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(Importance of learning from analysis to manufacturing technology as a skill set)
Takashi FUKUI
Session ID: 101
Published: 2024
Released on J-STAGE: May 25, 2025
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The author attempted to extract important elements for mechanical design education by considering the design process. As the results of considering the design process of the model Stirling engines that the author has developed, it was noticed that the final design was found by moving back and forth among analysis, idea generation, modeling, and manufacturing technology. It was also confirmed that this design process is not limited to model Stirling engines, but the designs proceeded through similar processes in other development cases as well. Based on these considerations, it is desired that the design process from analysis to manufacturing technology should be conducted as a process, and it is also desired to teach these as a skill set in mechanical design education. As an example of this approach, the Stirling engine exercise in Depertment of Mechanical Engineering in the University of Tokyo is introduced.
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Yoshitaka KATO
Session ID: 103
Published: 2024
Released on J-STAGE: May 25, 2025
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First grade students of Mechanical Engineering Program could not make low temperature differential Stirling engine within 270 minutes as a first year seminar. The 270 minutes means three 90-minute works. The prototype of the low temperature differential Stirling engine had been made by one person within 7 hours. The fail by the students may be caused by the papers showing the shapes of parts made of poly-vinyl chloride. The paper was designed for the paerson who made low temperature differential Stirling engine alone. Therefore, the pattern papers should be improved to promote a division of work. The project for 12 students to make a low temperature differential Stirling engine is planned. When the 12 students can use 3 hand drills, three 1.0mm-drill-bits, three 3.0mm-drill-bits, 3 countersink-drills, 3 scissors, 3 long nose pliers, 1 cutter knife, and 1 hacksaw, the planned project suggests the low temperature differential Stirling engine is made within 180miniutes. This 180 minutes means two 90-minute works.
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Yoshitaka KATO
Session ID: 104
Published: 2024
Released on J-STAGE: May 25, 2025
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Prototype of tools for learning the force balances of chopsticks has been made. When chopsticks hold something, two tips of chopsticks push by same strength on each other. However, it is difficult to find out the scientific report which discusses force balances of chopsticks, although there are some research papers discussing chopsticks. Many of them discussed shape of hand, and do not explain the method of chopsticks training clearly. Prototype proposed here is made of disposable round chopsticks, vinyl tape, and thin plastic sheet. When the prototype chopsticks for training are grasped by traditional type of gasping chopsticks, thumb bends thin plastic sheets. Therefore, the shapes of plastic sheets suggests whether or not thumb holds chopsticks Accuracy of the tips of the chopsticks is visualized by pinching PET Bottle chap. Validity of the prototype of chopsticks for chopsticks-training and the method was suggested by chopsticks use by the non-dominant hand.
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-Survey results from a guided tour for children-
Chiaki KIKYO
Session ID: 112
Published: 2024
Released on J-STAGE: May 25, 2025
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Starting in August 2023, the Toyota Commemorative Museum of Industry and Technology has been holding regular guided tours for younger generations to create an opportunity for them to become interested in engineering. As we have reported in the past, the event has been well received by participants every time. However, we have not analyzed the evaluations of the accompanying parents. Therefore, in this study, we compared the evaluations of participants and their parents to verify the importance of parents. As a result, we concluded that it is important for parents to realize that various phenomena in everyday life are connected to the basic technologies that support advanced technology, to get them interested, and to provide them with opportunities to actually show these to their children.
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(Student Creativities and Ideas shown in Building Autonomous Driving Vehicles)
Takashi YAMANOUE, Yasufumi SEKINE, Naoki KAGAWA, Masaaki KOBAYASHI, Mi ...
Session ID: 113
Published: 2024
Released on J-STAGE: May 25, 2025
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Autonomous driving is a technology with a wide range of applications and will be a growth factor for many industries. Therefore, expectations for autonomous driving are high. Against this background, for the past three years, the authors have been offering a technical education course in which students build simple type autonomous driving electric vehicles to help them understand the mechanisms behind autonomous driving. In the first year of this course, students had a lot of time to complete autonomous driving vehicle. However, in the 2nd and 3rd year of this course, students had some reserve time. For this reason, students began to develop their own ideas. This paper introduces the students' creativities and ideas.
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Yoshifusa MATSUURA
Session ID: 114
Published: 2024
Released on J-STAGE: May 25, 2025
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Traditional education in manufacturing skills has relied on imitation learning and repetitive practice to control the body. However, in reality, 'embodied knowledge,' which refers to understanding which sensations arise in specific body parts and how they contribute to skill acquisition, is crucial. In this study, we clarify the key bodily sensations essential for skill acquisition through a method of skill information structuring proposed by the authors. By presenting this information to learners and making them aware of these sensations, we demonstrate educational effectiveness and discuss how this acquisition process can create new value in the future of the manufacturing field.
