Special issue on environmentally conscious technologies in mechanical engineering

The article analyzes the main trends in the global market of mechanical engineering, in particular, in the branches of agricultural engineering, mechanical engineering for light industry, construction and road engineering, and energy engineering. It also addresses the structure and development trends of the mechanical engineering market by regions, changes in the business environment of the mechanical engineering industry, the impact of the Covid-19 pandemic on the state and development of the global mechanical engineering market, new rules and requirements for manufacturers of mechanical engineering products, and technological innovations and trends. Mechanical engineering companies today are at the epicenter of technological transformation. The mechanical engineering industry creates individual digital capabilities and intelligently combined products. Innovative processes such as related production, forecast service and innovative service models are increasingly used in mechanical engineering. The use of modern digital technologies in mechanical engineering is becoming a necessity that prevents the risks of losing relevance in the market of modern industry. Although the basic principles of mechanical engineering, such as thermodynamics, fluid mechanics and machine design, still remain in force, the latest technologies are contributing to the rapid development of composites, mechatronics and nanotechnology. These new subject areas, which are the result of modern achievements, have become a prerequisite for the development of new and promising industries, including artificial intelligence and biomechatronics. The growing demand for increased production efficiency while minimizing operating costs has led to demand for new and innovative technologies. Based on the study of the introduction of new technologies in mechanical engineering and global trends in the industry, the author substantiates the feasibility of accepting the need for globalization in mechanical engineering as a new norm, taking into account costs, tax consequences, quality and delivery in planning the existing geographical location, supply chains, strategic partnerships; reduction of the general supply cycle for better adaptation to the changing environment; optimization of existing production facilities, automation and attraction of advanced digital technologies for the establishment of work processes; implementation of advanced technologies in mechanical engineering, such as artificial intelligence, Internet of Things, nanoengineering, advanced data analytics, automation of robotic processes, blockchain, robotics, cloud computing augmented reality, 3D printing, drones, 5G, etc.; raising the qualification level of mechanical engineering workers.

A group of multidisciplinary Purdue students are working together to design, assemble, and install a Biowall in the Children’s section of the West Lafayette Public Library. A Biowall is a plant-based filter that improves Indoor Environmental Quality by cleaning indoor air and adding a natural aesthetic to the building space. Purdue has been developing Biowall technology since 2012, and this project involves redesigning it to fit into the available space at the library. The new Biowall design incorporates a watering mechanism that allows for children to get actively involved in maintaining the Biowall and learning about sustainability. This project also allowed university students to participate in the design process, manufacturing, and commissioning of the Biowall. Future add-ons to the design include a display to show current Indoor Environmental Quality, buttons to light different sections of the Biowall for an immersed learning experience. The project involved the participation of two student organizations, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and Boiler Green Initiative (BGI). The students from these organizations were able to learn about the designing and assembly process, while also learning how a Biowall works. The team involved in the project includes Ph.D., Masters, and Undergraduate students. The students involved came from Mechanical Engineering, Mechanical Engineering Technology, Environmental Engineering, and Construction Management Technology. The project involves working with a community partner, West Lafayette Public Library, and working with Purdue Facilities Service Building (PSFB) to assemble the equipment. An undergraduate class also benefitted from the Biowall by leaning the commissioning process by taking measurements of the different components in the Biowall. Once assembled and tested at the Environmental Chamber in the Applied Energy Lab located at the Knoy Building, the Biowall will be moved and installed in the West Lafayette Public Library. The location allows for the public to learn about the research done by Purdue, the Biowall will be a tool for everyone to learn about the importance of Indoor Environmental Quality, contaminants in the indoor air, and plants that improve Indoor Air Quality. A website which includes more information about the Biowall will also be active with the installation of the Biowall, the website provides for more outreach opportunities. Detailed documentation will be provided to the Library with Standard Operating Procedures.

