AASS (Applied Autonomous Sensor Systems, Centrum för Tillämpade Autonoma Sensorsystem) arbetar med forskning inom autonoma system. Deras stora användningsområden är utveckling av automatiska system till fordonsindustrin samt system till äldrevården.AASS, har ett önskemål om en enklare modell av en CNC fräs för enklare fräsning till bland annat prototyptillverkning. Fokus ska ligga på kostnaden då precisionen inte är av största intresse.Uppdraget innebär att ta fram en konstruktion av en cnc- router med tre axlar med ett arbetsrum på 600x450x150mm. Maskinen ska kunna skära i mjuka material som trä, plaster men även mjukare aluminium.Resultatet är en tre axlig cnc- router som drivs av tre stycken stepmotorer som är kopplade till respektive kulskruv. Cnc routern har ett arbetsrum på cirka 600x450x150mm.

Kunskapsöverföring är en nödvändig förutsättning för att säkerställa organisationers existens och framåtskridande. Utgångspunkt för denna uppsats är förstudiens roll i mjukvaruprojekt och dess betydelse för den fortsatta systemutvecklingsprocessen. Fokus liggerpå kunskap som genereras under förstudien, samt hur och i vilken omfattning kunskapen förs vidare till analysfasen i systemutvecklingsprocessen. Resultatet visar att förstudien utgör ett viktigt beslutsunderlag och är en nödvändig förutsättning för att gå vidare i systemutvecklingsprocessen. Kunskapsöverföring genom dokumentation och via muntliga föredragningar är otillräcklig, eftersom det finns ett ?filter? som innebär att erfarenhetsbaserad kunskap inte överförs mellan förstudie och analys via dokument eller via muntliga föredragningar.

This thesis is about developing a design that provides improved vacuum seal between a lead coating and a plastic coating during plastic extrusion processes of cables. This report is a part of the course MSGC 17 for Bachelor Engineers in mechanical engineering.The work is performed at Nexans Norway AS in Halden where they have a production of high voltage cables for sea-, and offshore industry. A problem they face is that they do not get enough good seal at the attachment to the plastic extrusion machine. They want to achieve a vacuum between a lead coating on the cable and a plastic coating of the cable for plastic extrusion, which is something they do not achieve today. The thesis is thus to come up with a design that provides better sealing against the cable.The work involves a construction part with the phases of product development processes.

Den senaste FN-rapporten som utfo?rdes av IPCC sa?tter punkt pa? faktumet att katastrofala klimatfo?ra?ndringar kan undvikas utan ma?rkbar inverka pa? levnadsstandarden. Det go?r fo?rnybar energi till den billigaste och minst riskabla va?gen till en fossilfri framtid. Detta motiverar intresset fo?r att underso?ka lo?nsamheten i solcellsanla?ggningar fo?r elna?tinmatning.

Due to recent legal enactments regarding carbon dioxide emissions, the car industry is facing higher demands. An effective way of reducing these emissions is to minimize the weight of the vehicle. This thesis constitutes a Feasibility study on whether or not it is applicable for the car industry to utilize an inner floor structure comprising composite materials. The principal was the projectSåNätt, in which the main participant was Volvo Cars Corp. In consultation with a reference group, consisting of delegates from the industry and KTH, a specification of requirements was produced.

This report describes an bachelor thesis work which is performed in cooperation with SVIA that develops and sells automation solutions for the manufacturing industry. The thesis purpose was to evaluate the machine FeedLine to find opportunities for improvement in the product?s design that could lead to more standardization and thus improving the efficiency of manufacturing and assembly.Based on these basic issues suggestions for improvements were developed:How can the design of FeedLine be improved to facilitate the assembly?Can more standardization be imposed on FeedLine?s design to enable more stocking of standard components?An initial pre-study was conducted to evaluate FeedLine?s to find opportunities for improvement in its overall design. During the pre-study staff at SVIA and two of its clients was interviewed. Based on information gathered during the interviews and observations by the authors improvements was amendments.

Frölunda-Aspvik Säteri, a company just outside Stockholm within the agriculture and forestry sector, has developed a business idea around countryside tourism as a complement to their existing business. The idea is to offer a high quality and functional way of living in small cottages surrounded by beautiful nature and landscape of cultural importance. There will also be a range of additional activities available such as hunting, canoeing, cycling etc. The project should be done with minimum impact on the surrounding environment and the importance of the ecological system should be at the forefront of all business decisions. At present the company wants to have a better understanding of what the future trends are within tourism, how its business idea fits in with future trends within tourism and how to stay competitive.The purpose of this research paper is to identify the social driving forces that have an impact on people?s lifestyle and choice of holiday destination in the future, and present how these factors affect the travel industry.

