Global ETD Search

21	Inspirationsplattform : kvinnor i teknik / Inspirational platform : women in technical fields Brun, Erica, Häggström, Ellionore January 2024 (has links) In hope of lessening the inequal division between the amount of women and men studying and working in technical fields a project to create an inspirational platform has been initiated by the organisation Pepp. By the end of the first stage of the project a webpage has been created with frontend programming. This webpage contains several imaginary person portraits of imaginary individuals studying or working in technical fields. JavaScript filter functions have been created in order to filter between these individuals. All the necessary data for the portraits are collected in a database in form of an array in JavaScript. User tests were conducted where seven separate subjects were allowed to test the finished person portrait webpage. In the future the website will be improved and expanded with several webpages. Portraits of real individuals will also be collected and replace the imaginary individuals on the webpage. kvinnor kvinna teknik webbutveckling frontend ingenjör ingenjörer jämställdhet sexism utbildning genus inspiration javascript webbdesign html ui ux css pepp Computer and Information Sciences Data- och informationsvetenskap
22	Utveckling av QuickMove : Ett hjälpmedel för uppresning och flyttning av brukare / Development of QuickMove : A raising and transfer aids of patients Pedersen, Zara, Birkehag, Malin January 2012 (has links) Designingenjörsstudenterna, Pedersen och Birkehag, på Högskolan i Skövde har i samarbete med hjälpmedelsföretaget Handicare AB arbetat med ett produktutvecklingsprojekt under våren 2012. Projektets syfte var att uppgradera företagets befintliga produkt QuickMove som är ett uppresning- och förflyttningshjälpmedel inom vården. Målet var att bibehålla QuickMoves funktioner och säkerhet samt skapa innovativa lösningar och minska transport- och tillverkningskostnader. Produktutvecklingsprocessen skedde iterativt och började med kundundersökningar i form av enkäter, intervjuer och fokusgrupper. Med hjälp av detta gjordes en kundkravsspecifikation som under hela projektet fanns nära till hands. Därefter påbörjades idégenereringen med hjälp av diverse kreativitetsmetoder. En fullskalig modell byggdes därefter i VP-rör och silvertejp. Utvärderingar och tester gjordes på modellen som därefter kunde vidareutvecklas och modelleras i programvaran SolidWorks. Hållfasthetsberäkningar, materialval, tillverkningsmetoder, formspråk, kostnader och ergonomi var områden som arbetades med och ett slutkoncept fastställdes. Resultatet bestod av ett uppgraderat hjälpmedel som fick namnet UpAway. Hjälpmedlets fraktvolym kommer att minska med 75 procent och produkten har färre antal delar jämfört med QuickMove. UpAways nya genomarbetade design och funktionella anpassningar kommer leda till fler nya användargrupper både inom Sverige och internationellt/globalt. Enligt studenternas bedömning har UpAway alla förutsättningar till en bredare marknad. / During the Spring of 2012 Pedersen and Birkehag, two product design engineering students at University of Skövde, carried out a product development project in cooperation with Handicare AB. The aim of the project was to upgrade QuickMove, the current standing-up and transfer aid used in health care and developed by Handicare. The goal of the project was to maintain the functions and safety features of QuickMove while creating new innovative solutions and lowering the transportation and manufacturing costs. The product development process was iterative and started with the research of customer requirements, which involved user studies and interviews. The customer requirements specification is based on customers’ needs and was used as guideline throughout the product development process. Ideas and concepts were generated with various creativity methods. A full scale model was built with VP-pipe and duct tape. Evaluations and tests were performed on the model and further developments were carried out. To analyze the result a visual model was built with the software SolidWorks. Strength of materials analyses, material selection, development, design, cost and ergonomics were all taken in consideration and a final concept was elaborated. The result was an upgraded aid named UpAway. This aid contains fewer parts than QuickMove and will reduce transportation volume by 75 percent. The newly developed design of UpAway, adapted to customers’ demands, will generate customers’ interest and according the students thus result in a broader market both in Sweden and worldwide. aid raising transfer health care rehab weak bone strenght patient integrated product development design engineering hjälpmedel vård brukare uppresning förflyttning rehabilitering svag benstyrka vårdtagare vårdgivare patientförflyttning patient designingenjör design integrerad produktutveckling ingenjör utveckling
