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1779 Uppsatser om Mechanical engineering - structural dynamics - Sida 8 av 119

Equine metabolic syndrome

Obese horses with insulin resistance are often also afflicted with laminitis. Horses with these symptoms are given the diagnosis equine metabolic syndrome (EMS). Signs of insulin resistance are excessive accumulation of adipose tissue on the neck, around the withers and on the dorsal area of the hindquarters. Insulin resistance means that the function of insulin is defective and does not stimulate glucose uptake by the cells in the body in the correct way. This will result in an increased insulin release.

Högmonterat avgassystem

Denna rapport behandlar vårt examensarbete som genomfördes i samarbete med Metso Dynapac. Uppdraget bestod av att ta fram ett högmonterat avgassystem för jordpackningsmaskinerna CA 252/302/402-Vibratory Roller. Dagens avgassystemsystem är bakåtmonterat och slutar under och bakom kylaren. Ett högmonterat avgassystem finns som tillbehör och fästes på det bakåtmonterade systemet. Problemet är att befintlig ljuddämparplacering försvårar kylluftens passage genom motorrummet,vilket får till följd att en onödigt stor fläkt krävs för att få tillräckligt luftflöde genom kylaren.

Utveckling och konstruktion av växellåda för elektroniskt styrda ställdon

The task of constructing a transmission has been provided to us by Digital Engineering, which is a company located in Hovmantorp. After meeting with Digital Engineering we started immediately with the brainstorming to find different ideas with pen and paper. After having presented a number of concepts for the company, we had finally chosen a winner. For the gearbox to be able to work in a good way the tension must never exceed the strain limit of the material. A prototype of the gearbox was produced by TKB Modell.

Kylkedjan för snittblommor - en kartläggning av distributionen

Title:Chillchain for cut flowers ? how the distribution works.Author:Anna-Maja Svarén, student at Lund Institute of Technology, mechanical engineering.Supervisors:Annika Olsson, Department of Design Sciences.Bengt Sahlberg, Bioett AB.Problem:How does the distribution of cut flower works regarding temperature, losses, responsibility, complaints, packaging and weak points?Purpose:The purpose is to map the distribution of cut flowers, with focus on losses in the temperature, from farm to store. The goal is to identify weak points in the chillchain and to se how wrong temperatures affect the flowers. The results can be a help to secure the chillchain.Method:The work started with a problem; map the distribution of cut flowers with focus on temperature losses. Data was collected on the basis of this problem, then analysed, and finally conclusions were drawn.Conclusions:The affect handling and distribution has on a cut flower is very complex.

Införsel av visuell styrning och taktad produktion : Skapa medvetenhet bland medarbetare

This master?s thesis was written on the behalf of Saba Frukt och Grönt AB inHelsingborg and is the final part of the Master program in MechanicalEngineering at Halmstad University.The main task was to introduce visual control and increase the rate of concept intwo of the departments of the company. The goal is to come up withimplementation proposals, and if possible to implement one in the near future.The author attacks the problem by using the Six Sigma DMAIC-methodology as itis a clear and structured approach. As a complement Lean-inspired tools are used.After compiling the results from the interviews and benchmarking somesuggestions are made. These are reviewed with stakeholders and a discussion ofhow to go on further was held.

Jämförelse mellan en träbro och en betongbro : En LCA-analys med fokus på koldioxidutsläpp samt en LCC-analys

This report is a thesis for collegeengineering program in structuralengineering at Uppsala University andwas commissioned by the Swedishcontractor Svevia. The study aims toprovide an overview of the mostbeneficial bridge material from bothenvironmental and economic point ofview.The life-cycle analysis covers onlycarbon dioxide emissions, since it isthe most spoken of in today?s climateagenda. Furthermore, this study aims tohighlight which parts, of the systemboundary, that contributes to greatercarbon emissions for the wood- and theconcrete bridge.The life-cycle cost analysis wascalculated with a lifespan of 40 yearsand covers the basic cost of investment,operating and maintenance, anddecommissioning costs.The analyzed constructions in this studyare existing projects that are almostcompleted. Both bridges were designed tohandle loads up to 60 tons.

Industrialisering av konsumentprodukt : Från inkommande material till färdigvarulager

This report examines the industrialization of a newly developed household machine on behalf of Technogarden Engineering Resources in Karlstad, Sweden. The report is a part of the final course in the Bachelor Program in Mechanical Engineering at Karlstad University and takes place in spring 2014.An innovator, an investor and a engineering consultant firm have through collaboration developed a new type of gruel machine. The product is in its final stage of construction and is planned to be manufactured in a production located in Sweden, autumn of 2014.To compete against today?s trend in outsourcing manufacturing to low cost countries for better profitability, the industrialization of the gruel machine must be done with a minimum amount of resources in order to become successful, which also describes the problem of this study. Using pre-study material in form of Lean production literature, visiting a successful production site and gathering data from involved engineers a specification was developed which describes what this industrialization must achieve and which requests can be accomplished.

