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6452 Uppsatser om Machine design - Sida 6 av 431
Introduktion till online PD : en specificering och jämförelse av tillgängliga mätsystem
During Spring semester 2011, Linda Engstrom and Malin Heder performed ?Golden Ratio?, a thesis which included 22.5 hp. The thesis followed the syllabus for the Degree Project for degree of Bachelor of Science in Innovation and Design Engineering (MSGC12) which was a unit in the Innovation and Design Engineering program within the Faculty of Technology and Science at Karlstad University.The client was Crem International AB, a company located in Åmotfors that develops the design, manufactures and markets coffee machines. The supervisor at the company has been Peter Larsson and supervisor at Karlstad University has been Monica Jakobsson. Examiner for the thesis has been Professor Fredrik Thuvander at the Faculty of Technology and Science at Karlstad University.Crem International AB controls a patent, representing a new technology to streamline and minimize use of energy during the coffee preparation and results in a good coffee quality.
Gallring med vinkelkran : en jämförande studie av skördarkran med och utan horisontellt ledad vipparm
One of the most important components of a harvester is the crane. Most harvester cranes are only possible to pivot (or horizontally rotate) at the crane pillar. Cranab in Vindeln, Sweden, has developed a new type of harvester crane which has an extra pivot point on the outer boom. This makes it possible to reach around residual trees, easing thinning work in dense stands.
The aim of the study was to analyze if the use of a pivoting outer boom (POB) crane gave an increase in thinning production and if there were any differences in time consumption between the work elements for the POB crane and a conventional crane. A Valmet 911.3 equipped with a POB crane was used in the study.
Opera i Stockholm, Galärvarvet
During Spring semester 2011, Linda Engstrom and Malin Heder performed ?Golden Ratio?, a thesis which included 22.5 hp. The thesis followed the syllabus for the Degree Project for degree of Bachelor of Science in Innovation and Design Engineering (MSGC12) which was a unit in the Innovation and Design Engineering program within the Faculty of Technology and Science at Karlstad University.The client was Crem International AB, a company located in Åmotfors that develops the design, manufactures and markets coffee machines. The supervisor at the company has been Peter Larsson and supervisor at Karlstad University has been Monica Jakobsson. Examiner for the thesis has been Professor Fredrik Thuvander at the Faculty of Technology and Science at Karlstad University.Crem International AB controls a patent, representing a new technology to streamline and minimize use of energy during the coffee preparation and results in a good coffee quality.
Design management i produktutvecklingsföretag : Samarbetet mellan en design manager och en designkonsult
Design management är ett arbetssätt som har börjat tillämpas av allt fler företag de senaste åren, men det kan fortfarande vara svårt att förstå betydelsen av design management. I uppsatsen undersöks det vilken betydelse en design managers kompetens och position har för samarbetet mellan det designköpande företaget och en designkonsult under ett designinköp. Genom ett flertal intervjuer, utifrån både design managers och designkonsulters perspektiv, undersöks det hur samarbetet fungerar mellan dessa parter. En analys av intervjumaterial med hjälp av en teoretisk referensram bestående av design management-teori, design som en integrerad process och beslutsrollsteori har lett fram till ett antal slutsatser om design management. Några av slutsatserna är att design management, enligt teorierna, som arbetssätt inte är så vanligt och att det finns en viss samarbetsbrist enligt de intervjuade designkonsulterna, som i viss mån underlättas om design managern har kunskap om vad design innebär..
Konstruktion av ränndalskap CPD08
Our Bachelor?s Thesies has been performed in co-operation with Cellplast Direkt AB inLaholm. Our task was to develop a construction that cuts gussets to ceiling disposition as isused to isolation.Our goal with our construction was to increase the degree of automation so that theproductivity increased and also meet the market which is getting tougher and tougher due tothe future business cycle.Cellplast Direkt gave us free hands in order to enable new ideas. A pair different principleproposal was developed and prepared to a final structure.The Bachelor?s Thesies resulted in one PLC - governed machine with three engines that runthree different moves, wich does that the degree of automation increases and the risk forerrors decreases.We have developed a complete production bases to Cellplast Direkt and our hope is that thecompany comes to produce the machine in the future..
Biomekanisk mätmetod och ergonomisk analys av träningsmaskiner
To get the maximal output of your exercise in gym machines, there are different factorsto be considered. For example the strength of the muscle varies dependent on the positionof the muscles. To get the best results of the exercise the load has to reduce and increaseat specific positions.This study was made in cooperation with Caretaker Scandinavia AB, a company forsales, marketing and development in health care. They are general agent for Nordic Gymwho works with manufacturing of equipment and machines for gym and fitness.The aim of this study was to generate a method of measurement to evaluate and controlthe biomechanics of Nordic Gym´s workout equipment. A protocol for an ergonomicanalysis on the equipment has also been elaborated.One of the methods to measure the biomechanics was to measure the torque through thewhole movement.
Värmeväxlare med luftkonditionering för tvättstugor
The energy in laundry rooms, in form heated air, can be utilized with a heat exchanger. A concept and an early prototype of the heat exchanger have already been developed to show that the theory works. This report describes the continued development and construction of the product.A field study was made in order to investigate the environmental usage and establish the product design. The most common washing machine was used as a calculation model, and calculations were also made to estimate the amount of energy in the air. A previous analysis of the existing prototype is also presented in this report, to show the products potential capacity.
