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516 Uppsatser om Chair manufacturing - Sida 11 av 35
Optimering av smidesgeometri för P-fläns på bakre turbinstativ (TEC)
This thesis work has been performed at Volvo Aero Corporation in Trollhättan, at the department of ?hot structures? involving aircraft engine GP7000. The purpose with the study was to investigate the possibility to reduce size of the forging of flanges on the rear turbine frame when purchasing. Thereto examine the parameters that affect the flanges motion during the manufacturing process. The goal was to provide Volvo Aero with foundation to later bring in slimmed forgings.
Fallstudie av produktionschefers ledarskap
The thesis presented in this report has been made on behalf of Scania and their basic frame design department with the subject to solve an implementation of a weight sensing system in the chassis. The system is supposed to be implemented in the seat springs, and the reason for this is that all the force will have to go through the weight sensing transducers. With all the force going through the transducers the weight sensing system will not be sensitive for the differences in tolerances from manufacturing. The transducers could be pre-calibrated to avoid a calibration of the whole vehicle after it?s completed from the manufacturing line.Weight sensing systems is today a reality in trucks with air springs.
Utvärdering av ModFix : Byggnation av modulära fixturer integrerat i Process Simulate
Syftet med detta projekt är att utvärdera ModFix som verktyg och arbetsmetoden för att skaps fixturer med ModFix. ModFix är ett verktyg som är integrerad i Siemens simuleringsmiljön Process Simulate och används för att skapa modulära fixturer. Målsättningen med arbetsmetoden där fixturer skapas med ModFix är att ledtiden och mantimmarna för att skapa fixturer ska reduceras med 50 % i jämförelse med Volvo Cars nuvarande arbetsmetod där fixturer skapas med Catia V5.ModFix-verktyget består av tre funktioner. Dessa funktioner är; Configuration Administrator, Fixture Designer och Modular Fixture Mapping Report. Configuration Administrator är ModFix´s administrationsverktyg och används för att skapa de fixturbaser och fixturkonfigurationer som senare används för att skapa modulära fixturer med Fixture Designer.
Framtagning av en utvecklingsprocess för automation - baserat på konceptet Lean Automation
Due to the globalization today the competition in the market has in- creased and it requires flexibility and produce according to customer demand. In order to reduce the cost of wages industrial companies are now considering moving the manufacturing to low-cost countries. To keep up with the competition in the market without moving the manu- facturing abroad, Lean Automation was developed. The concept of Lean Automation is to reduce the perceived complexity with automa- tion and make automation available for new users and in new applica- tions.Haldex Brake Products are situated in Sweden and want to maintain the manufacturing of the automatic brake adjusters in the country. It is a product well-known and highly exposed to the competition in the mar- ket.
du&jag - The car seat for you and me
Car seats for smaller children, offers very good protection incase of a collision. Unfortunately for the parents? sake , these car seats is heavy to handle outside the car. For example back and forth home and short errands around town. In other words, all those times when you decide to just take out the car seat and carry it instead of place the baby in a baby carrier.
Utveckling av säte till kulventil SKV
This report contains a degree project made by the mechanical engineering students Lennart Andersson and Daniel Jansson. The project has performed in assignment by SOMAS Valves AB in Säffle. SOMAS are leading in development on control and on/off valves. To maintain this position they always want to improve their products. One way in this development is valves that are more tightened.The purpose with our project was to investigate another seat design on a HiCo (High Cobalt Alloy) seat to a SKV 150 PN 25 valve and compare this to an original HiCo seat.By modifying the seat on a ball valve we want to achieve a valve that leaks lesser then a valve whit original seat.
Fermented sausage : product development at Lindell's Gårdsslakteri
Product development is a risky business; many products never yield profit, but it is also ne-cessary for a company?s survival in a competitive business where the costumers change their requests constantly. Consumer-led product development is developed from the wish to fill the consumer?s needs and expectations and thereby be more likely to succeed. Lindell?s Gårdsslakteri AB is a local slaughter and meat processor in Västergötland.
Unified Flow Sensor
Value stream mapping is a tool that is frequently used by many different companies. It is a great tool used to achieve the work that follows the theories of lean production. The tool is used, however, only frequent on the factory floor and the method is also designed based on this type of use.An interest of applying the method on administrative parts of the company has occurred lately. Administrative parts of the company refers to the part that does all the planning such as purchasing, receiving orders, customer contact, contact with factory floor and other work that is made around the actual manufacturing. But the knowledge about applying value stream mapping on the planning part of the company is lacking because the method is relatively new.In this work, a comparison is made between the introduction of value stream analysis on production and planning.
Kommunikativt miljöhus : Nya lösningar för soprummet
Value stream mapping is a tool that is frequently used by many different companies. It is a great tool used to achieve the work that follows the theories of lean production. The tool is used, however, only frequent on the factory floor and the method is also designed based on this type of use.An interest of applying the method on administrative parts of the company has occurred lately. Administrative parts of the company refers to the part that does all the planning such as purchasing, receiving orders, customer contact, contact with factory floor and other work that is made around the actual manufacturing. But the knowledge about applying value stream mapping on the planning part of the company is lacking because the method is relatively new.In this work, a comparison is made between the introduction of value stream analysis on production and planning.
