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AbstractIn the fall of 2003 a project was started in the Swedish building sector that is called BASTA (the building sectors’ termination of especially harmful substances). The project is operated by the building companies NCC, Skanska, PEAB and JM, the Swedish Building Industry …
… sealings on a cylinder piston. The surface wanted is a surface with both low frictional forces and small leakage. This study was done with the goals of investigating and determining existing surfaces due to the frictional force and leakage. How can we in an easy manner describe …
… forces higher than the design force the roll and the bearing houses move. The friction force is kept at a minimum by moving the bearing houses around a joint, which promotes lineload measurements. The lineload is generated when pulp pass between the rolls. The developed solution …
… the flow in a 2D?version of the curve shape. A factor for compensation of the friction losses caused by the fuel flowing along a curved surface has been determined from an estimation of velocity loss based on these 2D flow visualizations. Care has been taken in the design of the …
Extremt snålspolande toalett
… flushing for cleaning the toilet-bowl. The toilet-bowl is treated with a low friction surface during production, which makes the cleaning process more reliable. The authors are very pleased with the developed concept since the solutions and the design of the toilet are …
… shown to be quite simple to implement and its cause was due to that the friction was to big in the shackle, which function is to be pressed down by the wire, and thereby didn’t trigger an alarm on the computer screens. To prevent this, lubrication was done for respective shackle …
… it is creating side forces up in the cylinder. These forces are creating friction and wear on the piston and the cylinder. Today’s engines have an efficiency loss in total of 70%. 30 % is lost in the cylinder. Solving this problem could result in a heavy increasing of the …
… change in thickness it might be enough to lower the force by reducing the friction in terms of better lubrication and modified tools.
… the stress in the thread gets optimized and a coating or lubricant with a low friction coefficient will lower the torque. Three possible solutions are suggested.
… lubrication was shown to be of great importance in order to decrease the friction and force development. The load increases when the extraction angle is changed from 45° downward to 45° upward, which can arise in a lying cow. The calf extractor can moreover by its placement near …
… this thesis. The quality parameters looked at were fineness, strength, length, friction, and colour. The impact of external growth factors and plant development on these quality properties are discussed. No industrial norms for hemp textile fibres are available. However, there …
… hur lågpolygonobjekt kan detaljeras och optimeras för visning i HPL2, Frictional Games egenutvecklade motor. Uppsatsen jämför arbetsflödet för texturutveckling i applikationerna Zbrush och Mudbox och behandlar både modellering och tekniska aspekter av texturering.
Vindkraft är ett miljövänligt energislag med stor utvecklingspotential, både i Sverige ochutomlands. I det här examensarbetet sammanfattas de viktigaste bitarna av kunskapen sombehövs för att förstå sig på vindkraft, med fokus på meteorologi och kommunikation medkonsultföretag i …
This master thesis reviews advances in detection and diagnosis of static friction (stiction) in control valves. Control valves suffering from stiction results in oscillating control loops which in turn decreases both the process stability and reliability. Perstorp AB sees a …
Design, simulering och experimentell verifiering
… which in turn has led to problems with flexibilities, nonlinearities and friction. In order to handle these challenging dynamic problems and achieve high accuracy this study introduces state observers to estimate the tool position.The observers use measurements of the motor …
