Essays about: "torsional vibrations"

Showing result 1 - 5 of 10 essays containing the words torsional vibrations.

  1. 1. Investigation of torsion modes in overhead traveling cranes: : Reviewing the ISO 22980 standard

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Simon Jens; [2023]
    Keywords : Overhead traveling crane; Finite element method; Frequency and experimental vibration analysis; Travers; finita elementmetod; egenfrekvensanalys; experimentell vibrationsanalys;

    Abstract : Overhead cranes and rail mountings in the wall are subjected to vibrations whenlifting equipment. The purpose of this thesis is to review if the minimum frequencyvalue for cranes, according to the ISO 22986:2007 standard is conservative whendesigning overhead traveling cranes. READ MORE

  3. 2. Development of extension tool for high dynamic tightening : Degree project in Mechanical Engineering, specialisation Machine Design

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Hugo Axelsson; [2022]
    Keywords : tightening; Dynamic; Extension;

    Abstract : Atlas Copco Industrial Technique AB is a global supplier of systems, software, services, and tools for the global assembly industry with keywords such as ergonomics, productivity, and traceability central to Atlas Copco’s products. The objective of the thesis was to construct a prototype tool based on the result of a previous course held at Luleå University of technology. READ MORE

  4. 3. Experimental Investigation of Fluid-added Parameters on a Kaplan Runner

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Malin Strandberg; [2021]
    Keywords : Added mass; added inertia; fluid dynamics; hydropower; Kaplan turbine; fluid-solid interaction;

    Abstract : In order to reach climate and environmental goals, Sweden is increasing the implementation of intermittent renewable energy sources such as wind and solar power to the electricity grid. The increase of intermittent energy sources is rising power regulation requirement towards hydropower, which increasingly exposes the hydraulic turbines to high loads and fluctuating hydraulic forces. READ MORE

  5. 4. Development of PMSM and drivetrain models in MATLAB/Simulink for Model Based Design

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

    Author : Gokul Sivaraman; [2021]
    Keywords : Electric Vehicles; Permanent Magnet Synchronous Machine; flux; flux linkage; Inductance; Model based design; Finite Element Analysis; Mechanical drivetrain; Magnetic saturation; Cross-coupling; Spatial harmonics; Temperature; Active oscillation damping; ABS wheel speed sensor; CAN bus.; Elektriska fordon; synkronmaskiner med magneter; magnetiskt flöde; induktans; modellbaserad design; Finite Element Analys; mekanisk drivlina; magnetisk mättnad; magnetisk tvärkoppling; MMF övervågor; temperatur; aktiv oscillationsdämpning; ABS hjulhastighetssensor; CAN buss.;

    Abstract : When developing three-phase drives for Electric Vehicles (EVs), it is essential to verify the controller design. This will help in understanding how fast and accurately the torque of the motor can be controlled. READ MORE

  6. 5. System modelling of a tightening tool

    University essay from KTH/Teknisk mekanik

    Author : Caroline Eriksson; [2020]
    Keywords : ;

    Abstract : With the help of modern computational power it has become much more common to employ simulation driven development. When performing simulations before creating prototypes and actual test, companies can reduce both the time spent on the development and the cost. READ MORE