Essays about: "hysteresis model"

Showing result 21 - 25 of 38 essays containing the words hysteresis model.

  1. 21. Modeling of a Hydraulic Braking System

    University essay from KTH/Reglerteknik

    Author : Christopher Lundin; [2015]
    Keywords : ;

    Abstract : The objective of this thesis is to derive an analytical model representing a reduced form of a mine hoist hydraulic braking system. Based primarily on fluid mechanical and mechanical physical modeling, along with a number of simplifying assumptions, the analytical model will be derived and expressed in the form of a system of differential equations including a set of static functions. READ MORE

  3. 22. Investigation of the transient nature of rolling resistance on an operating Heavy Duty Vehicle

    University essay from Umeå universitet/Institutionen för fysik

    Author : Petter Lundberg; [2014]
    Keywords : Rolling resistance; Air drag; Heavy Duty Vehicles; Vehicle dynamics; Complete vehicle test; Coastdown; Effective radius; ACEA; Pneumatic tires; Driving resistances; Energy efficiency; Rullmotstånd; Luftmotstånd; Tunga fordon; Fordonsdynamik; Helfordonstest; Utrullningstest; Effektiv radie; ACEA; Pneumatiska däck; Körmotstånd; Energieffektivitet.;

    Abstract : An operating vehicle requires energy to oppose the subjected driving resistances. This energy is supplied via the fuel combustion in the engine. READ MORE

  4. 23. 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. 24. Hysteresis and Avalanches

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Paul Jaeger; [2013]
    Keywords : ;

    Abstract : In this thesis crackling systems have been investigated. Applying an external force on these systems they respond with events of all sizes. The size distribution follows a power law of the form S¯ . Dierent types appear in nature like avalanches or earthquakes. READ MORE

  6. 25. Dynamic Modeling and Simulation of Digital Displacement Machine

    University essay from Fluida och mekatroniska system; Tekniska högskolan

    Author : Sanjib Chakraborty; [2012]
    Keywords : Digital Displacement machine; Digital Hydraulics; Hopsan; Digital fluid power; Generic model;

    Abstract : Improved efficiency, better controllability and low noise are the most demanding features form a displacement machine now-a-days. Most of the conventional displacement machines are basically a reciprocating pumping element controlled by valve plates or with the help of check valve [1]. READ MORE