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    The First and the Last - A bachelor’s thesis that explores how a Lynk & Co micromobility vehicle could be designed for 2030
    (2024) Christensson, Britta; Hassan, Sana; Sahlqvist, Oscar; Sjöberg, Deborah; Tengström, Malin; Chalmers tekniska högskola / Institutionen för industri- och materialvetenskap; Chalmers University of Technology / Department of Industrial and Materials Science; Bligård, Lars-Ola; Heinerud, Johan
    This thesis presents the development of a micromobility concept for the year 2030. The purpose of the project was to develop an inspiring and immersive concept. The project was given by Lynk & Co Design, who oversee the designing of cars for Lynk & Co. The micromobility market is growing and is expected to continue to expand. Another trend is that European cities are suggesting different ways to limit the usage of cars in cities. One way of doing so is to limit the possibilities of parking cars in city centers and, or, implementing green zones where car traffic is limited. The micromobility concept was aimed to have a strong link to Lynk & Co members and enable transport where a car might not be a fit solution in the year 2030. The outcome was an electric scooter which is foldable and can be charged in the trunk of a Lynk & Co car. It enables convenience to the members who, for example, need to park far away from their office or who want to explore a city in a convenient way. It is the perfect choice to travel the first and last mile. The final concept has technical parts and functions which could be possible to manufacture if developed and specified further. The finished concept was developed to inspire further development.
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    En undersökning av flexibilitet i öppna kontorslandskap - En kvalitativ studie och produktutvecklingsprocess gällande behov för flexibilitet
    (2024) Andersson, Klara; Barbiche, Rayan; Carrin, Mathilda; Fermskog , Sebastian; Florin , Ida; Johannesson, Maja; Chalmers tekniska högskola / Institutionen för industri- och materialvetenskap; Chalmers University of Technology / Department of Industrial and Materials Science; Bligård, Lars-Ola; Rexfelt, Oskar
    At the request of AJ Produkter, this project has identified and analysed the need for flexibility in open office landscapes through systematic data collection. Subsequently, a final concept has been developed during a product development process. Through user and literature studies, the project has laid the groundwork for mapping the challenges associated with modern work environments. The collected data was analysed, enabling the identification of problem areas and needs. These areas were used as a basis for idea generation and a requirement specification for a solution was established. Several concepts were developed, and through evaluation matrices and feedback from the respondents of the user study, a final concept was selected. The final product, named ALFRED, offers a portable workstation that meets the needs for flexibility and user comfort. The product contributes to making the user more flexible by not being tied to a specific location. It is an uncomplicated product that facilitates the movement of equipment, thus simplifying the user’s workday. The final concept has been visualised through models and sketches and has been assigned materials and dimensions. There are still several opportunities for further development before the concept can be realised. For example, strength calculations and a life cycle analysis need to be conducted to ensure that the product maintains high quality and meets sustainability goals.
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    Utveckling av 3D-printad funktionsmodell av flygmotor
    (2024) Brink, Lina; Christensson, Felix; Hemå, Petter; Karlsson, Fabian; Lundkvist, Vera; Wäpling, Alfred; Chalmers tekniska högskola / Institutionen för industri- och materialvetenskap; Chalmers University of Technology / Department of Industrial and Materials Science; Isaksson, Ola; Martinsson Bonde, Julian
    In today’s society the environment has gained much attention, causing more and stricter regulations to be set regularly regarding aircrafts and their fuels. Emissions need to be minimized while transports need to get longer and faster. That is why this area is under continuous development, requiring updated information and educational tools that can aid visualizing modern and future concepts. Physical models are required to visualise the developments made, which has therefore been one of the main goals of this project to produce. A literary study has been made to collect information regarding common commersial aircrafts and fuels, as well as the most popular concepts for the near future. These concepts have then been compared and their advantages and disadvantages explored. A physical model has been created based on the information to show differences and similarities, as well as the function of different configurations of turbofan engines. This model specifically show differences regarding bypass and gears, among other things
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    Möjlighetsstudie av en sond stor som en burk
    (2024) Christoforidis Johansson, Kevin; Dalevi, Alice; Gustavsson, William; Niens, Patrik; Chalmers tekniska högskola / Institutionen för industri- och materialvetenskap; Chalmers University of Technology / Department of Industrial and Materials Science; Bergsjö, Dag Henrik; Bergsjö, Dag Henrik; Xisto, Carlos
    This project was based on the American competition CanSat, where every team was tasked with creating a can-sized satellite to launch with a rocket. The task in this specific case was to study the feasibility of developing a satellite based on the dimensions of an American 355ml can, without the actual rocket launch. Using ”trial and error” as the primary approach for mechanical design was established early on and complemented by the integration of Arduino for electrical systems and sensors. Basic theories in fluid mechanics and mechatronics were also utilized. Every subsystem was tested individually, to ensure they worked as intended. The final prototype did reach a mostly satisfactory result with some subsystems not fulfilling the requirements set prior to the tests. Other subsystems were left out, due to time constraints. Overall, the project showed that it is feasible to create a can-sized satellite. However, more time and resources would be needed to reach a product that complies entirely with the requirement list and can partake in the actual competition.
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    Possibilities of minimising cobalt usage in the electric passenger car industry
    (2024) Busck, Jakob; Kryger, Marcin; Näs , Daniel; Rosén, Filip; Steen, Karl; Wallin , Erik; Chalmers tekniska högskola / Institutionen för industri- och materialvetenskap; Chalmers University of Technology / Department of Industrial and Materials Science; Klement, Uta; Sun, Jinhua
    Lithium-ion batteries are an essential and important part of the future, and play a crucial role in fulfilling the Paris agreement and the building of a sustainable future. Battery electric cars are pointed out as a key solution to electrify the transport industry and the majority of electric cars today are equipped with NMC batteries. Due to shortage and the complex supply chains, high price and the poor working conditions associated with cobalt mining, the industry works to phase out cobalt and replace cobalt-rich NMC batteries with different cathode chemistries containing less cobalt. By using literature studies and manufacturing coin cells with different cathode chemistries, this report aims to investigate whether alternative cathodes can be used today or within the near future. The investigated cathodes were examined in terms of cost, performance, safety, environmental- and social sustainability. Moreover, interviews with two representatives from the industry were conducted to discuss industry information and deepen the general comprehension of large scale battery production. The conclusion that could be drawn was that there are several possible alternative cathode chemistries without cobalt. However, all examined cathode chemistries have advantages and limitations that make different cell chemistries better suited depending on the usage.Lithium-ion batteries are an essential and important part of the future, and play a crucial role in fulfilling the Paris agreement and the building of a sustainable future. Battery electric cars are pointed out as a key solution to electrify the transport industry and the majority of electric cars today are equipped with NMC batteries. Due to shortage and the complex supply chains, high price and the poor working conditions associated with cobalt mining, the industry works to phase out cobalt and replace cobalt-rich NMC batteries with different cathode chemistries containing less cobalt. By using literature studies and manufacturing coin cells with different cathode chemistries, this report aims to investigate whether alternative cathodes can be used today or within the near future. The investigated cathodes were examined in terms of cost, performance, safety, environmental- and social sustainability. Moreover, interviews with two representatives from the industry were conducted to discuss industry information and deepen the general comprehension of large scale battery production. The conclusion that could be drawn was that there are several possible alternative cathode chemistries without cobalt. However, all examined cathode chemistries have advantages and limitations that make different cell chemistries better suited depending on the usage.