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445 Uppsatser om Stepping motor - Sida 11 av 30

Doseringsutrustningen SafeBond Electronic

This thesis for the Master of Science degree was performed at Oppunda Electronics AB. The assignment was to further develop an existing prototype of a dispensing equipment. The dispensing equipment doses a kind of glue, bonding which dentist use to mend teeth. The dispensing equipment is adjusted to dose 12 micro litres of bonding. With the dispensing equipment SafeBond Electronic the user can reduce the bonding consumption with approximately 50 percent.

Konstruktion och montering av ett gasspjäll för en HCCI-motor.

Denna rapport handlar om införandet av ett gasspjäll i den HCCI motor som utvecklas påKungliga Tekniska Högskolan (KTH) i Stockholm. Detta gasspjäll styr effekten ocharbetssättet i motorn. Med en gasspjäll är det möjligt att byta från gnistantändning tillHCCI-läge. Under projektet har många andra områden förbättrats, till exempel luft- ocholjepump. För att dra slutsatser är det nödvändigt att analysera några av motorns data sominsamlats under utvecklingen, såsom cylindertryck, insprutningsdata och tändläge.

Vasastaden och gentrifieringsprocessen 1970-2010

Recent years there has been discussed how the critical situation in the housing market threatens the Stockholm region's growth. The thesis objective is to examine whether there is a scientific link between the lack of housing supply and growth. The thesis also intends to identify solutions for increased housing construction, for instance by examining the conditions for a greater regional perspective and influence on the region's housing supply. The thesis empirical study is based on semi-structured interviews with representatives from the Government, municipalities and the housing industry.In Sweden, research on the relationship between housing shortages and growth has not been conducted to that extent it can be said to exist scientific evidence regarding the growth threat. However, in Britain and the U.S, empirical studies show that a lack of housing supply has hindered growth through negative impact on countries' gross domestic product.

Introduction of water to reduce NOx emissions

Bakgrunden till detta examens arbete är behovet av att få lägre emissioner och dåspeciellt NOx emissioner. I detta arbete är olika NOx reduktions metoder beskrivna ochutvärderade. Tyngdpunkten har lagts på de ?våta NOx reduktions teknologierna? och dåspeciellt teknologier för att befukta insugsluften. Detta arbete består av en litteraturstudie, genomgång av test resultat från motor tester med dessa teknologier samtsimuleringar.NOx reduktionen genom at introducera vatten eller vatten ånga till förbränningenåstadkoms genom att sänka den maximala temperaturen i förbränningsrummet ochgenom att tillsätta inert media med hög värmekapacitet vilket också reducerarsyrekoncentrationen.

Oracular Spectacular - En studie av svensk bilindustris utveckling och framtida position

Den globala bilindustrin har under de senaste decennierna genomgått betydande förändringar, vilketskapat ett allt hårdare marknadsklimat. Detta har medfört att strategisk positionering i synnerhet blivitallt viktigare för aktörerna på marknaden. Försäljningen av Volvo Car Corporation och SaabAutomobile till Ford Motor Company samt General Motors under 1990-talet ansågs därför som ennödvändig åtgärd för att säkerställa Saabs och Volvos fortlevnad. Perioden under amerikansk ägandehar emellertid visat sig tuff och knappt ett decennium senare stod bilindustrin för sin kanske störstautmaning någonsin i sviterna av en extrem global lågkonjunktur. General Motor och Ford MotorCompany drabbades hårt, vilket ledde till att det inte längre ansågs ekonomiskt hållbart att behållaförlusttyngda bilmärken som Saab och Volvo.

Hardware-in-the-Loop simulering av motorservon på ett inbyggt system

This report presents a master thesis project performed at Elekta AB during the fall of 2013 and early 2014. Elekta is a medical technology company and their main product in the Stockholm office is a gamma knife used for radiosurgery. The gamma knife contains a cluster of a dozen motor servos and motors used for adjusting the patient and the radiation sources over a CAN bus. A self-developed hardware-in-loop simulator running on a PC with LabVIEW is currently being used for integration level testing of the control system of the gamma knife. The simulator has some problems with it not running in real-time and having other performance issues.

Betalningsmodeller för det svenska elnätet : Vilken modell kommer att fungera bäst för konsumenten?

Recent years there has been discussed how the critical situation in the housing market threatens the Stockholm region's growth. The thesis objective is to examine whether there is a scientific link between the lack of housing supply and growth. The thesis also intends to identify solutions for increased housing construction, for instance by examining the conditions for a greater regional perspective and influence on the region's housing supply. The thesis empirical study is based on semi-structured interviews with representatives from the Government, municipalities and the housing industry.In Sweden, research on the relationship between housing shortages and growth has not been conducted to that extent it can be said to exist scientific evidence regarding the growth threat. However, in Britain and the U.S, empirical studies show that a lack of housing supply has hindered growth through negative impact on countries' gross domestic product.

Analys och utveckling avverifieringsenhet för säker kontakteringvid kalibrering av RRUS.

