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591 Uppsatser om One dimensional hydraulic simulation - Sida 13 av 40
Riktlinjer för effektivisering av arbetet med Simuleringsdriven Konstruktion
Då många företag vill skaffa sig marknadsandelar genom att leverera rätt produkt, vid rätt tid och för rätt kostnad har de börjat arbeta med Simuleringsdriven Konstruktion. Simuleringsdriven Konstruktion hjälper dem att genom ett iterativt arbetssätt hitta optimal konstruktion tidigt i NPD-processen och därigenom reducera tid och kostnad för produktutvecklingen.Många företag som sysslar med forskning och utveckling kräver idag mer av provutrustning än tidigare för att kunna kontrollera och möta ökande krav på produkter. Mer sofistikerad provutrustning behöver utvecklas för att möta ökade krav på produktprov. Krav så som säkerhet, kapacitet, tidseffektivitet, noggrannhet etc. Att även tid och kostnad för utveckling av provutrustning reduceras är viktigt.Detta examensarbete har syftat till att ta fram riktlinjer för effektivisering av arbetet med Simuleringsdriven Konstruktion i utvecklingsprocesser.
Terminallokalisering med tyngdpunktsberäkning och kostnadsanalys
The Kedertruss is the loadbearing part in the Keder weatherprotectionsystem and it has been analyzed concerning its loadbearing capacity. The Kedertruss is produced and manufactured by Wilhelm Layher GmbH & Co. KG and this report has been made for their Swedish division Layher AB. The Kedertruss, designed in Germany according to German designcode, has been recalculated concerning Swedish conditions according to Eurocodes and a ongoing European standardization project. The two-dimensional program Winstatik Frame Analysis has been used for evaluation of load effects. Capacity has been calculated by hand-calculations and it has been verified that the Kedertruss in its larger spans isn?t able to withstand the loads.
VISUALISERING AV KATALOGHUS -med ADT och VIZ Render
The aim of this final thesis is to make it easier for the customer of a new designed house to get a picture of what the house will look like inside before it has been built.A method, which can be applied by any construction company who likes to visualize there buildings, has been designed and tested. One works after a regular design planning which is transformed into a three dimensional model of the house. In a rendering program, materials and surfaces are chosen for the model and then a picture of the finished product is made. The programs used for this work are ADT 2006 and VIZ Render.To evaluate the use of this method I?ve chosen to cooperate with LB-Hus which is a housing company that is specialized in building detached houses.
Utredning om andra tillämpningar än byggstommar för profilpressade träkompositer av OSB-material.
Newbeam Sweden AB är ett ganska ungt företag som genom deras patent har börjat kunna pressa unika träkompositer i 3 dimensioner. Företaget ligger i startgroparna med sin första tillverkningslina som skall öppnas i Söderhamn, Hälsingland.De själva har satsat mycket mot byggnadsindustrin. Min uppgift i detta arbete har varit att undersöka andra marknader med deras profi lpressade träkompositer som grund. Inriktningen blev butiksinredningar som ett resultat av researcharbetet som gjordes.Intervjuer och undersökningar gav en bild av hur viktigt det är med användarvänlighet samt enkelhet och de två orden blev mitt motto arbetet igenom.Resultatet av detta kom att bli lite mer än bara butiksinredningar..
Frisörer och frisörlärares syn på gesällbrevsmomentens användbarhet
I have been inspired by the Do It Yourself movement. DIY builds on the creativity of the individual, one?s capacity for initiative and one?s desire to realise one?s ideas. I have been inspired by sheets of pattern paper used in the manufacture of clothing, and my line of furniture is based on two-dimensional patterns of furniture. The sections of the pieces of furniture are printed on and relate to a standard sheet of plywood.
Produktionsflödesanalys - CA-Verken i Sävsjö
Examensarbete utfördes på CA-Verken i Sävsjö som bl.a. tillverkar hydraulcylindrar. De senaste två år har CA-Verken haft en kraftig ökning av omsättningen och det som står i vägen för fortsatt expansion är produktionen som har begränsad kapacitet.Målet med detta arbete är att studera CA-Verkens produktionsflöde för att kunna identifiera flaskhalsen/flaskhalsarna och därefter ge förslag på lösningar och förbättringar. Den teorin som har använts som grund till arbetet är Theory of Constraints (TOC). Intervjuer, företagets affärssystem och observationer har använts vid datainsamling.
Elektromekanisk växel för tunga lyft : Konceptutveckling
The basis of the study lies with a newly patented gearbox by cardiologist and inventor Stig Lundbäck. Stig founded CorPower Ocean AB to further develop the gearbox to be used in a wave energy device. The purpose of this project is to develop a concept of a lifting system with CorPower Oceans gearbox that is more energy efficient than a hydraulic lifting system. The goal is to use technology from CorPower Oceans gearbox inversely to perform heavy lifting as an alternative to hydraulics. The project is limited to applying the gearbox and gear rack on a forklift with a lifting capacity of ten tons.The main tool in this project will be the product development process Systems Engineering where only the most relevant parts will be used to develop a concept.
Analys av energianvändningen i kvarteren Carolina och Jenny : en fallstudie
An energy study has been performed on two blocks in an area called Gävle Strand. The buildings are owned by a tenant-owner?s association called brf Carolina and were built by the company Skanska 2008. The builder as well as brf Carolina are pussled by the fact that electricity use is higher than expected while heating is less. Skanska is also very interested in finding out how much heat recovery from stale exhaust air through a geo-thermal heat pump is contributing to the general heating requirement and energy balance in four out of the ten buildings located on the properties.To find possible answers to the higher electricity use a literature survey on user behaviour was conducted.