23	Konstruktion av steghållare till brandbilar / Construction of ladder holder for fire engines Svanström, Joel, Muschke, Daniel January 2010 (has links) High demands are set on all equipment used in emergency service work, where small margins can be the distinguishing factor between life and death during a rescue operation. It is important that tools such as ladders quickly and easily can be dismounted from a vehicle and still satisfy the regulatory requirements for securing loads during transport. The existing solution for getting ladders down from the roof of a fire engine requires a large manual effort from the user in an ergonomically unsound posture. In this degree project a new ladder holder is developed with focus on the user to solve the ergonomic problems and at the same time create a more compact design that can be adapted to several different types of ladders. After an initial pre-study with user-interviews and measurement of forces and distances a set of requirements was formulated that came to govern the project's direction. Creative methods were used to generate concepts that improved the function and through design solutions, calculations and testing in CAD a base for manufacturing of a new product was created. The result is a completely new type of ladder holder that minimizes the user's manual effort and simplifies the securing of ladders in the holder. Measures have been taken to reduce material usage and manufacturing cost, while aiming for reliability and durability. Further development and construction of physical prototypes is needed before the new ladder holder can go into production. / Höga krav ställs på all utrustning som används vid räddningstjänstens arbete, då små marginaler kan vara skillnaden mellan liv och död under en utryckning vid olycka. Det är viktigt att verktyg såsom stegar snabbt och enkelt kan monteras av från ett fordon och samtidigt uppfyller lagkrav för säkring av last under färd. Den existerande lösningen för att få ned stegar från taket på en brandbil kräver en stor manuell kraftansträngning från användaren i en oergonomisk arbetsställning. I detta examensarbete utvecklas en ny steghållare med användaren i fokus för att lösa de ergonomiska problemen och samtidigt skapa en mer kompakt konstruktion som kan anpassas till flera olika typer av stegar. Efter en inledande förstudie med användarintervjuer och mätning av krafter och avstånd formulerades en kravspecifikation som kom att styra projektets inriktning. Kreativa metoder användes för att generera koncept som förbättrade funktionen och via konstruktionslösningar, beräkningar och tester i CAD skapades ett tillverkningsunderlag för en ny produkt. Resultatet är en helt ny typ av steghållare som minimerar användarens manuella kraft-ansträngning och förenklar låsningen av stegarna i hållaren. Åtgärder har tagits för att minska materialåtgång och tillverkningskostnad samtidigt som pålitlighet och hållfasthet har eftersträvats. Mer utveckling och konstruktion av fysiska prototyper är nödvändig innan den nya steghållaren kan gå i produktion. degree project product development user engineer construction fire engine rescue vehicle equipment ladder holder CAD FEM aluminium mechanical examensarbete produktutveckling användare ingenjör konstruktion brandbil räddning fordon utrustning stege hållare CAD FEM aluminium mekanisk TECHNOLOGY TEKNIKVETENSKAP
24	Konstruktion av steghållare till brandbilar / Construction of ladder holder for fire engines Svanström, Joel, Muschke, Daniel January 2010 (has links) <p>High demands are set on all equipment used in emergency service work, where small margins can be the distinguishing factor between life and death during a rescue operation. It is important that tools such as ladders quickly and easily can be dismounted from a vehicle and still satisfy the regulatory requirements for securing loads during transport. The existing solution for getting ladders down from the roof of a fire engine requires a large manual effort from the user in an ergonomically unsound posture.</p><p>In this degree project a new ladder holder is developed with focus on the user to solve the ergonomic problems and at the same time create a more compact design that can be adapted to several different types of ladders. After an initial pre-study with user-interviews and measurement of forces and distances a set of requirements was formulated that came to govern the project's direction. Creative methods were used to generate concepts that improved the function and through design solutions, calculations and testing in CAD a base for manufacturing of a new product was created.