Engineering Project Reports, Dissertation, Engineering Thesis, Working Papers, Examples, Tips, Resources and Information
The aim of this dissertation work is to understand active control of sound fields inside a three-dimensional rectangular enclosure into which noise is transmitted through a flexible boundary. To this end, analytical and numerical studies have been conducted. In the modeling efforts,
A Networked Control System (NCS) is a control system in which the sensors and actuators are connected to a feedback controller via a shared communication medium. In an NCS, the shared medium can only provide a limited number of simultaneous connections for
Both Measurement While Drilling (MWD) and image analysis systems are useful tools that today are in use in mining industry. The data interpretation for both systems has been proposed by different studies, but often requiring site specific calibration. Sometimes the interpretation methods
To be able to study high pressure properties and synthesis of carbon nanostructures, we built a pressure control box to regulate and fine tune pressure to our membrane diamond anvil cell (MDAC). Using ruby fluorescence method, we calibrated the pressure in the
The passive security systems protect the passengers when the car has an important accident. These systems are based in a good and strength car structure to not deform the passenger cabin. In Gestamp Hardtech are producing pieces with an important strength without
This study considers production of methanol as a motor fuel, generated from coke oven gas at the steel mill SSAB Tunnplåt in Luleå. In addition, different systems with a biomass gasification plant included are considered. The produced synthesis gas is mixed with
Migrating fish that swim upstream rivers for reproduction need to overcome obstructions like hydropower plants in their path to the spawning grounds. To guide the fish pass the obstruction fishways are often used. Since most of the water in regulated rivers flow
Assessment of pillar stability is one of the most crucial steps in mine design (Sjöberg, 1992). South African platinum mines has reached a point where layouts made for shallow operations are insufficient due to increased depth, creating a necessity for new design
Snow water equivalent (SWE) of annual snowpacks is of major importance for Scandinavian hydropower industry, since reliable predictions of snowmelt are needed for an efficient energy production. SWE over large areas can be estimated using ground penetrating radar operated from helicopters or
For the fabrication of iron ore pellets at LKAB (Luossavaara-Kiirunavaara AB), one of the methods used is to sinter the pellets in a rotary kiln. This Kiln has a drift temperature of 1250°C in average. During this process a coating, causing the