Essays about: "vibrations"

Showing result 1 - 5 of 394 essays containing the word vibrations.

  1. 1. Mining infrequent group of motifs from multidimensional time series: A case study at Alfa Laval AB

    University essay from Högskolan i Halmstad/Akademin för informationsteknologi

    Author : Fabeena Thoufeeq; Reeba Susan Ashok; [2024]
    Keywords : ;

    Abstract : In collaboration with an industrial partner, Alfa Laval AB, this thesis discusses a novel approach for identifying operational modes, specifically a cleaning mode, in separator machines without the benefit of labelled data and with very limited operating knowledge. Understanding the operational modes is crucial for comprehending the machine’s behaviour and ensuring its optimal performance. READ MORE

  3. 2. Vibrational signals as indicators of soil fauna health? : A novel approach to environmental monitoring of ants

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Joel Fransson Forsberg; [2023]
    Keywords : Vibrations; Formica ants; Vibrometer; Vibrational signals; Imidacloprid; Before-After-Control-Impact;

    Abstract : Soil fauna provides processes of crucial importance for ecosystem functions, but our ability to observe their actions often depend on destructive methods where the integrity of the studied environment (the soil) is compromised. In this study, I develop and test a new generation of environmental monitoring tools that utilize vibrations made by soil macrofauna to inform about their performance and health. READ MORE

  4. 3. Impact of Frame Stiffness on Tribological Behaviour of Sliding Interfaces

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Nisha Singh; [2023]
    Keywords : coefficient of friction; friction-vibration interaction; stiffness; tribometer; vibrations; friktionskoefficient; friktion-vibrationsinteraktion; styvhet; tribometer; vibrationer;

    Abstract : Friction and wear have been concerns to industrialists, scientists and environmentalist for several decades. Many robust models have been developed to address friction and wear and their dependency on various parameters. Numerous experiments have been conducted in the past to model friction and wear. READ MORE

  5. 4. Detecting Pollutants Using Vibrations : Laser Doppler Vibrometry as a Non-Invasive Soil Organism Health Monitoring Method

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Kristoffer Wilson; [2023]
    Keywords : Vibrometer; Biotremology; Imidacloprid; Ants;

    Abstract : Due to a lack of in-situ methods capable of detecting sub-lethal effects of pollutants on soil organisms, many polluted environments are not identified prior to pollution-induced changes in the soil fauna. Therefore, there is a need to develop new non-invasive methods to measure the health of soil organisms. READ MORE

  6. 5. Investigation of torsion modes in overhead traveling cranes: : Reviewing the ISO 22980 standard

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Simon Jens; [2023]
    Keywords : Overhead traveling crane; Finite element method; Frequency and experimental vibration analysis; Travers; finita elementmetod; egenfrekvensanalys; experimentell vibrationsanalys;

    Abstract : Overhead cranes and rail mountings in the wall are subjected to vibrations whenlifting equipment. The purpose of this thesis is to review if the minimum frequencyvalue for cranes, according to the ISO 22986:2007 standard is conservative whendesigning overhead traveling cranes. READ MORE