</p><p>The result is a completely new type of ladder holder that minimizes the user's manual effort and simplifies the securing of ladders in the holder. Measures have been taken to reduce material usage and manufacturing cost, while aiming for reliability and durability. Further development and construction of physical prototypes is needed before the new ladder holder can go into production.</p> / <p>Höga krav ställs på all utrustning som används vid räddningstjänstens arbete, då små marginaler kan vara skillnaden mellan liv och död under en utryckning vid olycka. Det är viktigt att verktyg såsom stegar snabbt och enkelt kan monteras av från ett fordon och samtidigt uppfyller lagkrav för säkring av last under färd. Den existerande lösningen för att få ned stegar från taket på en brandbil kräver en stor manuell kraftansträngning från användaren i en oergonomisk arbetsställning.</p><p>I detta examensarbete utvecklas en ny steghållare med användaren i fokus för att lösa de ergonomiska problemen och samtidigt skapa en mer kompakt konstruktion som kan anpassas till flera olika typer av stegar. Efter en inledande förstudie med användarintervjuer och mätning av krafter och avstånd formulerades en kravspecifikation som kom att styra projektets inriktning. Kreativa metoder användes för att generera koncept som förbättrade funktionen och via konstruktionslösningar, beräkningar och tester i CAD skapades ett tillverkningsunderlag för en ny produkt.</p><p>Resultatet är en helt ny typ av steghållare som minimerar användarens manuella kraft-ansträngning och förenklar låsningen av stegarna i hållaren. Åtgärder har tagits för att minska materialåtgång och tillverkningskostnad samtidigt som pålitlighet och hållfasthet har eftersträvats. Mer utveckling och konstruktion av fysiska prototyper är nödvändig innan den nya steghållaren kan gå i produktion.</p> degree project product development user engineer construction fire engine rescue vehicle equipment ladder holder CAD FEM aluminium mechanical examensarbete produktutveckling användare ingenjör konstruktion brandbil räddning fordon utrustning stege hållare CAD FEM aluminium mekanisk TECHNOLOGY TEKNIKVETENSKAP
25	Bridging the boundaries between D&T education and working life : A study of views on knowledge and skills in product development Isaksson Persson, Helena January 2015 (has links) In Sweden upper secondary school education is organised in programmes. One of these programmes is the Technology programme that covers five orientations, one of which is Design and Product Development. This thesis is based on the idea that a clearer link between upper secondary school and the demands of professional life in the area of product development is beneficial to both students and industry. Product development is performed in cross-functional teams were understanding of others competences is important. It is therefore argued that, in order to enhance both teaching and learning, interdisciplinary considerations need to be explored. In this thesis, we turn to engineers and industrial designers. The aim of the present study is to get professional actors’ views on knowledge and skills needed within the field of design and product development and to examine whether there are key areas that facilitate an interdisciplinary approach suitable to focus on for educational purpose. As artefacts play a central role in product development the informants’ views on different products/artefacts are also examined. This reasoning results in an a two-part overall research question (a) What thoughts do professional engineers and industrial designers express regarding necessary knowledge and skills, and (b) what relevance does this have for upper secondary school teaching of product development? This overall research question is examined through two sub- studies, both performed at the same time, one conducted as a semi- structured interview and the other using the repertory grid technique. Twelve engineers and industrial designers are interviewed. The first study examines the informants’ thoughts on knowledge and skills required in their work. The same informants’ interpretations and valuations of artefacts are examined in the second sub-study. In sub-study 1 two topics of significance to the informants are identified. These topics are: [1] To act within the team (Figure 4). The ability to navigate and position oneself within a team is, according to the interviewees, a necessary skill in design and product development work. Its character can be described as including specific vocational knowledge and skills as well as issues of general and interdisciplinary nature as collaborating, compromising, communicating, and leadership. The second topic [2], to CAD (Figure 4) includes both skills with CAD software and the ability to understand relationships between a CAD model on screen and the final product. The