Underhåll av underhållsarbete
The traditional view of maintenance is machine-based, where acute maintenance tasks are highly valued. Preventive maintenance is viewed as secondary and less desirable to work with. The more modern view is to regard maintenance as a process. The machine-driven tasks are still necessary but are viewed as a part of the big picture.The purpose of this study is to examine how to high light general difficulties concerning maintenance management to aid organizations to reflecting upon their own situation. The study is based upon a pilot study initiated by ProcessIT concerning relevant key figures in maintenance.
Utökade tillämpningsmöjligheter för turbinlösning i våtpartiet hos tissuemaskiner : Konceptförslag som möjliggör tillämpning av turbinlösning för maskiner vars banbredd är bredare än 2,9 meter
AbstractThis thesis is the final part of the Innovation and Design Engineering Programme (180 ECTS credits)at the Faculty of Health, Nature and Engineering Science at Karlstad University. The extent of thisthesis is 22.5 ECTS credits and has been performed independently by Hannes Jernberg during thespring of 2013. Metso Paper Karlstad AB is the task maker of this project, and Arvid Johansson is thecompany Representative. Metso Paper Karlstad AB is one of the world leading developer andmanufacturer of tissue paper machines.In the current situation, the company has developed and patented a power management systembased on a Cross Flow Turbine. The current construction is limited to a paper width of 2.9 meters.The company wants to take advantage of all the opportunities provided by the patents, to develop aturbine solution paper machine with a paper width that is wider than 5.5 meters, and give the abilityto manufacture paper for lower energy consumption which is an important part of the production asit is very energy intensive.Problems arise with the increasing length of the turbine, ultimately resulting in that the deflectionbecomes too big and that the momentums, due to the increased torque the turbine blades breaks.By applying the design process, this work has resulted in a number of potential solutions to theproblem.
Designprincipers applicerbarhet på domänen streamad-TV
In our study, we investigated how the streamed TV domain relates to existing design principles for web design. Further, we have investigated whether there are specific characteristics of the domain that the design principles do not cover. In the survey we have studied two sites which are representative of the streamed TV domain. Finally, we discuss how applicable the design principles are for the domain and the specific characteristics that would require new or further developed design principles..
Triac Driver Platform
In the electronic industrials, power control of AC motors is commonly used. For example power control of a washing machine motor, a vacuum cleaner motor or a coffee machine motor. The company Rejlers Ingenjörer AB has many projects where power control of AC motors is included. A prototype card for this task can save time and money for the company in the future and this is the reason for this thesis.The motors are power controlled by a TRIAC and control of the trigging pulses to the TRIAC. This card is modularly built and can easily be adapted for future projects where the power control of AC motors are included.The prototype card can be used as a subsystem in a larger electronics projects or as it is in lab environment for testing and evaluating new motors..
Underhållskostnader för tröskor :
Costs of maintenance on combines are a subject of interest thus it constitute a large
investment and cost for the individual farmer. Therefore it is important to have up to
date knowledge and the right facts to be able to do reliable calculations on one of the
largest investments for a farmer.
The aim of this study was to compare costs of maintenance on combine/threshingmachine
with the computer program for advising environmental issues in agriculture,
STANK. Interviews took place and data were collected by handing out questionnaires to
20 farmers. A similar study conducted by Neuman (2003) investigated costs of
maintenance and compared these with STANK. The results of this study have also been
compared and examined related to data from SLA - Skogs och
Lantarbetsgivarförbundet.
The result shows that 18 out of 20 combines were given a higher cost of maintenance
when using STANK compared to the numbers in this study.
Användarorienterad förarsituation för bergavläsning vid fjärrstyrt skrotningsarbete
Mechanical scaling is one of the most complex operations of all in the mining process. The operators are using both hearing, sight and feel to read the rock and to know where to scale and where to leave. They say they go on gut feeling in great extent, something that comes with experience. The scaling machine is placed into the edge of unsecured and newly blasted rock to hammer off the blocks that has become loose after the blast, but not enough to fall down. It goes without sayingthat it is a risky job.
Mätstation för rullmotstånd i massiva gummihjul
This is a report that describes the entire process of design of a measuring station for rolling resistance. The report is structured with elements of Fredy Olsson's method.The report also includes a brief presentation of HGF, the company that will manufacture the machine. Requirements and preferences are set up and used in a weighting of criteria by which product suggestions are based. These suggestions are used in the evaluation to produce a final draft product. Solutions to major functions are produced by criteria?s. Component selection for all components is performed, a CAD-based model is developed and an economic analysis is set up. FMEA analysis is set up. The report ends with a brief summary, critical review and suggestions for further work..
Nyckelfaktorer för en designs slutskede
The final stage of a designers work is always a bit tricky. Design is an abstract phenomenon and no one can tell when a design is really finished. The design process that designers work within has been thoroughly studied but cannot be truly mapped with strict constraints which the designer can follow to succeed. Therefore, in this paper we take a look at the final stage in the design process. The main goal is to get more knowledge and highlight key factors about what designers face when they are about finish their design or what forces them to leave a project that can stay in development for eternity.