Essays about: "vibrationer"

Showing result 21 - 25 of 162 essays containing the word vibrationer.

  1. 21. Investigation of Vibration in Electrical Circuit used in Maritime Applications

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Babak Rouhani; [2022]
    Keywords : Mechanics; Vibration; Modal analysis; Electronic equipment; Circuit board; Mekanik; Vibration; Modal analys; Elektronik utrustning; Kretskort;

    Abstract : This paper presents an investigation of a problem discovered in electronic equipment where mechanical load was the leading cause of the issue. Finite Element Analysis is used to investigate vibration issues in soldering and components. Simulations are performed with ANSYS modal and random vibration package. READ MORE

  3. 22. Multibody modelling of the vibrations in an aircraft engine

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Charly Mollet; [2022]
    Keywords : Vibrations; Multibody Modelling; Rolling Bearings; Rotor Dynamics; Reduction Processes; Vibrationer; multikroppsmodellering; rullingslager; rotordynamik; reducktionsprocesser;

    Abstract : During the assembly of aircraft engines, some clearance is left in the rolling bearings mainly to reduce friction. However this clearance might allow the rolling element to vibrate during flight. Indeed, unwanted vibrations called non-synchronous vibrations (NSV) appear on the data recorded by the sensors on some development engines. READ MORE

  4. 23. NVH analysis and optimization of electric powertrain

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Anujit Dafle; [2022]
    Keywords : Electric powertrain; Gear whine; Noise Vibration Harshness NVH ; Elektrisk drivlina; kuggvin; buller och vibrationer;

    Abstract : With increasing focus on electromobility many companies are developing vehicles powered by an electric energy source. Previously, engines used to be the most prominent source of noise in a traditional Internal Combustion Engine (ICE) vehicle. READ MORE

  5. 24. Numerical study of a vibroacoustic wave trap for e-vehicles

    University essay from KTH/Teknisk akustik

    Author : Antoine Curien; [2022]
    Keywords : wheel vibrations; passive vibration control; multiple tuned mass damper; bending mode; numerical optimisation; damping; resonance; robustness; reduction methods; Hjulvibrationer; passiv vibrationsreglering; multi tuned mass damper; böjningsläge; numerisk optimering; dämpning; resonans; robusthet; modale reduktionsmetoder;

    Abstract : The transition from internal combustion engine to battery electric cars is accompanied by a shift on the NVH issues damaging the passenger comfort. The rolling noise generated by the wheels and tyres is in particular characterized by an increasing attention from OEMs and car manufacturers. READ MORE

  6. 25. Comparative Analysis of Real-Time Industrial Ethernet Protocols : ModbusTCP Protocol Implementation

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

    Author : Roshni Maniraj; [2022]
    Keywords : Industrial Ethernet; Communication Protocols; Real-time communication protocols; Modbus TCP; EtherNet IP; PROFINET IO; Ethernet Powerlink; EtherCAT®; CC-Link IE; Sercos III; Industriellt Ethernet; kommunikationsprotokoll; kommunikationsprotokoll i realtid; Modbus TCP; EtherNet IP; PROFINET IO; Ethernet Powerlink; EtherCAT®; CC-Link IE; Sercos III;

    Abstract : Industrial Ethernet Communication protocols for Real-Time communication is the focus of research in a variety of different industrial Applications. The subject of thesis study is a comprehensive analysis of Industrial Ethernet protocols used in safety-critical real-time environment, comparing these based on performance, safety, diagnostics and error detection features, topology preference, cost incurred and openness of the protocol. READ MORE