Abstract The thesis is about a job where the bartender chases seconds to respond to the customers demand. It’s a conservative industry where it is important to create a product that does not lead to major changes for the user.The aim of the project has been to develop a product which facilitates a bartender's work, both efficiency but also for reducing stress. With the help of different methods, dynamic product development and concept development, a new type of pourer has been developed. The pourer has been created with clear requirements to produce a user-friendly product.With the help of local bars, designers and prototype manufacturers DoubleUP was created. The thesis resulted in a double pourer, hence the name DoubleUP. The product is reminiscent of today's existing pourer consisting of one pipe, with the difference that several customers can now be served at the same time.

No description available.

Syftet med projektet var utveckla ett handtag för användning med tigersågsblad. Handtaget skulle möjliggöra för bladen att fällas samt låsas mekaniskt, utöver detta ställdes krav på en användarcentrerad lösning vars syfte är att främja säkerhet, intuition och komfort. Hållbarhet var även ett centralt delmoment i projektet. Projektet bygger på en iterativ process vars syfte är att kontinuerligt utveckla koncept. Dessa koncept är baserade på litteratur- och användarstudier för att skapa en grund för projektet, varav krav och önskemål från intressenter dokumenterades för senare verifiering. Koncept framställdes genom idégenerering och värdering med deltagare från företag samt användare. Ett vinnande koncept gick vidare för fortsatt utveckling, där metoder inom CAD och modellframtagning användes för att konstruera och testa beståndsdelar. Användaren har ständigt varit delaktig i projektet genom diverse tester, något som medfört goda insikter i handtagets utformning.  Finita Element Metoden (FEM) och hållfasthetsberäkningar har utförts vars syfte att begripa krafters påverkan på inre mekanismer. Handtaget har implementerat metoder inom en bred produktutvecklingsprocess, vars resultat reflekterar verkställdundersökning i sin design. / The purpose of the project was to develop a handle for use with reciprocating saw blades. The handle was intended to enable the blades to be folded and mechanically locked. In addition to this, requirements were set for a user-centered solution aimed at promoting safety, intuition, and comfort. Sustainability was also a key aspect of the project. The project is based on an iterative process aimed at continuously developing concepts. These concepts are based on literature- and user studies to establish a foundation for the project, with requirements and stakeholders' preferences documented for later verification. Concepts were generated and evaluated with participants from companies and users. A winning concept was selected for further development, using CAD and prototyping methods to design and test components. The user has been actively involved in the project through various tests, which has provided valuable insights into the design of the handle. Finite Element Method (FEM) and strength calculations have been performed to understand the impact of forces on internal mechanisms. The resulting handle has undergone methods within a comprehensive product development process, with its design reflecting the findings of conducted studies.

Small shops in small villages are facing the threat of extinction, leading to the loss of traditional craftsmanship and cultural heritage. Simultaneously, the rise of fast fashion has introduced a culture of disposable products, resulting in unsustainable environmental consequences. Addressing these issues, this thesis, conducted at the University of Skövde by Eva Moreno Castillo in collaboration with two artisan companies, Pablo Joyería Relojería and Olby Design AB, aims to repurpose jewellery packaging to promote awareness in society and mitigate the growing problem of waste. The initial phase of the research involved a preliminary study that explored the current market and existing solutions for jewellery packaging, as well as the needs and preferences of jewellers. Additionally, the study focused on understanding the processes involved in producing jewellery boxes and how sustainable and ethical practices could be implemented. Building on this foundation, methods were explored to engage users in the design process, an approach referred to as Collaborative Design. Throughout the research, creative methods inspired by design thinking were employed. Collaborative workshops, brainstorming sessions, various sketching forms, mockups, and a morphological matrix were utilised, involving users in designing and evaluating three proposed concepts. Close collaboration with Olby Design AB and Pablo Joyería Relojería facilitated the final concept selection through comprehensive assessment. The culmination of this thesis is the proposal of a concept that effectively addresses customer demands, product requirements, and sustainable processes. A life cycle analysis of the chosen concept will be conducted to validate these claims, providing further evidence of its environmental and social benefits. In conclusion, this thesis presents a viable solution to repurpose jewellery packaging and offers product and process enhancement recommendations. These findings contribute to the larger discourse on sustainable design and encourage further exploration and innovation in the field. / <p>Utbytesstudent</p>