The Mechanical Engineering Cooperation Agency (BKS-TM Indonesia) has established the International Symposium on Advances and Innovation in Mechanical Engineering (ISAIME) as an annual scientific forum for academics, researchers, and practitioners in mechanical engineering. The 6 th ISAIME was convened on 9 October 2025, organized by the Mechanical Engineering Study Program, Faculty of Engineering, Mechanical Engineering Department, Universitas Andalas, Padang, Indonesia, with the theme “Artificial Intelligence and Sustainability in Mechanical Engineering: Smart Solution for a Greener Future.” This symposium served as a platform to present and discuss recent advances, research findings, and innovations across a wide range of topics, including mechanical application design, energy conversion, manufacturing processes, materials engineering, and mechanical engineering education. Distinguished experts delivered a total of two keynote lectures from Universiti Teknologi Malaysia and the Université Laval, Canada, while 112 papers were presented and grouped into four thematic areas: mechanical application design, energy conversion, manufacturing processes, and materials engineering. These contributions reflect the growing role of mechanical engineering in advancing technological innovation, environmental sustainability, and human resource development within Industry 4.0. The Organizing Committee gratefully acknowledges the sponsorship and support of various companies and partner institutions, as well as the commitment of all speakers, authors, and participants who contributed to the success of this event. The knowledge and insights shared during the 6 th ISAIME are expected to foster academic collaboration, strengthen networks between academia and industry, and advance science and technology in mechanical engineering.

Engineering is a specially designed course that includes the application of knowledge explicitly in the field of science and natural phenomena. The fields of engineering, technology, and physical sciences have been growing towards a new era of development and innovation across the globe. They include many fields, and one such significant area is mechanical engineering, which deals with the construction, working principles, and applications of various types of machines. Technical data of the products based on their scientific principles, along with parameters, are involved in the development of mechanical engineering. With this background, this study is designed to look forward to the future directions and emerging technologies in mechanical engineering. This review study investigated the future direction and emerging technology in mechanical engineering. It also highlighted the purpose and significance of mechanical engineering and discussed some of the research questions in mechanical engineering. Future directions of learning and technology, mechanical invention and development, the transportation industry, electric vehicles, and the artificial intelligence industrial revolution are also mentioned in this study. Mechanical engineering is a growing field of technology across the world. This review study indicated that it is essential to have upgraded knowledge and skills in the field of engineering and technology in this modern era. Many theories can be applied in the mechanical field with the support of upgrades in technology. The direction of mechanical engineering study is to learn the mechanical aspects of different technologies and the knowledge about that technology to optimize its use.

The issues of additive technology in relation to combined methods of tool manufacturing using electromagnetic and other types of fields as an influence on the process are considered. It is shown that the use of additive technologies in mechanical engineering is most promising for flexible-structured industries, where the products are in a state of constant improvement and updating, and are produced in a limited series. In this case, it is required systematic replacement of the tool, which ensures the receipt of parts with the required configuration and quality level. 1. The paper proposes a new approach to the use of additive technologies in combined processing methods, where the concept of a traditional tool in the form of a solid body having a mirror image of the working part relative to the treated surface is expanded to non-contact and non-force contact effects, in which the removal of the allowance and the change in operational characteristics occurs due to thermal, chemical, magnetic influences or their combinations with mechanical factors. 2. The ways of solving the problem of managing operational characteristics by creating parts from conjugate layers, the properties of which are formed by optimizing technological modes, are proposed. 3. The field of effective use of the technology of sequential layer-by-layer build-up or changing the properties of layers during contact and contactless processing on serial equipment without time-consuming readjustment or modernization of technological equipment by designing a software product for modern computing equipment is disclosed. 4. The issues of additive technology in relation to combined methods of tool manufacturing using electromagnetic and other types of fields as an influence on the process are considered. It is shown that the use of additive technologies in mechanical engineering is most promising for flexible-structured industries, where the products are in a state of constant improvement and updating, and are produced in a limited series. In this case, it is required systematic replacement of the tool, which ensures the receipt of parts with the required configuration and quality level. 5. The paper proposes a new approach to the use of additive technologies in combined processing methods, where the concept of a traditional tool in the form of a solid body having a mirror image of the working part relative to the treated surface is expanded to non-contact and non-force contact effects, in which the removal of the allowance and the change in operational characteristics occurs due to thermal, chemical, magnetic influences or their combinations with mechanical factors. 6. The ways of solving the problem of managing operational characteristics by creating parts from conjugate layers, the properties of which are formed by optimizing technological modes, are proposed. 7. The field of effective use of the technology of sequential layer-by-layer build-up or changing the properties of layers during contact and contactless processing on serial equipment without time-consuming readjustment or modernization of technological equipment by designing a software product for modern computing equipment is disclosed.