Chassiintegrerade lastceller : Installation i fjädersäte på Scania tandemboggibakaxlar
The thesis presented in this report has been made on behalf of Scania and their basic frame design department with the subject to solve an implementation of a weight sensing system in the chassis. The system is supposed to be implemented in the seat springs, and the reason for this is that all the force will have to go through the weight sensing transducers. With all the force going through the transducers the weight sensing system will not be sensitive for the differences in tolerances from manufacturing. The transducers could be pre-calibrated to avoid a calibration of the whole vehicle after it?s completed from the manufacturing line.Weight sensing systems is today a reality in trucks with air springs.
Optimering av sintrade kugghjul
Powder Metal (PM) gears are machine element components which operate under the same principle as conventional gears, but, due to their intrinsic material characteristic need to be designed slightly different, and its manufacturing process offers advantages previously unobtainable by conventional steel gear manufacturing methods. The use of PM in similar applications, such as synchronous hubs, makes them a suitable candidate for production in such material. The current master thesis work focuses on gear design using PM by utilizing finite element method (FEM) to reduce weight and inertia taking into account root bending strength and tooth deflection.First a topological optimization is used to determine feasible candidates for different web designs which have as objective to reduce volume, similar topologies were shown during different loading conditions; and hence, this topology was chosen as a suitable candidate. A shape optimization of the topological candidate was performed having as state variables root bending strength, independent for compressive and tensile side of the tooth loading; and tooth deflection, which in concept can be correlated to static transmission error (TE).Another aspect in this thesis analysed is the possibility to incorporate non-trochoid root geometry, a trochoid root is always present when machining with a hob, into the gear root and hence reduce the stress concentration here. Due to the use of PM, a non-symmetric optimized root can be achieved and hence be optimizing compression and tension.Results showed significantly lower inertia, for example certain results showed 40% reduced when compared to solid gear, with adverse effects as increase in tooth deformation and increase in maximum principal stress.
Vårdinrättningens fysiska miljö : Ur patientens perspektiv
Fysisk aktivitet kan förebygga och minska åldersrelaterade fysiologiska och psykologiska förändringar. Effekterna av funktionell träning för äldre är dåligt studerat. I Sörmland pågår ett fallpreventionsprojekt som syftar till att halvera antalet höftfrakturer till år 2012. Studiens syfte var att undersöka om äldres balans, benstyrka och self-efficacy, en persons grad av självtillit att utföra en specifik aktivitet framgångsrikt, påverkades av att göra fem uppresningar från sittande till stående två gånger om dagen under fyra veckor. En intervention genomfördes med 23 deltagare på ett servicehus/äldreboende.
Det bästa av två världar : Ett examensarbete om färg och trä och vad de kan ge varandra
Detta är en undersökning om färg och trä och hur de tillsammans kan skapa ett mervärde ihop, hur människor upplever och uppfattar färg och träkombinationer.Färg och trä är de ämnen jag valt att jobba med under mitt examensjobb. Det är två stora och väldigt närvarande ämnen i vårt dagliga liv. Min förstudie handlar om simultankontrast och hur vi människor drivs av att förstärka och tydliggöra skillnader som i sin tur bildar en balans,en harmoni.Jag har med hjälp av resultat av en enkätundersökning, litteraturstudier och praktiskt gestaltningsarbete försökt tydliggöra och lyfta fram de möjligheter som dyker upp om man vågar jobba med färg och trä i samma kontext.I undersökningens frågeformulär presenterades en ask och en körsbärs träbit med vardera 8 olika kulörer men inom samma färgskala. Jag ville undersöka hur man upplever färg i kombination med trä.Undersökningen visade att den färg som i kulör stod längst från asken respektive körsbärsträdet naturliga färg var den som testpersonerna oftast föredrog. Resultatet stämmer med den sedan tidigare kunskapen om att människor strävar efter att förstärka och tydliggöra skillnader i det visuella gestaltandet.Resultatet applicerade jag på två stolar, så kallade easy chair.
Utveckling och dimensionering av en lastupptagande provningsram
ÅF Test Center in Borlänge had a need to expand their capacity for compressive and tensile strength tests. They wanted to do this by using a hydraulic cylinder, which they already possessed, to apply the force with. This required a load receiving structure. The aim of this work was to design and dimensioning a test bench for a cylinder marked NIKE 300 tons. The work would result in a completed design proposal on a test bench which could manage to run the compressive and tensile strength tests of up to 3000 kN.
Folkhälsa i Oxelösund : en statistisk jämförelse
Oxelösund är en liten kommun på den Södermanländska kusten. Denna kommun har trots sin storlek stora problem med ohälsa i form av bland annat hög andel missbrukare. Dock kan man se att hälsoproblemen i Oxelösund är mer omfattade och innefattar i princip alla områden av folkhälsan. Man kan se att riskfaktorerna delvis är fler än friskfaktorerna. Detta kan vara en del i samhällets habitus, man en ohälsosam livsstil i Oxelösund..