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Kaiha MIYAHARA, Ryozo ISHIWATA
Session ID: 121
Published: 2024
Released on J-STAGE: May 25, 2025
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Principles of phenomena related to fluid dynamics are often misperceived. Introductory science books. Internet articles, and TV programs have introduced various phenomena, such as the principle of wings and the pressure of jet streams, and over the year misperceptions have continued to be transmitted and spread. We aim to develop experimental materials to prevent these misperceptions and promote correct understanding. In this report, we focus on the wing principle and introduce teaching materials that can be visually recognized as misrecognition, since we have produced them.
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Makiko OKAMOTO, Yoichi SHIMIZU, Kazuo KADOTA
Session ID: 201
Published: 2024
Released on J-STAGE: May 25, 2025
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This study explores heat transfer through natural convection experiments and thermal simulations of an educational coffee roaster. Using a simple silicon rubber heater, students measure heat transfer coefficients, bridging theory and practice. The simulation of the roaster, powered by a gas stove, analyzes temperature distribution and heat flow, validated by experimental data. Results show that integrating experiments and simulations enhances students’ understanding of heat transfer, offering valuable insights into optimizing roaster dsign and heat efficiency, thus linking theoretical knowledge with practical application.
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Kazuo KADOTA
Session ID: 202
Published: 2024
Released on J-STAGE: May 25, 2025
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STEAM education, which was born in the United States in the 2000s, is spreading in various countries and regions. In recent years, STEAM education initiatives have been spreading in Japan. We have developed a coffee roaster as a teaching material for STEAM education. Immediately after roasting, the coffee beans have a high temperature of about 230°C, so if they are left at room temperature, the roasted beans will be baked inside the beans, and the roasting condition cannot be finished as they should be. Therefore, coffee beans immediately after roasting require a cooling machine that rapidly cools them by applying cold air. In this study, we summarize the contents of the development of a cooling machine for roasted beans attached to a self-made coffee roaster.
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'Measurement of Mechanical Vibration'
Norio YOSHIKAWA
Session ID: 203
Published: 2024
Released on J-STAGE: May 25, 2025
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In the Department of Mechanical Engineering at the Kanagawa Institute of Technology, second-year university students have experimental classes on basic topics in the specialized fields of mechanical and electrical engineering in order to acquire the ability to link actual phenomena with theory. Software for vibration waveform analysis was developed for the experimental class "Measurement of Mechanical Vibrations," where the flipped classroom approach was introduced and utilized. This software allows for reading values using cursors, similar to an oscilloscope. Using this software, students were able to analyze the vibrations of a single-degree-of-freedom system, and their results will be presented.
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(Collaboration with Classes)
Ryozo ISHIWATA, Akira ADACHI, Naoto HAGINO
Session ID: 204
Published: 2024
Released on J-STAGE: May 25, 2025
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Smartphones have become an everyday necessity. Experiments that utilize their convenience and functions can help students to better understand physics. In this report, we introduce a method to analyze the motion of a circular body rolling on a horizontal plane or an inclined plane by videotaping it with a smartphone. In particular, students can deepen their understanding of the theory of rigid body motion through actual experiments on the rotational motion of rigid bodies, which they learn in class.
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Seiji KOMIYA, Toshihiro WAKITA
Session ID: 211
Published: 2024
Released on J-STAGE: May 25, 2025
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In Japan, In japan, the computerization of education is progressing towards Society 5.0. The Department of Engineering provides a place to learn the fusion of informatics, which makes full use of ICT technologies such as IoT and AI, and mechanical engineering, which enables manufacturing in real space, with the aim of helping engineers acquire AI skills. Additionally, the need for AI education from middle and high school education as indicated in Society 5.0 is increasing. Since AI education involves abstract concepts, it is thought that it is possible to promote and establish understanding by not only classroom lectures but also practical training using AI. Until now, we have developed KAIT-QV, an automated driving education material that uses AI on a 1/10 model vehicle, as an integrated teaching material that allows you to practically learn the fusion of mechanical engineering and artificial intelligence. KAIT-QV is ideal as a teaching material for learning about vehicle mechanisms, but the driving course and incidental equipment are large, so it was difficult to try it out easily. Therefore, we developed KAIT Qt, an AI educational material that allows you to experience teaching, learning, and AI driving in a consistent manner, assuming a limited indoor space. Furthermore, we held hands-on courses and competitions using KAIT Qt to contribute to improving understanding of AI and motivation to learn. In this paper describes examples and effects.
