Essays about: "Acoustic Emission AE"

Found 5 essays containing the words Acoustic Emission AE.

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

   University essay from Uppsala universitet/Strukturkemi

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

   Abstract : 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. READ MORE

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

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

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

   Abstract : 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. READ MORE

4. 3. High Temperature Tribology in Hot Stamping

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

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

   Abstract : 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. READ MORE

5. 4. Acoustic emission methods in fatigue testing

   University essay from KTH/Maskinkonstruktion (Inst.)

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

   Abstract : 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. READ MORE

6. 5. CONDITION MONITORING OF GEAR FAILURE WITH ACOUSTIC EMISSION

   University essay from Blekinge Tekniska Högskola/Avdelningen för maskinteknik

   Author : VINCENT OGBONNAH; [2007]
   Keywords : Acoustic Emission AE ; Pitting; Wavelet;

   Abstract : Acoustic emission (AE) is an efficient non destructive testing technique for the diagnosis of machine health used in this thesis. The thesis involves using the recorded experimental data obtained from Acoustic emission signals to show how changes over time of different characteristics of acoustics emissions can be used as diagnostic measures of pitting damages on gear teeth. READ MORE