third topic [3] - a valuation of artefacts - is the outcome of sub- study 2 (Figure 4). This topic was found interesting and further analysed, resulting in the development of a comparison procedure. The result demonstrates how the interviewees interpret and discuss artefacts’ functionality linked to cultural values. These three topics are found to be relevant for technology education at upper secondary school level geared towards design and product development to explore. To act within the team can inspire the development of activities in which project and teamwork are in focus. The purpose of the CAD model in product development is to visualise a product that does not yet exist. To CAD highlights the complexity of this visualisation ability. In the educational context the students can train this ability by developing digital models into physical models or prototypes. Valuations of artefacts, the interviewees associate artefacts’ functionality with certain characteristics. In education students should learn that we are not neutral in our relations to products and other artefacts. In conclusion, a need for teachers to discuss artefacts from different perspectives such as sustainability, usability, identity and so on is also pointed out. / <p>QC 20150212</p> upper secondary school education design and product development technology programme repertory grid technique artefacts engineer industrial designer working life gymnasium produktutveckling design teknikprogrammet utbildning artefakter yrkesliv ingenjör industridesigner Learning Lärande Educational Sciences Utbildningsvetenskap
26	Utveckling av vippgunga för barn i åldrarna 1-3 år / Development of seesaw for children aged 1-3 years Andersson, Emilia January 2013 (has links) Under våren år 2013 har Emilia Andersson, en designingenjörsstudent på Högskolan i Skövde, utfört ett produktutvecklingsprojekt i samarbete med HAGS Aneby AB. Syftet med projektet var att utveckla en vippgunga vars storlek skulle vara anpassad för barn i åldrarna 1-3 år. Målet var att vippgungan ska kunna säljas över hela världen samt uppfylla den amerikanska standarden och europastandarden för lekredskap. Projektet inleddes med en förstudie och teori-fas, där bland annat litteraturstudie och konkurrentanalys genomfördes och annan information samlades in för att få djupare kunskaper inom ämnet. Därefter började idéer och koncept genereras, som sedan genomgick utvärderingar, så som användartester, vilket ledde till ett slutkoncept. Konceptet utvärderades med hjälp av bland annat hållfasthetsberäkningar och en antropometrisk analys. Den slutgiltiga vippgungan kan trots anpassningen för åldersgruppen, inte bara användas av 1-3-åringar utan också av äldre barn, tack vare att konstruktion och framförallt handtag ger extra lekvärden. / During the spring of 2013, Emilia Andersson, a student in product design engineering at University of Skövde, carried out a product development project in cooperation with HAGS Aneby AB. The aim of the project was to develop a seesaw adapted for children aged 1-3 years. The goal was to develop a seesaw that could be sold worldwide and meet the American standard and European standard for playground equipment. The project began with a pre study and a theory phase, which included literature review and competitor analysis and information were gathered to gain a deeper knowledge of the subject. Later on ideas and concepts were generated, which then through evaluations as user testing lead to a final concept. The concept was evaluated with for example strength calculations and an anthropometric analysis. The final seesaw can, despite adjustment for the age group, not only be use by 1-3-year-olds, but also by older children, this thanks to the design and the handles that provide extra play values. Seesaw spring rockers integrated product development design engineering risk in play anthropometry model prototype user testing product architecture children play playground equipment playground Vippgunga gungbräda designingenjör design integrerad produktutveckling ingenjör utveckling risktagande i lek antropometri funktionsmodell modell prototyp användartest produktarkitektur barn lek lekredskap lekplats