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Keiichiro TAKATO
Session ID: 212
Published: 2024
Released on J-STAGE: May 25, 2025
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The ‘Taketombo’ launch pad has made it possible to objectively determine the flight performance of all types of ‘Taketombo’ type flying objects, not only ‘Take-tombo’(=bamboo-tombo) but also ‘plastic-tombo’ and ‘paper-tombo’. However, the preparation to determine the flight performance of each flying object is a manual process, and fully automatic flight performance determination is required to minimise differences in flight performance due to variations in the position of the flying objects on the launch pad by individuals and to obtain data on many flying objects at once. Therefore, as a first step in this paper, an attempt was made to enable multiple human-independent flights with a single preparation. As a result, at the present time, it was possible to perform everything from the conception of the bellows-type robot hand that simultaneously grasps the ‘Taketombo’ while extending it from a retracted state to an extended state, and the linear guide for vertical movement, to the confirmation of the operation. This has provided the basis for enabling highly accurate measurement by using the robot hand to grasp at the same position and with the same grasping force as when grasping with the human hand. However, the rotation of the hand tower in the Z-axis direction and the continuous firing of the entire hand tower in a continuous motion have not been implemented.
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- Melting Point and Latent Heat of Melting with Mannitol-Water Mixture -
Ryota NOMURA, Akira HOSHI, Hidetoshi OHKUBO
Session ID: 213
Published: 2024
Released on J-STAGE: May 25, 2025
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Recently, the thermal storage technology, which stores and utilizes a low-density energy around us, has been attracting attention. By combination with various environmental and energy technologies, a utilization technology of unused energy can contribute to the construction of a low-carbon society. The technologies to utilize unused heat can be thought of as the 3R use of heat. The recycle technologies include heat pumps, which reuse low-temperature heat as high-temperature heat with little electricity, and the thermoelectric power generation technology, which converts the thermal energy into electrical energy. The thermoelectric conversion elements (TCE) used in a thermoelectric power generation technology utilize the Seebeck effect, A high-temperature and a low-temperature heat source are required at both junctions of the TCE. For practical use, it is desirable that the fluctuation in the temperature of the high-temperature heat source is small. In this study, we propose a thermoelectric power generation system that can effectively utilize intermittent heat sources by using latent heat storage technology.
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Sora SAITO, Taiga ITO, Rena KAWAI
Session ID: 214
Published: 2024
Released on J-STAGE: May 25, 2025
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Even university students in humanities fields increasingly face situations where knowledge of various scientific concepts, such as data science and programming, is required. This study explores how humanities students can practically learn scientific knowledge by building a one-person hovercraft. The construction process involved using inexpensive and readily available materials, such as inflatable rings, MDF boards, and a blower, to create a hovercraft capable of supporting a rider. To evaluate the effectiveness of the hovercraft, a series of experiments were conducted. These experiments measured the force required to move the hovercraft under different conditions: with and without a rider, and with the blower on and off. The results confirmed a significant reduction in frictional resistance when the hovercraft was activated, as indicated by the measured values. This hands-on project provided humanities students with the opportunity to understand physical principles, such as friction, through direct experimentation. Additionally, by scientifically evaluating the data, it reinforced a scientific perspective in their learning. Through this project, humanities students experienced the process of deepening their understanding of scientific inquiry.
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Hideki ONODERA
Session ID: 221
Published: 2024
Released on J-STAGE: May 25, 2025
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As the demand for iron increased during the Sengoku period, the Izumo region developed larger Tatara and Tenbin-Fuigo. In the Izumo area, human-powered Fuigo was used until the mid-Meiji period. On the other hand, in the northern Tohoku region, waterwheel-powered Fuigo were used from the 16th century. The blast furnace steel mills built at the end of the Tokugawa period used Fuigos, which were driven by water wheels. This report provides an overview of Fuigo, which was used in the steel manufacturing industry in the Pacific Ocean side of the northern Tohoku region, where iron sand manufacturing was popular.
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Akira MATSUMOTO, Hitoshi TSUNASHIMA
Session ID: 222
Published: 2024
Released on J-STAGE: May 25, 2025
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Research and development of new urban transit systems in Japan began with monorails in the 1960s, followed by the development of the so-called “New Urban Transit System” (AGT) in 1970, and the world's first unmanned automatic train operation was put to practical use in Kobe and Osaka in 1981. Automatic train operation was also subsequently introduced and expanded to subway lines.
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Takabumi FUKUDA, Kyoko HAMAJIMA, Mizuho NAKAMURA, Yasuhiro MINAMIYAMA
Session ID: 223
Published: 2024
Released on J-STAGE: May 25, 2025
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The 13th Occupational Safety & Health Program (2018 -- 2022) states that in addition to safety and health measures at the workplace, ensuring safety through construction management of buildings and machine design is effective in preventing occupational accidents. Therefore, the "Support Project for Safety and Health Education for Engineers and Others Engaged in Design and Construction Management" will be implemented, and educational materials related to occupational safety and health in the two fields of machine design and construction work for university students will be developed in 2020, 2021 and 2022. This paper describes the background to the development of educational materials for the field of machine design and the composition of the materials. In addition, two items, safety reporting system and the process of risk assessment and safeguarding are shown.
