Essays about: "Sinusoidal excitation"

Found 4 essays containing the words Sinusoidal excitation.

  1. 1. Evaluating the performance of a vibration energy harvester under complex excitation

    University essay from Mittuniversitetet/Institutionen för elektronikkonstruktion

    Author : Zhiqiang Chen; [2020]
    Keywords : Vibration energy harvesting; harvester; closed-loop control; resonant frequency; prediction;

    Abstract : In recent years, vibration energy harvesting has become a research hotspot in the field of energy harvesting. Energy harvester output power is the most important parameter in a vibration energy harvesting system. Assessing the harvester output power in different vibration environments is an important study issue to study. READ MORE

  3. 2. Vibrational tests of preloaded rubber vibration isolators : A cam controlled displacement excitation

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Joanna Cierocka; Jiayue Tang; [2016]
    Keywords : Vibration test; Vibration isolator; Frequency response function; rubber; material properties; aging; camshaft; artificial aging;

    Abstract : Vibrations are very common phenomenon. It influences structures and generates acoustic noise which might be harmful to human beings. The vibration isolator was invented to reduce the effect from vibrations. However, the behavior of rubber material, which many vibration isolators are made of, is hard to predict. READ MORE

  4. 3. Control Systems for Experimental Magnetic Materials Characterization Using Dynamic Preisach Models

    University essay from KTH/Elektrisk energiomvandling

    Author : MAHSHID MEHRPARVAR; [2014]
    Keywords : Characterisation; Magnetic material; Sinusoidal excitation; Hysteresis; Modeling; Dynamic Preisach model; Disturbance observer control; Karakterisering; Magnetiska material; Sinusformad excitation; Hysteres; Modellering; Dynamiska Preisach modellen; Disturbance observer baserad reglering;

    Abstract : The eciency of electrical machines is of major concern due to their widespread usage and the globally increasing awareness of energy consumption issues. Iron losses have a signicant impact on the total and thus researchers and manufacturers of electrical machines are developing dierent strategies in order to reduce them. READ MORE

  5. 4. Implement vibration test control system, in MATLAB for National Instrument equipment

    University essay from Institutionen för teknik, TEK

    Author : Fatemeh Fakharian; Ali Nafisi; [2011]
    Keywords : MATLAB; Data Acquisition Toolbox; Modal test; National Instrument; closed loop controlling;

    Abstract : Finding non-linearity is a common application of modal testing but in this way, there is a need to control the input signal. Nowadays, commercial data acquisition software is not enough flexible in controlling the applied signals, whereas MATLAB as general software which supports National Instrument makes it possible to run modal test and control input signal via closed-loop controlling. READ MORE