Essays about: "structure fatigue"

Showing result 11 - 15 of 68 essays containing the words structure fatigue.

1. 11. 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

3. 12. Concept Design Improvement of Shift Fork for New Dog Clutch Actuator : Simulation driven product development approach

   University essay from Jönköping University/JTH, Industriell produktutveckling, produktion och design

   Author : Nirmal Srinivasan; [2021]
   Keywords : Product development; Dynamic analysis; Equivalent-static load; Finite Element Method; Fatigue analysis; High-Pressure Die Casting; Computer-Aided Engineering; Computer-Aided Design; Topology optimization.;

   Abstract : Kongsberg Automotive is developing a brand-new actuator for engaging and disengaging a clutch for different driveline applications. This master thesis research improves the concept design of the shift fork for the new Dog-Clutch Actuator using Design for Manufacturability (DFM). READ MORE

4. 13. 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

5. 14. Life and fracture in very high cycle fatigue of a high strength steel

   University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

   Author : Daniel Karlsson; [2021]
   Keywords : Very high cycle fatigue; VHCF; Fractography; Fine granular area; FGA; High strength tool steel; Ultrasonic testing equipment;

   Abstract : Classical fatigue models teach that there is an intrinsic fatigue limit for steels, representing a level of stress that is too low for regular crack growth where every cyclic load propagates a fatigue crack through the material. Modern application with extreme lifetimes has shown that fatigue will still take place in steels with stress levels well below the expected fatigue limit. READ MORE

6. 15. Floating Terminal: Technical Lifetime of 60 Years

   University essay from KTH/Lättkonstruktioner

   Author : Henrik Lindholm; [2021]
   Keywords : Corrosion; Fouling; Fatigue; Korrosion; Beväxning; Utmattning;

   Abstract : Offshore solutions for container infrastructure such as Sea Technologies' floating container terminal can bring both environmental benefits and transport efficiencies for shipping.Large investment costs and requirements for long-term operational reliability for such structures entail the need for long technical service life. READ MORE