This report presents a master thesis project performed at Elekta AB during the fall of 2013 and early 2014. Elekta is a medical technology company and their main product in the Stockholm office is a gamma knife used for radiosurgery. The gamma knife contains a cluster of a dozen motor servos and motors used for adjusting the patient and the radiation sources over a CAN bus. A self-developed hardware-in-loop simulator running on a PC with LabVIEW is currently being used for integration level testing of the control system of the gamma knife. The simulator has some problems with it not running in real-time and having other performance issues.

Modellbaserad drivlinereglering

A cars powertrain consists of everything that is needed for its propulsion. The components in the driveline that transfer the power from the engine to the driven wheels are not absolutely stiff, hence they will wind up due to the torque and act as torsion springs. If you suddenly demand a bigger torque by stepping on the accelerator pedal, a so called tip in manoeuvre, and that torque is acquired from the engine as quickly as possible, the driveline will not be able to transfer that fast torque change due to its weakness and as a result it will start to oscillate. These oscillations will be transferred to the driven wheels and make the car to accelerate jerkily which will be experienced as uncomfortable by the passengers. Furthermore, there is a backlash in the driveline that will make the weakness in the driveline even more excited than it should have been if the backlash did not existed.To avoid too big problems with these oscillations there is a control system that controls the demanded torque.

En kropp av bokstäver och ett alfabet av kroppar : Om kroppens och språkets materialitet i Helena Erikssons poesi

Based on the assumption that the work of contemporary Swedish poet Helena Eriksson, in various ways elaborates the inseparable relation between body and language, this study aims to investigate how this view of language comes to expression in her poetry. Stepping from a theoretical background of feminist perspectives on the body, as well as recent theories on poetic materiality, the analysis points out how the concepts of aesthetic and/or linguistic materiality, social and technological materiality, and what can be described as the ethical dimension of materiality, all as termed by Jesper Olsson and Fredrik Hertzberg, take on feminist implications in Eriksson?s poetry. Through the theory of feminist anthropologist Vicki Kirby and her account of Derrida?s general view of writing, the study makes use of a deconstructive approach to the later work of Eriksson.

Wobblerpump

The task was to design and manufacture a submersible displacement pump working with the wobble plate principle. The main task for the Wobble plate pump is to be used as a sewage pump for smaller households or dewatering pump in environments where small flows and high pressures are acquired. For these purposes ITT Flygt sell a screw pump, PC-Grinder 3068. The hydraulic part of the PC-Grinder is manufactured by a subcontractor. Therefore ITT Flygt wants to evaluate an alternative to their screwpump PC-Grinder, which can be entirely manufactured by them self.

PARAMETRISERAD DESIGN APPLICERAD PÅ EN MOTORSÅGSKEDJA

The main objective of this thesis was to develop appropriate strategies and find factors that affect the usability of parameterized designs. This was accomplished by investigate the user-interface and how it is designed to meet the user's information needs. The thesis also embraces the basic theories in terms of investigation, cognitive design principles and human behavior patterns in the interaction with the machine. The approach has led to an explorative investigation in this subject area.The thesis also had the purpose to achieve more efficient ways for development of motor chainsaws at Husqvarna AB's department Global Cutting Equipment. That can be achieved through reduce costs of development per sold unit.

Hållfasthetsanalys av infästningmellan AGV och motor : med hänsyn till femfaldig säkerhet mot brott

Automated Guided Vehicles, AGV:er, används i huvudsak som monteringsplattform inom tung fordonsindustri. En AGV kan användas vid montering av motorer, växellådor och chas-sin. AGV:n transporterar produkten genom en slinga i fabriken, där produkten monteras. Idag säljs AGV:n med ett löfte om femfaldig säkerhet mot brott för alla de ingående komponenter-na. AGV:n är konstruerad för att bära upp en last på maximalt 1800 kg, med säkerhetsfaktorn inkluderad.

Producktutveckling av mekanisk slitter

SammanfattningVår uppdragsgivare Metso Paper Karlstad AB är världsledande inom tillverkning av Tissue maskiner (tunn papper). Av Metso Paper fick vi uppgiften att utveckla en Mekanisk Slitter. En mekanisk slitter sitter monterad i slutet av en tissue maskin och har uppgiften att dela pappersbanan i flera delar beroende på hur många slittrar man valt att installera. Varför man delar pappersbanan är för att underlätta efterhanteringen av rullarna.Problemet med dagens Mekaniska Slitter är att den inte klarar av de säkerhetskrav som ställs för att få kunna vistas i området där den är installerad. Avståndet som klingan är oskyddad är för stort.

Akademiska studier - En väg in på arbetsmarknaden?

Our society has become a society of knowledge. The answer to the question of how to reduce unemployment has become more and more unified: education. In this case, higher education, meaning college and university. With this disposition in our society, how does it affect the students? How does this change of society and our universities affect the students of these institutions? In this study we have chosen to examine the choices of students in universities in several Swedish cities.

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