In order to meet the demanding legislations on diesel engines exhaust emissions, an always more accurate control over the amount of fuel injected in the cylinders is required. A comprehensive understanding of the main factors involved in the injection process, therefore, should be achieved. Such factors are the pressure in the common rail, the injection ontime and the temperature at the injector. The rail pressure, in particular, has been the focus of this project: Its accurate acquisition is crucial for the correct determination of the injection duration and, consequently, for an improved control over the amount of fuel injected. The rail pressure, however, is characterized by significant instabilities affecting the measurement. An experimental campaign has been conducted on a Scania D13 engine in order to characterize and understand the rail pressure signature during engine steady operations: The superposition of injections, pump strokes and water-hammer instabilities forms a complex pattern extensively discussed. An attempt to model the pressure fast transients has been made: While the frequency content of the phenomenon investigated is correctly interpreted, the results obtained in the time domain diverge significantly in amplitude and phase from the experimental data collected. Finally, the measurement strategy adopted today at Scania CV AB to acquire the rail pressure has been investigated and its accuracy assessed. On the basis of the knowledge achieved, a new adaptive measurement technique, capable of changing the estimation process accordingly to the engine operating condition detected, is proposed. The potentiality of an increased accuracy in controlling the amount of fuel injected is proved for engine steady operations. Further investigation regarding the method tolerance to engine transients, however, is required.

No description available.

In today's society, fossil fuels are considered an outdated technology and the market for electric vehicles is flourishing. On the market, there is everything from electric scooters to electric cars when choosing a vehicle for your everyday commuting. Unfortunately, there are major drawbacks to many of the vehicles on the market today. Smaller electric vehicles have major shortcomings in terms of safety and weather protection. Larger vehicles can not be considered flexible and contribute to congestion and traffic jams.  EOS Scooter is an electric means of transport that has been created with a unique combination of flexibility, safety and weather protection. The EOS Scooter is a three-wheeled vehicle with a 1000 W hub motor at the front. The user sits comfortably and safely in the vehicle and steers the vehicle with handles on each side of the waist. To minimize the width of the vehicle but at the same time maintain safety in sharp turns, a tilt function is obtained which enables the vehicle to tilt 30 degrees.  In the project, both a prototype has been developed and a business model has been designed. The prototype has been developed with the help of feedback from customer surveys, calculations, simulations and tests that the project team has performed. The business model is based on customer surveys and various analyzes that have been carried out. The project has been based on sustainability with the environment in focus. / I dagens samhälle anses fossila bränslen vara en förlegad teknik och marknaden för elektriska fordon blomstrar. På marknaden finns det allt från elsparkcyklar till elbilar när man ska välja ett pendlingsfordon för sin vardagspendling. Dessvärre finns det övervägande nackdelar med många av fordonen som finns på marknaden idag. Mindre elektriska fordon har stora brister gällande säkerhet och väderskydd. Större fordon kan inte betraktas som smidiga och bidrar till trängsel och köbildning i trafiken. EOS Scooter är ett elektriskt transportmedel som har skapats med en unik kombination av smidighet, säkerhet och väderskydd. EOS Scooter är ett trehjuligt fordon med en 1000 W navmotor framtill. Användaren sitter bekvämt och säkert i fordonet och styr fordonet med handtag på var sida midjan. För att minimera bredden på fordonet men samtidigt bibehålla säkerheten i skarpa svängar så erhålls en tiltfunktion som medför att fordonet kan tilta 30 grader. I projektet har både en prototyp framtagits samt en affärsmodell utformats. Prototypen har tagits fram med hjälp av feedback från marknadsundersökningar, beräkningar, simuleringar och tester som projektgruppen har utfört. Affärsmodellen är baserad på marknadsundersökningar och flertalet analyser som har utförts under projektets gång. Projektet har haft ett genomgående hållbarhetstänk med fokus på reducerad klimatpåverkan. EOS Scooter har tagits fram för att effektivisera och förenkla pendling i städer med hållbarhet i fokus.

