Essays about: "active vibration control"

Showing result 1 - 5 of 15 essays containing the words active vibration control.

  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

  3. 2. Active Control of High­-Speed Flexible Rotors on Controllable Tilting­-Pad Journal Bearings : Theory and Experiment

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Paul-Henrik Bull; [2021]
    Keywords : ATPJB; Fluid-Film Lubrication; Model based control; Vibration Control;

    Abstract : A common choice of bearing for industrial applications such as turbomachinery and rotating compressors is the Tilting-Pad Journal Bearing (TPJB) due to its excellent stability properties. TPJB's are however limited by the reduction of damping in the fluid film at high velocities. READ MORE

  4. 3. Semi-active suspension seats in High speed crafts

    University essay from KTH/Marina system

    Author : Victor Ekström; [2019]
    Keywords : ;

    Abstract : The working environment of a high-speed-craft (HSC) can be uncomfortable and hazardous for the crew and passengers on board. This due to the repeated exposure to high levels of vibration and shocks, that can lead to reduced performance and severe injuries to the back and neck. READ MORE

  5. 4. PHM Approaches for Reliability of ECUs : Analyses of Canaries and Real-Time Data Acquisition

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Gabriel Dag; [2017]
    Keywords : solder joint; vibration; thermal cycling; microcontroller;

    Abstract : Today, Scania CV AB is facing challenging demands on functionality and performance within their vehicles. The electronics are increasing rapidly and to stay competitive on the market, concerns regarding reliability of electronic systems needs to be evaluated. READ MORE

  6. 5. Control Strategies for Active Suspension with Pneumatic Actuators

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : YUCHAO LI; [2016]
    Keywords : ;

    Abstract : Skogsindustrin är en stor del av Sveriges ekonomi. Med hjälp av den så kallade kapa till längd metoden, vilket betyder att träden först kapas till lämplig längd och sen forslas de till sidan av en väg med hjälp av "forwarders", går det det uppnå hög produktivitet och automatisering. READ MORE