Integrated Computer Technologies in Mechanical Engineering - 2024

The rapid growth of science and technology has had a significant impact on all sectors. As part of the reform and development of various social sectors, the traditional manual labor mode has been supplanted by modern machinery and automation technology. It reflects the progress in science and technology of China as well as the development of social civilization. This paper describes the existing problems in the application of mechanical engineering and automation technology and its future development. In short, the current mechanical engineering and automation technology still have issues to be solved in environmental protection, independent innovation, market research, and specialized talents and education. In China, mechanical engineering and automation technology should be heading in the direction of intelligence, automation, user-friendliness, scientific modernization, and integration.

This article explains the need for the research in the field of engineering terminology, the process of teaching it in foreign languages, the comparative application of engineering terms in different languages and studying the development trends. Objective of the article is to describe the methodology of teaching mechanical engineering terminology on the basis of study research in the field of mechanical engineering as a complex of heavy equipment in industry that produces household appliances, as well as consumer electronics and products of defense importance. Methods of the investigation that enabled to: study and analyze mechanical engineering terms; develop methodology of teaching mechanical engineering terms; analyze selection and assessment criteria of case studies; analyze selection and assessment criteria of project-based teaching; organize pedagogical experiments and analyze their results. It is an integral part to investigate the sphere of machine-building and metalworking industries, the production of metal products, metal structures and the repair of machinery and equipment. Furthermore, the issues of teaching engineering terminology in order to form professional foreign language competence in technical students by means of using new pedagogical technologies are of high significance. Such as, typology of terms in the field of mechanical engineering, teaching terminology whereby case studies and projects, examples of case studies and study projects are given. It is also important to pay attention to the etymology and the sources of the formation of terms, their peculiarities and definitions in special contexts as a complex human speech and language activity. Results and discussion. The article discloses the processes of activating terminology for obtaining information, through cognitive activity. Research works in the field of mechanical engineering, the practical basis of teaching terms and its effectiveness are also analyzed. The terms, vocabulary related to the field of mechanical engineering, case studies and analysis of independent work assignments are taken into account in the organization and conducting the trainings defined in the pedagogical experiment. As a result of experimental research, it was proved by mathematical statistical methods that the efficiency was achieved by 15% in case studies and 17% in educational projects. It was found that the mean value of the scores in the experimental group was 17% higher than in the control group. Hence, the research conducted has proven to be effective. Conclusions. The difficulties that arise in the process of comparing terminological activities show not only the specificity of individual languages, but also the specific role of terms in the national language system. Comparing the terminology of the English and Uzbek languages in the field of mechanical engineering not only allows to determine the general and specific features of the terms of mechanical engineering in the two languages, but also provides an in-depth study of both terminological systems.

Till date, fabrication of piezoelectric nanogenerator (PNG) with highly durable, high power density, and high energy conversion efficiency is of great concern. Here a flexible, sensitive, cost effective hybrid piezoelectric nanogenerator (HPNG) developed by integrating flexible steel woven fabric electrodes into poly(vinylidene fluoride) (PVDF)/aluminum oxides decorated reduced graphene oxide (AlO‐rGO) nanocomposite film is reported where AlO‐rGO acts as nucleating agent for electroactive β‐phase formation. The HPNG exhibits reliable energy harvesting performance with high output, fast charging capability, and high durability compared with previously reported PVDF based PNGs. This HPNG is capable for harvesting energy from a variety and easy accessible biomechanical and mechanical energy sources such as, body movements (e.g., hand folding, jogging, heel pressing, and foot striking, etc.) and machine vibration. The HPNG exhibits high output power density and energy conversion efficiency, facilitating direct light on different color of several commercial light‐emitting diodes instantly and powers up many portable electronic devices like wrist watch, calculator, speaker, and mobile liquid crystal display (LCD) screen through capacitor charging. More importantly, HPNG retains its performance after long compression cycles (≈158 400), demonstrating great promise as a piezoelectric energy harvester toward practical applications in harvesting biomechanical and mechanical energy for self‐powered systems.

