Essays about: "structure fatigue"

Showing result 1 - 5 of 54 essays containing the words structure fatigue.

  1. 1. Load Control Aerodynamics in Offshore Wind Turbines

    University essay from KTH/Kraft- och värmeteknologi

    Author : Lorenzo Cantoni; [2021]
    Keywords : Wind Turbine; Offshore; Blade; Rotor; Computational Fluid Dynamics; Airfoil; Aerodynamic; Aeroelasticity; Simulation; Fluid; Structure; Interaction; Loads; Control; Response; Harmonics; Vibration; Damping; Flutter; Trailing Edge; Flaps; Wind Gust; Lift; Drag; Unsteady; Pressure; Velocity; Vindkraftverk; offshore; blad; rotor; beräkningsvätske-dynamik; flygplatta; aerodynamisk; aeroelasticitet; simulering; vätska; struktur; interaktion; belastningar; kontroll; respons; övertoner; vibrationer; dämpning; fladdring; bakkant; klaffar; vindstöt; lyft; Drag; ostadig; tryck; hastighet;

    Abstract : Due to the increase of rotor size in horizontal axis wind turbine (HAWT) during the past 25 years in order to achieve higher power output, all wind turbine components and blades in particular, have to withstand higher structural loads. This upscalingproblem could be solved by applying technologies capable of reducing aerodynamic loads the rotor has to withstand, either with passive or active control solutions. READ MORE

  2. 2. Vägskäl : ett gestaltningsförslag för Resta gårds parkområde med fokus på miljöpsykologi

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Sofia Hane; [2021]
    Keywords : miljöpsykologi; återhämtning; stress; park; rekreation; Resta gård; gårdsmiljö;

    Abstract : Det är viktigt att finna återhämtning i vardagen för att undvika mental trötthet, inte minst för de som utsätts för mycket stress eller lider av utmattning (Johansson 2020). Genom att ta hjälp av forskning inom miljöpsykologi är det möjligt att gestalta miljöer som erbjuder hög potential till mental återhämtning. READ MORE

  3. 3. Data-driven Strain Sensor Modelling in Mining Applications : Artificial strain sensors for material fatigue estimation

    University essay from Linköpings universitet/Fordonssystem; Linköpings universitet/Fordonssystem

    Author : Alex Rydén; Mattias Langsér; [2021]
    Keywords : Linear models; Machine learning; Ensamble learners; Time series; LTI; System identification; Strain estimation; Material fatigue; Data-driven modelling; Mining;

    Abstract : When boring machines are used, large loads are exerted on their structure. The load cycles cause material fatigue on the boring machine structure. If the material fatigue can be estimated in real-time, maintenance can be planned more efficiently and the effect of different types of usage can be evaluated. READ MORE

  4. 4. Self-levelling Platform Concept for a Winch-based, Single Point Absorbing, Wave Energy Converter

    University essay from KTH/Maskinkonstruktion (Avd.); KTH/Maskinkonstruktion (Avd.); KTH/Maskinkonstruktion (Avd.)

    Author : Anton Bergman; Robin Eriksson; Lars-Fredrik Grahn; [2020]
    Keywords : Point absorbing; Self-levelling; Wave power; Winch-based; Nivellerande; Punktabsorberande; Vågkraft; Vinschbaserat;

    Abstract : This report covers a bachelor thesis project to design a concept for a levelling system to a point absorbing wave energy converter that uses a winch with a chain, which has restricted capabilities to bending and thus requires a system which compensates for this. First of all, a literature study was made to see if there were any technologies that could be used, and also a wide search for information about the wave conditions in the Baltic sea were performed to find what requirements would be necessary for the concept to be able to withstand the conditions faced there. READ MORE

  5. 5. EMPATHIC DISTRESS : The Dark Side of Caring?

    University essay from Högskolan i Skövde/Institutionen för biovetenskap

    Author : Hilda Engelbrektsson; [2020]
    Keywords : compassion fatigue; empathic distress; personal distress; neural correlates;

    Abstract : The current review aims to unravel what is known regarding the neural substrates of empathicdistress and compassion fatigue. Empathic distress is a self-oriented feeling of anxietyexperienced in response to the suffering of another. It has been related to, and theorized to bea precursor of, compassion fatigue. READ MORE