In this thesis, the Train Power System Simulator (TPSS) has been compared and verified with the commercial simulator TracFeed® Simulation (TracFeed). The basis for the comparison was a given part of the Swedish railway system, with steel transportation trains. Primarily, emphasis was placed on running time and energy consumption in simulation results. Two transformer systems were analyzed, booster and auto transformers. The high voltage transmission line, parallel to the railroad track, was disconnected in some simulations.

Event is something that an increasing number of Swedish cities are investing in since it contributes to higher attractiveness of cities and generate economic revenues. New arenas are built around Sweden to meet the increasing demands to host such events. Event projects are carried out in Sweden and it is important that the planning phase is carried out thoroughly to get a successful project. This thesis aims to look more closely at selected organizations and how they plan their projects and whether it is possible to follow project plans in the event projects. Karlstad has many events that recur annually, including the Swedish Rally.

Event is something that an increasing number of Swedish cities are investing in since it contributes to higher attractiveness of cities and generate economic revenues. New arenas are built around Sweden to meet the increasing demands to host such events. Event projects are carried out in Sweden and it is important that the planning phase is carried out thoroughly to get a successful project. This thesis aims to look more closely at selected organizations and how they plan their projects and whether it is possible to follow project plans in the event projects. Karlstad has many events that recur annually, including the Swedish Rally.

 With the increases in fuel costs due to the depletion of the world oil reserves and the increase of greenhouse gasses as a consequence to using oil as a fuel many companies are looking to new and innovative ways to power their aircraft. One of these new ways to power an aircraft is using fuel cells powered using hydrogen and oxygen, thus producing nothing but water vapour and small amounts of nitrogen dioxide as well as trace amounts of other emissions. Both Boeing (1) and Politecnico di Torino (2) have shown that it is possible to build an all-electric aircraft powered by fuel cells. Both flights used small, two-seater aircraft and a constant between them was the loss of the co-pilot seat due to weight and lack of space. As this paper will deal with a commercial aircraft a primary concern is the cargo and passenger capacity and whatever impact switching propulsion system has on these.

Producing a building is a long and complex process. It consists of several parts, from the Feasibility study and design stage onto the construction and finally the management of the building. The design process is a critical part of the process where construction plans are made. The quality of the plans affect the production phase in great extent and faulty plans can pose a risk for extra costs for all parts in the process. The cost of producing dwellings has increased the last years and the detail design process is one of many phases where improvements can mean cost savings within the whole building process.This report aims to point at parts within the detail design process which could be more efficient, regarding communication, follow-up and time planning, and to give suggestions for improvements.

Stockholm is one of the fastest growing cities in the world. Its population is growing every day and the housing needs are becoming higher. Despite the growth and the need for more houses only a few new housing units are being built every year. Critics argue that if the building rate stays as it is today the development of the city will be very limited since there is no capacity for the city to embrace new incomers.The decision makers in the municipality of Stockholm are planning for large investments in housing units for the coming years up until 2030. There are plans of building approximately 140 000 new apartments to mend the ascending need for new houses.Farsta County is part of Stockholm and lies a few kilometers to the south of the city center.

Solid waste management is one of the most essential functions in a country to achieve asustainable development. In India, it has been one of the least prioritized functions during thelast decades. The most common ways to treat waste in India today are open dumping anduncontrolled burning. These methods are causing severe environmental pollution and healthproblems. India is one of the world?s largest emitter of methane gas from waste disposal.Since methane is a strong greenhouse gas, even small emissions have large impact on theclimate.

En stor del av Trafikverkets budget går till att reparera och underhålla våra broar. Underhållsåtgärder orsakar också trafikproblem med stora miljöutsläpp och samhällskonsekvenser som följd. Eftersom broar vanligtvis dimensioneras för en lång livslängd på 120 år är det viktigt att planera för långsiktiga lösningar och förutse konsekvenserna av kommande underhållsåtgärder. Genom att använda mer underhållsfria material finns möjligheten att minska kostnaderna och koldioxidsläppen.Målet med examensarbetet är att ta reda på hur stora besparingarna är genom att svara på frågan: ?Vilka fördelar erhålls av att använda mer underhållsfria material i broöverbyggnader ur kostnads- och miljösynpunkt??.