27	Utveckling av luftkompressormonterad ljuddämpare / Development of an air compressor mounted silencer Mustafa, Kobin, Rozumberski, Kristian January 2018 (has links) Ett ljudfenomen som uppstår i samband med luftkomprimeringen i den nya D7 motorn har uppmärksammats som ett problem av kunderna. Ljudfenomenet som resonerar i hytten bidrar till en obehaglig arbetsmiljö. Uppdraget har i sin tur varit att utveckla en luftkompressormonterad ljuddämpare mot en kravspecifikation som eliminerar detta fenomen. Med hjälp av diverse verktyg och en spiral produktutvecklingsprocess utfördes ett flertal iterationer av dem koncept som kan tänkas lösa problemet. Dessa iterationer konstruerades i mjukvaran CATIA V5 för att sedan beställas in som fysiska prototyper i materialet Pa12. För att bekräfta prototypernas funktionalitet utfördes simuleringar samt fysiska tester. Det resulterande arbetet blev ett konceptförslag till Scania CV AB som uppfyller kravspecifikationerna. Lösningens ljuddämpningsförmågan reducerade ljudfenomenet med 73% i genomsnitt. Med hjälp av observationer och analyser under de fysiska testgenomförandet uppmärksammades komplikationer som bör åtgärdas. Det mest kritiska med det nuvarande konceptet är dem vibrationer som uppstår. För att åtgärda detta problem kommer det krävas ytterligare infästningspunkter på motsvarande sida till de nuvarande. All mätdata i denna rapport är modifierat. Detta för att skydda känslig information. / A noise phenomenon that arises in connection with air compression in the new D7 engine has been noted as a problem by the customers. The sound phenomenon resonates in the cabin contributes to an unpleasant work environment. The mission, in turn, has been to develop an air compressor-mounted silencer against a requirement specification to eliminate this phenomenon. Using various tools and a spiral product development process, a number of iterations were made of those concepts that could solve the problem. These iterations were engineered in the CATIA V5 software, then ordered as physical prototypes in the material Pa12. To confirm the prototypes' functionality, simulations and physical tests were performed. The resulting work became a concept proposal for Scania CV AB that meets the requirements specifications. The solution managed to reduce the sound phenomenon by 73% on average. With the help of observations and analyzes during the physical test implementation, complications were noted that should be addressed. The most critical on the current concept is the vibration that occurs. To fix this problem additional attachment points will be required on the corresponding side to the current ones. All data in this report have been modified. This is to protect sensitive information. Product development muffler sound phenomenon air compressor truck Scania CV AB engine CATIA V5 analysis design installation concept spiral product development process ergonomics frequency hertz decibel development engineering engineer innovation and design Produktutveckling ljuddämpare ljudfenomen luftkompressor lastbil Scania CV AB motor CATIA V5 analysering konstruktion installationskoncept spiral produktutvecklingsprocess ergonomi frekvens hertz decibel utveckling ingenjör maskiningenjör innovation och design design Engineering and Technology Teknik och teknologier
28	The Leadership Perspective of Promoting Creativity and Innovation : A case study of an R&D organization Bolanowski, Daniel January 2008 (has links) <p>This paper focuses on leadership problems and possibilities regarding creativity in a specific R&D organization. This is done with the help of a model consisting of four domains of special interest for R&D leaders. A survey in the form of personal interviews was conducted with leaders and staff members of two R&D sections in the organization. The analysis pointed towards problems on work load and stress issues. Furthermore the organizational structure of the two sections provided a discussion on optimal structural build‐up in order to maximize creativity. Trust issues arose because of the apparent use of control by upper management as described by lower level leaders and the employees. Indications showed that the trust issues put up obstacles for learning and dealing with failure. On the other hand the relationships between section management and staff were perceived as good. Also the ground works of a good creative work was laid with the trusting relationships between fellow professionals within the group.</p> Leadership innovation relationship connection connectivity failure organization structure manager staff engineer domain creativity matrix project responsibilities reporting evaluation feedback rules corporate governance international fear, R&D research development trust work load pace productivity Ledarskap innovation kreativitet F&U forskning utveckling tillit förtroende arbetsbörda produktivitet relation kontakt misslyckande rädsla organisation struktur chef ledare personal. ingenjör domän matris projekt ansvar raportering utvärdering feedback regler företagsledning internationell Business studies Företagsekonomi
