Essays about: "FEM-simulering"

Showing result 1 - 5 of 6 essays containing the word FEM-simulering.

  1. 1. Evaluation of Crack Depth Meter - An investigation of the crack depth meters possibilities and limitations for commonly occurring damage mechanisms

    University essay from KTH/Hållfasthetslära

    Author : Alfred Norberg; [2023]
    Keywords : Crack depth measurement; RMG 4015; ACPD; Damage Mechanism; Evaluation; FEM Simulation; Sprickdjupsmätning; RMG 4015; ACPD; Skademekanism; Utvärdering; FEM-simulering;

    Abstract : In this master thesis, the accuracy of the crack depth meter RMG 4015 was evaluated for different types of cracks with various damage mechanisms. In total, 61 crack depth measurements were conducted with the crack depth meter on 56 cracks which were located in the 23 different test pieces supplied by Kiwa. READ MORE

  3. 2. Modelling and Simulation of Interior Permanent Magnet Synchronous Machine and, Design Optimization Towards Transmission

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

    Author : Sindhuja Balaji; [2022]
    Keywords : Traction motors; Electric vehicles; Interior permanent magnet synchronous machine; Electric machine FEM simulation; Flux 2D; Electric machine design optimization; Estimation of current and control angle; Multi-objective optimization.; Traktionsmotor; elektriskt fordon; permanentmagnetiserad synkron maskin; FEM simulering; Flux 2D®; design optimering elmaskin; Skattning av ström och styrvinkel; multi-objektiv optimering.;

    Abstract : This report summarizes the thesis study carried out at Scania CV AB. The study presents design optimization of an interior permanent magnetic (IPM) synchronous machine. A parameterised Matlab tool was developed in order to serve the optimization routine. READ MORE

  4. 3. Dielectric Response and Partial Discharge Characteristics of Stator Winding Insulation System with SiC Stress Grading

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

    Author : Amar Abideen; [2020]
    Keywords : Stator Insulation; Dielectric Frequency Response; Polarization Depolarization Current; Insulation Modelling; FEM simulation;

    Abstract : The typical construction of a stator coil includes the use of end corona protection (ECP)coating, which is made of semi-conductive materials like silicon carbide (SiC). Thepurpose of ECP is to smooth the electric stress distribution near the slot exit, limitingthe electric field and partial discharge (PD) activity within the insulation system. READ MORE

  5. 4. An armored truck cab design : Case study: investigation of selected steel grades

    University essay from KTH/Materialvetenskap

    Author : Filippo Pellegrini; [2020]
    Keywords : Ballistic steel; single and double layer protection; truck cab; dynamic softening; Ballistiskt stål; enkel- och dubbelskiktsskydd; konstruktion av lastbilshytt; dynamisk mjukning;

    Abstract : This study aimed at defining useful guidelines for the design of an armored truck cab. Particularly, the quality and performance of ballistic steel were defined, considering not too high demanding requirements. Two steel grades, corresponding to hardness of 500 HB and 600 HB, and three different suppliers were selected. READ MORE

  6. 5. Electromagnetic modellin and testing of a Thomson coil based actuator

    University essay from KTH/Elkraftteknik

    Author : Bence Hátsági; [2017]
    Keywords : Actuator design; FEM simulation; HVDC; hybrid circuit breaker; Thomson coil; vacuum interrupter iii; Aktuatordesign; FEM-simulering; HVDC; hybridbrytare; Thomsonspole; vakuumbrytare;

    Abstract : The aim of the present thesis is to improve and optimize a Thomson coil based actuatorfor medium voltage vacuum interrupters. The Thomson coil based actuator’s concept isdiscussed. The thesis presents analytical as well as finite element models of the actuatoralong with a comparison of their results. READ MORE