Essays about: "Non-linear Dynamics"

Showing result 16 - 20 of 89 essays containing the words Non-linear Dynamics.

  1. 16. Modelling and Dynamic Performance of Hydropower in Frequency Regulation : Modelling of Double Regulated Hydropower Turbines

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

    Author : Kristinn Arnar Ormsson; [2021]
    Keywords : Frequency Containment Reserves FCR ; Hydropower; Double regulated DR turbine; Non-linear modelling; Simulink.; Frekvensreserv FCR ; vattenkraft; dubbelreglerad DR turbin; icke-linjär modellering; Simulink.;

    Abstract : The frequency of the Nordic power system has been increasingly deviating outside the normal frequency band (50 ± 0.1 Hz) in the past two decades. In an effort to counteract this, the Nordic Transmission System Operators (TSOs) have proposed new and stricter requirements on the units participating in Frequency Containment Reserve (FCR) market. READ MORE

  3. 17. Simulated cerebrospinal fluid motion due to pulsatile arterial flow : Master Thesis Project

    University essay from Umeå universitet/Institutionen för fysik

    Author : Jesper Hägglund; [2021]
    Keywords : Computational fluid dynamics; Fluid structure interaction; Pulsatile flow;

    Abstract : All organs, including the brain, need a pathway to remove neurotoxic extracellular proteins. In the brain this is called the glymphatic system. The glymphatic system works by exchanging proteins from interstitial fluids to cerebrospinal fluids. The extracellular proteins are then removed through the cerebrospinal fluid drains. READ MORE

  4. 18. DESIGN, MODELLING AND CONTROL OF A THRUST BASED UAV

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Enrico Giacomini; [2021]
    Keywords : ;

    Abstract : The current year, 2021, started with the landing of the Perseverance mission and the flight of the first drone on Mars, marking an important event in the history of space exploration. The exploration of new environments would be easier and characterised by the absence of various obstacles if implementing a larger use of drones. READ MORE

  5. 19. Optimal torque split strategy for BEV powertrain considering thermal effects

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

    Author : Dhananjay Yadav; [2021]
    Keywords : Optimal torque-split control strategy; battery electric vehicles; thermal model of electric machines; system identification; model order reduction; co-simulation.; Optimal vridmomentsdelningsstyrningsstrategi; batteridrivna fordon; termiska modeller av elektriska maskiner; systemidentifiering; minskning av modellorder; samsimulering.;

    Abstract : A common architecture for electric vehicles is to have two electric machines one each on the front and rear axle. Despite the redundancy, this configuration ensures performance. Being energy efficient is equally important for electric vehicles to deliver a sufficiently high range. READ MORE

  6. 20. Implementation and comparison of the Aircraft Intent Description Language and point-mass Non-Linear Dynamic Inversion approach to aircraft modelling in Modelica

    University essay from Linköpings universitet/Fluida och mekatroniska system

    Author : Arcot Manjunath Shreepal; Shree Harsha Vijaya Kumar; [2021]
    Keywords : aircraft Modelling; Modelling and Simulation; Aircraft Intent; model-based systems engineering; Flight dynamics; Longitudinal stability; Aircraft Modelling; Non-linear Dynamic Inversion; Conceptual aircraft design; Dynamic Inversion; control methods; aircraft plant model; Object-oriented aircraft model; Air traffic management; Modelica; Modelon Impact; Modelica tool; 3DoF; AIDL; point-mass model;

    Abstract : The study is conducted to determine practical modelling and simulation techniques to perform dynamic stability and performance analysis on a 3 Degrees of freedom aircraft model using a Modelica-based commercial tool called Modelon Impact. This study is based on a conceptual aircraft model where in-depth details about the aircraft configuration are unknown and the aim is to determine a suitable model that can capture the longitudinal dynamics and aerodynamic constraints of the aircraft during the conceptual design phase. READ MORE