Essays about: "fft analysis"

Showing result 11 - 15 of 46 essays containing the words fft analysis.

  1. 11. Development of Stockham Fast Fourier Transform using Data-Centric Parallel Programming

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Gabriel Bengtsson; [2020]
    Keywords : ;

    Abstract : Writing efficient scientific applications for modern High Performance Computing (HPC) systems has become much harder during the last years due to the rise of heterogeneous computer architectures. The inclusion of hardware accelerators has caused an increase in the number of required technologies to reach high performance, a change that has programming these systems outside the skill-set of a domain scientist. READ MORE

  3. 12. Fault detection of planetary gearboxes in BLDC-motors using vibration and acoustic noise analysis

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Henrik Ahnesjö; [2020]
    Keywords : Planetary gearbox; Fault detection; Condition Monitoring; Support Vector Machine SVM ; Machine Learning; Supervised Machine Learning; Defect Pinion; Defect Planet Gear; MATLAB; LabVIEW; Soundproof-box; Noise Vibration Harshness NVH ; Gearmesh Frequency GMF ; Power Spectrum; BLDC-motor;

    Abstract : This thesis aims to use vibration and acoustic noise analysis to help a production line of a certain motor type to ensure good quality. Noise from the gearbox is sometimes present and the way it is detected is with a human listening to it. This type of error detection is subjective, and it is possible for human error to be present. READ MORE

  4. 13. Vibration analysis for condition monitoring of mechanical presses

    University essay from Lunds universitet/Industriell Produktion

    Author : Julia Runesson; [2019]
    Keywords : Vibration analysis; Predictive maintenance; Condition monitoring; Mechanical press; Press maintenance; PSD; DFT FFT; RMS; Kurtosis; Technology and Engineering;

    Abstract : In a world where the concept of just-in-time has been lifted outside of the manu-facturing world and onto the market, the increasing demand of luxury wares like cars is accompanied only by tougher industrial conditions and no room for error. Loss of productivity and decrease in efficiency can be devastating to any manufac-turing company in today’s market climate. READ MORE

  5. 14. Chassis predictive maintenance and service solutions

    University essay from KTH/Fordonsdynamik

    Author : Prakhar Tyagi; [2019]
    Keywords : ;

    Abstract : Predictive Maintenance (PdM) accumulates data from multiple sensors developing a statistical model which identifies the key failures even before they take place. The main focus of this thesis work has been the proposal of a machine learning based system designed for predicting the failure of mechanical parts that require replacement. READ MORE

  6. 15. Fractional Fourier Transform and Scaling Problem in Signals and Images

    University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Author : Achyutha Ramarao Maddukuri; [2018]
    Keywords : Dynamic scaling; Fractional Fourier transform; Fourier transform; Pattern recognition; Signal and Image change detection;

    Abstract : Context: We identify a material or thing that can be seen and touched in the world as having structures at both coarser and finer levels of scale. Scaling problem presents in a branch of science concerned with the description, prediction understanding of natural phenomena and visual arts. READ MORE