Integration av PLM och CAD i komplex produktutveckling : En utredning av Scanias framtida systemmiljö för produktdatahantering
In today's producing companies, there is a high demand on early integrated productdevelopment. One way to facilitate communication between departments and collaborationbetween people and thereby enable early sharing of product information within the companyis to use PLM, Product Lifecycle Management.The CAD environment at Scania is at the moment being upgraded from Catia v4 to Catiav5. In this stage it is important that also the interacting computer systems in Scania?s PLMenvironment are adjusted and in the future join the development. Scania has an idea of howthese systems will be developed as the transition from Catia v4 to Catia v5 is being carriedout.
Föroreningsspridning via ledningsgravar : en fältstudie på Köpmanholmens industriområde
Sewer trenches usually contain material with a higher hydraulic conductivity then the adjacent soil. Thus they can serve as paths of preferential flow in a polluted area. Wastewater from factories can also leak from wastewater pipes and pollute the soil in the sewer trenches.The purpose of this project was to investigate pollutions in sewer trenches and in sewer pipes in the industrial area of Köpmanholmen, 20 km south of Örnsköldsvik in the north of Sweden. To make an estimation concerning the potential of transport of pollutions in sewer trenches, hydrological calculations were performed.Leakage to any greater extent did not seem to be a problem in the area. This is the case both for the concrete and the wooden pipes that have served as factory wastewater pipes.
Estetiska omdömens paradoxala natur : En jämförelse av Hume och Kant
This work is meant to contribute to the research of adaptation studies by focusing on a special case: the transformation of a fictional diary into a movie. In order to sustain the form of the literary source the adaptation to movie requires certain strategies. Först of all, the diary genre is characterized by a one-dimensional narration. Second, diaries only supply a few written dialogues, hence this "void" has to be compensated and filled by media specific measures. Third, the investigated diary is a story of individualization and emancipation of a single woman.
Tillämpning av en markprofilmodell för hydrologiska beräkningar i avrinningsområdesskala
There is a great need to reduce nutrient leaching from arable land into lakes and oceans. By using several different types of models it has previously been possible to describe nutrient losses in a catchment area with a minimum unit of sub-catchment level. At present, it is instead desirable to model a smaller catchment with an opportunity to re-connect the results to the corresponding fields in the catchment. Such models already exist but they are not fully able to properly describe Swedish conditions and land characteristics in our region.With the approach of creating such a model, SLU has developed a project with this work as its first stage. The model is expected to be created under the working name SWE-model which stands for Soil Water Environment and is in this first stage supposed to apply the SOIL model in catchment scale. During the procedure to describe the first step in the process of developing such a model adapted to Swedish conditions and which works in the catchment scale with an area of about 10-30 km2, focus has been set on calculating the transport of water flow from different hydrological response units. Regardless of the processes occurring in the soil after the water has been added, it is assumed that all the water which flows from each simulated unit is drained.In the first step the hydrologic response units were identified based on land use and soil type in the study area. With the help of a script with functions that retrieve and transform data, certain units were chosen for simulation. The script was also created in this project. Finally, the model results were aggregated and summarized for each unique unit, for each sub-catchment, and also for the whole catchment.From the results it is possible to see similarities in the flow dynamics between modeled and measured data. The efficiency coefficient has been calculated to correspond to the mean of the measured values for the whole simulation period. With an automated calibration process the model should be able to perform better. The volume error gives an indication of overestimation from the model..
Förslag till ombyggnation av klipp- och bockningsmaskin
This thesis work has been performed on request by SWT (Scandinavia WeldTech AB). SWT manufactures, develop and sell ready to assemble building systems for concrete rafter beam applications. The beams in this system consist of a u-beam that is welded to a flange. To be able to fill the beams with concrete there is holes in the beams top end. The holes are made in a ?punching machine?. These holes are cut out and the remaining steel piece is bent down in the u-beam.
Värmeöverföring i bergvärmesystem : En numerisk analys av den ringformade koaxiala borrhålsvärmeväxlaren
The borehole heat exchangers of today suffer from poor thermal and hydrodynamic performance. The purpose of this thesis is to improve the performance of ground source heat pump systems and thermal energy storages by increasing the energy efficiency of the borehole heat exchangers. For this reason, the annular coaxial borehole heat exchanger (CBHE) has been analyzed. This type of heat exchanger is interesting in terms of both thermal and hydrodynamic performance. A model has been set up in the program Comsol Multiphysics in order to investigate the heat transfer characteristics along the borehole.
Arbete och arbetstidi det postindustriella samhället : En jämförande attitydstudie mellan Sverigeoch USA med fokus på arbetstidsförkortning
Within the field of welfare research, few people take into account both the aspect of gender and class. Thetraditional class-oriented research has a one-dimensional perspective on gender and the feminist welfare researchrarely carry out large comparative studies. A multi-dimensional perspective on the construction ofgender and class would benefit from both the feminist and class welfare-oriented research, and contribute toincreasing the knowledge about the individual's experience and attitudes to work and work time. The aim ofthis paper is to examine the correlation of the intersectional relationship between sex / gender position andclass position with the attitudes and motives for working time reduction. Especially in, (1) the value in work,and (2) the attitude to a high number of working hours, as well as (3) its combined effect on the conflict betweenwork and family.