29	The Leadership Perspective of Promoting Creativity and Innovation : A case study of an R&D organization Bolanowski, Daniel January 2008 (has links) This paper focuses on leadership problems and possibilities regarding creativity in a specific R&D organization. This is done with the help of a model consisting of four domains of special interest for R&D leaders. A survey in the form of personal interviews was conducted with leaders and staff members of two R&D sections in the organization. The analysis pointed towards problems on work load and stress issues. Furthermore the organizational structure of the two sections provided a discussion on optimal structural build‐up in order to maximize creativity. Trust issues arose because of the apparent use of control by upper management as described by lower level leaders and the employees. Indications showed that the trust issues put up obstacles for learning and dealing with failure. On the other hand the relationships between section management and staff were perceived as good. Also the ground works of a good creative work was laid with the trusting relationships between fellow professionals within the group. Leadership innovation relationship connection connectivity failure organization structure manager staff engineer domain creativity matrix project responsibilities reporting evaluation feedback rules corporate governance international fear, R&D research development trust work load pace productivity Ledarskap innovation kreativitet F&U forskning utveckling tillit förtroende arbetsbörda produktivitet relation kontakt misslyckande rädsla organisation struktur chef ledare personal. ingenjör domän matris projekt ansvar raportering utvärdering feedback regler företagsledning internationell Business studies Företagsekonomi
30	Validating results from the Molten Salt Reactor Experiment by use of turbulent CFD simulations : A study of a modified U-tube shell-and-tube primary heat exchanger and radiator with molten salts Akner, Malcolm January 2021 (has links) Background Nuclear reactors utilizing molten fuels rather than solid fuels show a massive advantage in energy yield, waste handling and safety features. The only successful reactor utilizing a molten fuel was called the ‘Molten Salt Reactor Experiment’ (MSRE), built and operated in the Oak Ridge national laboratory (ORNL) in Tennessee, U.S.A. during the 1960s. The molten salts in question are fluoride compounds under the name of “FLiBe”. In this thesis, the heat exchangers of the MSRE are modelled and simulated, with the aim to test whether current computational fluid dynamics (CFD) software and mathematical models can accurately predict molten salt heat transfer behaviour. Methods All programs used are open-source and/or free-access to facilitate open collaboration between researchers in this growing field. All models and findings produced in this thesis are free to use for future research. The program Onshape was used to draw CAD-models based on hand-drawn technical documents released by ORNL. Several programs, e.g., Simscale and Salome, were used to create high detailed meshes of the heat exchangers. The CFD software Simscale and OpenFOAM have been used to simulate the heat exchangers, using the 𝑘 − 𝜔 𝑆𝑆𝑇 Reynolds averaged Navier-Stokes (RANS) turbulence model to perform a multiregion conjugate heat transfer (CHT) analysis. The program Paraview has been used for all post-processing on the large datasets. Results A working toolchain with open-source programs for CFD has been identified. Highly detailed, full-scale and accurate CAD-drawings of the two heat exchangers have been produced. Models have been finely meshed, containing tens of millions of cells, with good quality measures. The simulations produced physically sound and valuable data: Great heat transfer predictive capability with high accuracy to the data presented by ORNL. Pressure data showed a consistent over-prediction with a factor of ~2. Possibility of error within the MSRE measurement. Conclusions CHT using modern turbulence methods work well for the intended purpose and can be used by industry to simulate molten salt heat transfer. Open-source programs perform well and can be used by researchers to share ideas and progress. Doubts around certain measurements from the MSRE, showing large uncertainties. Future projects have been outlined to continue the work performed in this thesis. Molten salt reactors show fantastic promise as an energy generation method and should be seriously considered for the future of clean, reliable energy. CFD MSRE CAD CHT experiment molten liquid salt fluid mechanics mechanics fluid LTU nuclear reactor nuclear reactor generation four generation IV copenhagen atomics copenhagen atomics space engineering space engineering aerospace thesis master's thesis master's Malcolm Akner Erik CFD MSRE CAD CHT flytande salt strömningslära strömningsmekanik fluid fluidmekanik LTU kärnreaktor generation fyra generation IV copenhagen atomics rymdteknik flygteknik ingenjör civilingenjör examensarbete Malcolm Akner Erik Aerospace Engineering Rymd- och flygteknik

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