"I en optimal värld skulle det inte se ut som det gör idag" : En kvalitativ fallstudie om vad som ha?nder na?r kravdokumentation inte tas pa? allvar

Requirements engineering is a widespread topic in the research field of informatics. However, there is little research regarding lack of requirements documentation and how it is perceived. The same applies for how requirements engineering in retrospect can be implemented. This is a debated issue on blogs and forums but it has not been reflected in the research area.Therefore, this study concerns research questions regarding how the developers, testers and requirements analyst experience the lack of requirements documentation and how requirements engineering in retrospect can be implemented.To answer these questions, data collection has been conducted through qualitative interviews with individuals affected by this problem in their everyday work.This study has provided an explanation of how the problem is perceived and what the consequences are, both direct and indirect. The impacts are divided into three categories and are presented as, emotional consequences, system implications and consequences regarding re source consumption.

Simulering av kabelbränder i sekundära säkerhetssystem med CFD-koden SMAFS

This report contains CFD-simulations of cable tray fires in nuclear power plant applications with the CFD-code SMAFS. Furthermore the report evaluates the use of CFD-codes within this kind of problems. The assessment of this report is that there is a tendency towards the good use of CFD-codes but before using it solely more research has to be done on the subject..

Arbete för alla? : En intervjustudie om hur tre professioner inom introduktionsprogrammet i Falköpings kommun ser på strukturella hinder och möjligheter för invandrares tillträde till den svenska arbetsmarknaden

Örebro UniversityThe Department Behavioural, Social, and Legal SciencesEducation of social workC-essay 41-60 pAbstractTitle: Work for everyone? An interview study of how three professions within the introduction programme in the local-government in Falköping looks at structural obstacles and discrimination in immigrants? access to the Swedish labour market.Authors: Emma Gustavsson and Sandra TjärnbergTutor: Rúna Baianstovu Deniz and Urban KarlssonToday many immigrants stand outside the labour market. To get established on the labour market and to get self-sufficient are important factors to a rapid integration process. The main purpose of this study is to investigate how three professions within the integration work in the local-government of Falköping looks at structural obstacles and possibilities with immigrants? access to the Swedish labour market.

Miljöstudier med CFD

Denna rapport behandlar stoftproblematiken i stränggjutningshallen på SSAB Tunnplåt AB i Luleå. Besvärande stoftkoncentrationer i luften har länge varit ett problem för personalen. Syftet med detta examensarbete var att beskriva den nuvarande situationen samt att kartlägga luftflöden med hjälp av CFD (Computational Fluid Dynamics). Även experimentella metoder ingick som en del i arbetet. I ett inledande skede intervjuades personalen för att författarna skulle få ta del av deras förslag och erfarenheter.

Bakhjulsupphängning, fyrhjuling

Highland Group AB was helping a customer of theirs to create an All-Terrain Vehicle (ATV), a project Highland has never been involved with before. For the wishbone arms of the wheel suspension, traditional manufacturing methods and tubes with cylindrical or square shaped cross section was preferred. We performed a simulation where the ATV was driving on a bumpy road too see the forces involved. With the results we proceeded to calculate the strength of the concepts to find out which is best suited for the tough environment in which the ATV is used. The concept that turned out to be the best was a wishbone made of circular cross section, which had good structural strength and did fulfill the demands that we required for the construction.

Utveckling av Prisjakts butiksomdömessystem

This thesis work is the result of the company Prisjakt?s wish to develop and improve its current system of opinions for online stores. The challenge was to develop a similar system that competitors are using but better. The collection of information is based on purchases and are collected from Web-shops. The purchases can then be monitored in a control panel.

Tidsåtgång i system med självgående/självlastande fullfoderblandare :

In this study I have compared two systems of handling TMR, self-propelled/ self loading mixers and conventional towed mixers, what has been investigated is the time for filling, mixing and feeding TMR as well as maintenance and fuel consumption. The background of this study is the structural rationalization within the Swedish milk production that has put focus on efficiency and reducing of costs. Forage and labour are the two biggest costs in milk production today. The study has been performed by visiting three farms and with a stopwatch measured the times for filling, mixing and feeding TMR. At the time for the visits, the users have been interviewed regarding maintenance and fuel consumption. They have also had an opportunity to give comments of how they experience the mixers. The result of the study after processing is that the average stock in the study can save 74000 SEK a year by reducing time for filling, mixing and feeding TMR to cows with a self propelled/ self loading mixer . The conclusion I can make of this study is that it?s not the size of the stock that decides whether it?s interesting to invest in a self propelled/ self loading mixer, but the presumptions on the farms, for instance forage logistics and mechanical equipment..

Arbete för alla? : En intervjustudie om hur tre professioner inom introduktionsprogrammet i Falköpings kommun ser på strukturella hinder och möjligheter för invandrares tillträde till den svenska arbetsmarknaden

Örebro UniversityThe Department Behavioural, Social, and Legal SciencesEducation of social workC-essay 41-60 pAbstractTitle: Work for everyone? An interview study of how three professions within the introduction programme in the local-government in Falköping looks at structural obstacles and discrimination in immigrants? access to the Swedish labour market.Authors: Emma Gustavsson and Sandra TjärnbergTutor: Rúna Baianstovu Deniz and Urban KarlssonToday many immigrants stand outside the labour market. To get established on the labour market and to get self-sufficient are important factors to a rapid integration process. The main purpose of this study is to investigate how three professions within the integration work in the local-government of Falköping looks at structural obstacles and possibilities with immigrants? access to the Swedish labour market.

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