Essays about: "Stability Margins"

Showing result 1 - 5 of 12 essays containing the words Stability Margins.

  1. 1. Estimation of Stability Margins for the Closed-Loop Air Charge Control of an Internal Combustion Engine Using Sinusoidal Disturbances

    University essay from Linköpings universitet/Fordonssystem

    Author : Victor Sundelin; Filip Jussila; [2021]
    Keywords : Estimation; Stability Margins; Closed-Loop; Air Charge Control; Internal Combustion Engine; ICE; Sinusoidal Disturbances;

    Abstract : The vehicle industry have for many years improved the design of car motors and iterated the control systems associated with it. The systems have become very complex and hard to understand because of this work process. READ MORE

  3. 2. Processes of lateral moraine formation at a debris-covered glacier, Suldenferner (Vedretta di Solda), Italy

    University essay from Lunds universitet/Geologiska institutionen

    Author : Monika Rabanser; [2019]
    Keywords : Lateral moraines; Moraine genesis; Moraine stability; Debris-covered glaciers; Clast shape; Alps; Sedimentology; Glacier fluctuations; Earth and Environmental Sciences;

    Abstract : Lateral moraines are key features of glacial landscapes in high-alpine mountain areas. Research on lateral moraine formation is mostly limited to clean-ice glaciers; lateral moraine formation at the margins of debris-covered glaciers is currently poorly understood in an Alpine and sedimentological context. READ MORE

  4. 3. Multi-Objective Mixed-Integer Linear Optimisation of Aircraft Load Planning

    University essay from KTH/Optimeringslära och systemteori

    Author : Kristján Óttar Rögnvaldsson; [2019]
    Keywords : ;

    Abstract : A general multi-objective optimisation model is developed for the load planning decision process of a bulk loaded commercial aircraft, using the Airbus A321 fitted with additional fuel tanks as a baseline platform. The model’s input is a specific set of load items, with associated quantities, mass and volume. READ MORE

  5. 4. Spinning LED figure : Resolution of projecting a 3D image

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Peter Fjellander; Simon Gärtner; [2015]
    Keywords : ;

    Abstract : The thesis is a study about pixel density of a 3D projection, projected by a spinning ring with LED attached to its surface and which parameters impact the pixel density. A theory of when and how the 3D projection occurs was developed. The theory is based on the works of Max Wertheimer in 1912 on the subject of ϕ-movement. READ MORE

  6. 5. Design of an Alternative Frequency Controller for Hydropower Stations : Reducing the 60-second Floating in the Grid Frequency of the Nordic Power System

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Camilla Odelbrink; [2014]
    Keywords : hydropower; frequency controller; frequency floating; lead lag;

    Abstract : A periodic oscillation in the grid frequency of the Nordic power system has been observed. The oscillations, also denoted as a floating, have periods of about 60 to 90 seconds. The reason for the floating is not fully known, and the strength of the floating has been increasing during the last years. READ MORE