The main objective of this thesis is to show the potential that construction waste materials from Skanska’s projects have for upcycling. Materials are investigated through a comprehensive pre-study and their potential is showcased in developed concepts. Further, this thesis aims at suggesting implementation steps that facilitate circular material handling at Skanska. The conclusions are that waste at construction sites usually occurs from spillage, plethora and provisional installations, and materials suitable for upcycling are metal profiles for indoor and outdoor use, processed and unprocessed wooden planks, pallets, and plywood. Moreover, it is concluded that Skanska’s initial step towards increased circularity within material flows is to create a cross-functional project group to set up future goals and actions. Followingly, suggested areas for the project group to review further is education and knowledge creation, management of logistics and supply chain, external collaborations, and Skanska’s brand image from a sustainability perspective.  Skanska is one of the leading project management companies in Sweden, aiming at being climate neutral throughout the entire value system by 2045. This thesis is motivated with background in the amount of emissions caused by production of new materials for construction and building projects. From Skanska’s annual sustainability report it is discerned that over 50 % of CO2 emissions arise from material production. Further, there is great potential in exploring solutions others than recycling for construction waste materials to minimize the sector’s use of resources. How design can be used as a research method to investigate and explore the potential of different waste materials is yet unexplored, which motivates the importance of this work further. General methods such as a literature study, interviews, observations, analysis, and evaluation are used for gathering information and come up with results and conclusions regarding construction materials and sustainability work. Although, the foremost unique research approach in this thesis is Material Driven Design, and since upcycling of waste materials is investigated, Repurpose Driven Design is of great importance as well. The product concepts developed through these approaches are the primary results from this work since they contribute to fulfill the objective.

The world has seen a rapid increase in the development of electric vehicles. This development is made possible by competent engineers. Formula Student competitions offer engineering students the opportunity to not just get a head start in knowledge on how to develop electric vehicles but also get the opportunity to try out new concepts and technologies that may not yet be widely adopted. In a highly competitive environment, such as motorsports, the motivation to optimize and innovate is great. By reducing weight and inertia teams can greatly increase the performance of their vehicles. A lot of effort is made to optimize existing parts and concepts, but the best strategy for reducing mass and inertia is to eliminate the need for a part or a system all-together. By rethinking how the drivetrain of a Formula Student vehicle is packaged and interconnected, significant mass and inertia savings can be made. This is, however, often a difficult process that requires a lot of problem solving in many different engineering disciplines such as: electromechanics, electromagnetics, thermodynamics, mechanical design, material science and electronics. This thesis concludes that the most performant vehicle configuration is to utilize four-wheel drive as this allows for far better utilization of the available traction. Several ideas and concepts on how the packaging of drivetrain can be optimized are detailed and discussed. One concept calls for the design of a custom electrical machine, a rough estimation of which is done using analytical methods. These concepts are then compared to an existing drivetrain concept. It is concluded that the concept that is presented needs more work if it is to ever become a viable solution.

There are many different parameters of a ski running surface (material, roughness, hydrophobicity, etc.). All the parameters have an influence on ski glide, some more and some less. Furthermore, some parameters with only minor relevance are commonly declared as critical, while truly critical parameters, as far as we know, never been investigated. In this thesis, we try to identify and structure the different stages of ski running surface preparation. In our experiments, we have applied well- established, commonly used treatments parallel with alternative preparations. The unexpected result of our experiments is that the treatments commonly used today are not as good as alternative treatments, namely; stone grinding and glide wax application are far from an optimal ski treatment if minimising friction over a given distance is the major goal. / <p>Godkänd; 2006; 20060925 (cira)</p>