The textbook provides information from the theory of basing and dimensional circuits; quality characteristics and indicators of manufacturability of products are considered, as well as the principles of group processing organization and features of technology design for numerically controlled machines. Complies with the federal state educational standards of higher education of the latest generation. It is intended for undergraduate students studying in the areas of training 15.03.01 "Mechanical Engineering", 15.03.05 "Design and technological support of machine-building industries", specialists in the specialty 15.05.01 "Design of technological machines and complexes", studying the disciplines "Fundamentals of mechanical engineering technology", "Mechanical engineering Technology", as well as to perform coursework and qualification work on mechanical engineering technology.

With the continuous growth of global demand for renewable energy, the utilization of rainwater resources has gradually become a focal point of research. Piezoelectric energy harvesting has received significant attention due to its simple structure, high energy conversion efficiency, and self-powering capability. However, conventional piezoelectric energy harvesters are constrained by the narrow resonant frequency bandwidth and the insufficiency of waterproofing capabilities, limiting the energy conversion adaptability to variable environmental excitations. To address this issue, this study aims to design broadband piezoelectric cantilever energy harvesters for rainwater energy harvesting. Theoretical analysis, numerical simulations, and experimental validations are employed to investigate the influence mechanisms of droplet impact parameters, waterproof encapsulation techniques, and MFC cantilever structures on the electrical output performance. It reveals that the droplet's Weber number exhibits a direct proportionality with the impact force, which is distributed within the 0-80 Hz frequency range. Simulations and experimental results demonstrate that the U-shaped piezoelectric energy harvester significantly outperforms other designs in terms of broadening the resonant frequency range and extending oscillation duration, achieving an oscillation time of 23.7 s, a charge transfer of 2.82 μC, and an output power density of 37.76 W/m<sup>2</sup> under a single impact. It demonstrates its efficient energy harvesting capability over a wide resonance frequency range. Additionally, the U-shaped design also improves its waterproof performance, further enhancing its applicability in rainwater environments. This study provides a novel, universally applicable approach for rainwater energy collection, expands the application scenarios of piezoelectric energy harvesting technology, and offers theoretical references and practical guidance for the design and application of broadband energy harvesters.

The Mechanical Engineering Technology (MET) program at Indiana University Purdue University Indianapolis (IUPUI) caters to a unique and diverse population of students. The students entering the program are divided between individuals fresh out of high school and preparing to pursue degrees full-time with an expectation of completion in four years and those who have already begun careers in industry and are seeking to improve their opportunities for advancement and whose expectation for graduation is further in the future. Thus, in catering to this diverse community of students, IUPUI's MET program has experimented with some innovative, and non-traditional, approaches to course design. One area where this innovation has proved noteworthy is in the design of the MET capstone course, where three different formats are employed in an effort to meet the needs of the student population. This paper discusses one of those options which stretches the boundaries of capstone pedagogy and tradition.

In the bending forming process, it is well known that the relation of the forces and the strains. But it is inexplicit about the dynamic process. This paper analysed the bending forming dynamic process of the pure T2 copper. A finite element mesh is printed on the top end surface of the specimen by a hairline greasy pen. The dynamic process was carried out on a bending machine, and shot by a digital camera. The photos of forming process were processed in order to make the analysis explicitly. Through contrasted the processed photos of the different times, the shape changing could be observed clearly. And the pure T2 copper would be bended more easier in the later period process.

The volume includes a set of selected papers extended and revised from the 2011 International Conference on Mechanical Engineering and Technology, held on London, UK, November 24-25, 2011. Mechanical engineering technology is the application of physical principles and current technological developments to the creation of useful machinery and operation design. Technologies such as solid models may be used as the basis for finite element analysis (FEA) and / or computational fluid dynamics (CFD) of the design. Through the application of computer-aided manufacturing (CAM), the models may also be used directly by software to create instructions for the manufacture of objects represented by the models, through computer numerically controlled (CNC) machining or other automated processes, without the need for intermediate drawings. This volume covers the subject areas of mechanical engineering and technology, and also covers interdisciplinary subject areas of computers, communications, control and automation. We hope that researchers, graduate students and other interested readers benefit scientifically from the book and also find it stimulating in the process.

Renewable energy harvesting schemes in wireless sensor networks: A Survey