Sökning: "Acoustic Emission AE"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Acoustic Emission AE.

  1. 1. Konceptmätsystem i en Husqvarna motorsåg : Utveckling och design för integrering av mätsystem i en 540 iXP motorsåg

    M1-uppsats,

    Författare :Lucas Andersson; Sara Heikkilä; [2023]
    Nyckelord :Produktutveckling; integrering; AE-sensor;

    Sammanfattning : Denna rapport genomgår ett produktutvecklingsarbete för Husqvarna genom ett examensarbete på Jönköpings Tekniska Högskola. Projektet var att integrera ett datainsamlingssytem (H-DAS), Akustisk emissions sensor (AE-sensor) samt en display in i motorsågen 540 iXP. LÄS MER

  3. 2. Operando detection of Li-plating by online gas analysis and acoustic emission monitoring

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Inti Espinoza Ramos; [2023]
    Nyckelord :Li-ion batteries; graphite; solid electrolyte interphase; lithium plating; online gas analysis; operando acoustic emission monitoring;

    Sammanfattning : Lithium ion batteries (LIBs) are widely used for storing and converting chemical energy into electrical energy. During battery operation, lithium ions move between electrode materials, enabling energy storage. However, aging mechanisms like lithium plating can negatively impact battery performance and lifetime. LÄS MER

  4. 3. Bearing condition monitoring : An investigation on the possibility of monitoring aging of the lubricating grease by means of acoustic emission and temperature.

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Dilesh Raj Shrestha; [2021]
    Nyckelord :Acoustic Emission; Fourier Transform; Infrared Spectroscopy; Condition Monitoring; Total Acidic Number; Fast Fourier Transform; Scanning Electron Microscopy; Rheology; Bleed Oil; Grease degradation;

    Sammanfattning : Grease is among the most widely used lubricants in rolling element bearings. Proper understanding of the effect of lubrication due to grease aging can provide a significant increase in the life of the engineering systems. However, at present, there is no sufficient understanding of the grease aging effect in rolling elements bearing. LÄS MER

  5. 4. High Temperature Tribology in Hot Stamping

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Evan Kurnia; [2019]
    Nyckelord :high temperature tribology; hot stamping; acoustic emission; condition monitoring; hardfacing;

    Sammanfattning : Many automotive components are made of Al-Si coated ultra-high strength boron steel (UHSS) and are produced by hot stamping process. In this process, the workpiece is heated to an austenitizing temperature and is then formed and quenched simultaneously between the tools to achieve the desired shape and high strength. LÄS MER

  7. 5. Acoustic emission methods in fatigue testing

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Axel Lison Almkvist; [2015]
    Nyckelord :Acoustic emission; AE; grey iron; CFRP; Akustisk emission; AE; gråjärn; CFRP;

    Sammanfattning : Acoustic emissions are small vibration pulses, elastic waves, emitted from damage processes such as crack growth inside a material. Acoustic emission (AE) is also the name of the test method in which theses emissions are recorded and analysed and the method is used in materials research and the testing and inspection of structures. LÄS MER