-regulatory behavior for the intervention cohort (p = 0.001; d = 0.50). Focus groups were conducted to gather students’ perspectives on the reflective activity, with differences found by demographic group. In addition, a significantly higher proportion of females (versus males) viewed the reflections in a positive manner (p = 0.05). Significant associations between themes in the weekly reflections and direct knowledge measures were also uncovered. This included a positive relationship between academic self-management (i.e., diligence and carefulness) and exam performance. Overall, our preliminary results point to a desirable impact of metacognitive instruction and repeated reflection on knowledge outcomes, metacognitive skills, and self-regulatory behaviors.","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"51 1","pages":"243 - 269"},"PeriodicalIF":1.4,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45650975","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

Development of a low-cost data acquisition system for a vapor compression refrigeration experimental workbench 蒸汽压缩制冷实验台低成本数据采集系统的研制

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-03-03 DOI: 10.1177/03064190231161274

João Pedro Severo Foresto, Weliton Soares Martins, Taynara Geysa S. do Lago, Adriano da Silva Marques

{"title":"Development of a low-cost data acquisition system for a vapor compression refrigeration experimental workbench","authors":"João Pedro Severo Foresto, Weliton Soares Martins, Taynara Geysa S. do Lago, Adriano da Silva Marques","doi":"10.1177/03064190231161274","DOIUrl":"https://doi.org/10.1177/03064190231161274","url":null,"abstract":"Refrigeration and air conditioning systems are essential in residential, commercial, and industrial segments. The data acquisition and the control of equipment results in an improvement in efficiency and a decrease in energy consumption, considering that the data obtained bring a better visualization and understanding of the components of the system. This work aims to automate data acquisition from a vapor compression refrigeration workbench by developing a low-cost data acquisition system. The system was developed using Arduino and LabView with the assistance of LINX software. After the communication between the controller and the program, six thermocouples were installed on the refrigeration workbench to acquire the temperatures in the program of the data acquisition system. For reading system pressure values, a camera was used to capture images from six analog pressure gauges. From reading these data, the pressure-enthalpy diagram of the thermodynamic cycle was obtained. The experimental refrigeration workbench has been used in teaching and research activities. The data acquisition system developed for the refrigeration workbench improved the realization of experiments, allowing a better comparison between experimental and theoretical results.","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"51 1","pages":"194 - 208"},"PeriodicalIF":1.4,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45668304","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: 1

Mixing Zone of Single Port Submerged Diffuser with Threaded Outlet for Thermal Discharge from Thermal Power Stations 火电厂热排放单通道螺纹出口淹没扩散器的混合区

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-02-28 DOI: 10.14445/23488360/ijme-v10i2p102

Mofreh A. Hashim, Ibrahim R. Teaima

引用次数: 0

Modelling of Hardy Cross Method for Pipe Networks 管网Hardy交叉法的建模

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-02-28 DOI: 10.14445/23488360/ijme-v10i2p101

Pankaj Dumka, N. Samaiya, S. Gandhi, Dhananjay R. Mishra

引用次数: 1

Evaluation of the impact of gamification on students’ performance and engagement in manufacturing engineering courses 游戏化对学生在制造工程课程中的表现和参与度的影响评估

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-02-28 DOI: 10.1177/03064190231160357

R. Moliner-Heredia, J. V. Abellán-Nebot

引用次数: 2

From playground swings to sway control of cranes: An active pendulum experiment 从游乐场秋千到起重机的摇摆控制：一个主动摆实验

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-02-23 DOI: 10.1177/03064190231159330

Adrian Stein, Tarik Parcic, T. Singh

{"title":"From playground swings to sway control of cranes: An active pendulum experiment","authors":"Adrian Stein, Tarik Parcic, T. Singh","doi":"10.1177/03064190231159330","DOIUrl":"https://doi.org/10.1177/03064190231159330","url":null,"abstract":"Dynamics is a core discipline in Mechanical and Aerospace Engineering programs and with the ubiquitous nature of control in modern-day applications, the field of mechatronics has gained popularity. Mechatronics refers to the field of engineering which integrates the engineering disciplines of mechanical, control, electronics, and computing. To create a testbed to illustrate a tabletop mechatronics system, the paper details the design, and fabrication of an active pendulum whose length can be changed in real-time using solenoids. This permits illustrating two concepts: (1) damping of pendulum oscillations which emulates the sway of a crane and (2) amplification of the oscillations which emulates the pumping of a playground swing. The paper describes the steps prior to experimental validation which includes: modeling, system identification, signal processing, and controller implementation. Numerical simulations are used to prototype the controller and eventually to compare the simulation results to the experimental ones. The results of all the experiments illustrate a close match between the simulated and experimental results. To permit reproduction of the experiment, the design details and code to implement the controllers are posted in a public repository.","PeriodicalId":39952,"journal":{"name":"International Journal of Mechanical Engineering Education","volume":"51 1","pages":"139 - 154"},"PeriodicalIF":1.4,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48930426","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

Mechanism of the week: An approach for improving student engagement, interest, and understanding of course material 每周机制:一种提高学生参与、兴趣和理解课程材料的方法

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-02-22 DOI: 10.1177/03064190231159358

M. Rhudy

引用次数: 2

Editorial of International Journal of Mechanical Engineering Education 《国际机械工程教育杂志》社论

IF 1.4

International Journal of Mechanical Engineering Education Pub Date : 2023-02-05 DOI: 10.1177/03064190231155338

L. D. Da Silva

引用次数: 1