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Kyoko HAMAJIMA
Session ID: 224
Published: 2024
Released on J-STAGE: May 25, 2025
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The importance of safety and health education for science and technology students who aspire to be engineers is widely recognized in the industrial world. However, that importance has not been adequately recognized at educational institutions such as universities whose mission is education and academic research, as well as contributing to society. Thus, to help realize safety education at universities and other institutions whose purpose is developing engineers, we have established a study group—to raise awareness of the need for such education, and investigate and examine desirable educational content, methods of supporting educators, and other topics—as a study group of the Industrial/Chemical Machinery and Safety Division of JSME. There is a methodology for realizing safety, and it is common knowledge in the industrial world that industrial machinery design and occupational accident prevention are based on that methodology. On the other hand, the need for safety education and its methodology are not adequately recognized at institutions like universities, and thus deficiencies are evident in education for developing engineers. This report discusses the need for education by presenting an example of a fatal fire accident which occurred during Tokyo Design Week due to an exhibit produced by university students. Then the report discusses challenges for introducing safety education at institutions like universities, which have the dual roles of education and research, and present topics for closer examination identified by the study group.
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Yuka KOREMURA
Session ID: 225
Published: 2024
Released on J-STAGE: May 25, 2025
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Support for children with developmental disabilities is called rehabilitation education. Unlike childcare and kindergarten education, support personnel who specialize in rehabilitation education are required to create individualized support plans for each child and provide appropriate "learning opportunities" that give the child many opportunities to acquire the behavioral skills necessary for social life while respecting the "uniqueness" of the child. Applied Behavior Analysis is a scientifically based approach to the study of behavior. Applied behavior analysis is a discipline that effectively promotes behavior change (learning) based on scientifically verified "principles of behavior. This presentation will discuss the technical aspects of treatment and education using applied behavior analysis, as well as the ethical issues involved.
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Shogo SATO, Yoshihiro TAKAHASHI
Session ID: 301
Published: 2024
Released on J-STAGE: May 25, 2025
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Earthquake countermeasures are necessary in Japan, because earthquakes frequently occur. Among the earthquake countermeasures, seismic isolator is attracting attention. Seismic isolator is the device to absorb earthquake vibrations between the ground and the structure. Currently, seismic isolation devices are becoming widespread. However, most of them are only effective against horizontal vibrations and do not adequately protect against vertical vibrations. In recent years, Tokyo inland earthquake which accompanied by violent vertical vibrations is predicted. Therefore, it is necessary to develop a vibration reduction device which can absorb vertical vibrations. A vibration reduction device with nonlinear behavior was developed in the past. According to experiment results, its device was able to reduce the maximum amplitude ratio to about 1.3. However, the resonance occurred in the low frequency range from 4 to 5Hz. In this study, the behavior of a vibration reduction device with nonlinear behavior on vertical vibrations was analyzed in order to reduce the resonance to below 1Hz while suppressing the amplitude ratio. In the analysis, two types of spring constants of the experimental device and the friction coefficient of the bearings attached to the experimental device were adjusted. The analysis results showed that if the friction coefficient of the bearings could be reduced, the resonance of the experimental device could be reduced.
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Rieko HOJO, Yuka KOREMUA, Shoken SHIMIZU
Session ID: 311
Published: 2024
Released on J-STAGE: May 25, 2025
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In recent years, interest in well-being has been growing around the world. The phenomena is partly due to the influence of the Sustainable Development Goals (SDGs). This trend is spreading not only to the general public but also to the industrial sector. In the present study, we are linking well-being measurement with safety, and conducting demonstration experiments mainly in the construction and manufacturing industries. The results of the experiments revealed that well-being can also be used to improve safety. In the future, we plan to conduct research with a view to developing a safety education system for workers at workplaces.
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Keisuke MINAGAWA
Session ID: 312
Published: 2024
Released on J-STAGE: May 25, 2025
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Piping is an important mechanical member in factories and power or chemical plants. The soundness of pipes must be regularly inspected to prevent accidents such as ruptures due to reduced wall thickness. However, in large-scale plants, the total length of pipes extends over several hundred kilometres, which requires significant costs for the inspection. In recent years, there has been a shortage of engineers and problems with the succession of technology, so labour-saving inspections are required for the sustainable maintenance of the industry. In this study, a method for evaluating the soundness of piping is developed. In this method, vibration waveforms measured by an accelerometer are analysed in frequency and their soundness is evaluated by machine learning. In this paper, the vibrations caused by water flow in pipes with/without failure were measured and the wavelet-transformed data were processed by AI to assess the soundness of the pipes. As a result, it was confirmed that the developed method using the machine learning can detect failures in pipes and the is effective as an health monitoring method for pipes.
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