Sökning: "non-linear finite element modelling"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden non-linear finite element modelling.

1. 1. FE-modelling of glulam connection in a pre-tensioned glulam truss : Detailed Finite element modelling of the connection between primary beam and compression stud in a sub-tensioned glulam roof truss

   Master-uppsats, KTH/Bro- och stålbyggnad

   Författare :Edward Sebastian Swaretz; [2022]
   Nyckelord :Glulam; sub-tensioned roof truss; connection; instability; Abaqus Standard; Finite element method;

   Sammanfattning : After the collapse of the roof structure in Tarfalahallen 2020, great attention has been focused on instability of sub-tensioned glulam roof trusses. Investigations were launched to find the reason for the collapse and the cause was instability in the roof truss that supported the roof. LÄS MER

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

   Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

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

   Sammanfattning : 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. LÄS MER

4. 3. FE Simulation of protective insulation of catalysts in exhaust after-treatment systems of trucks and buses : Investigation and characterization of catalytic converter support mat material for accurate modeling in finite element simulations

   Master-uppsats,

   Författare :Manroop Bhattasali; [2022]
   Nyckelord :Catalytic converter; packaging mats; support mats; compression; friction; hyperelastic; hyperfoam; viscoelastic; canning; finite element;

   Sammanfattning : The increase of new and ever more stringent emission legislation has brought about with it a surge in the demand for more sustainable automotive solutions. This has particularly been the case for automobiles, including heavy-duty vehicles like trucks and buses, with internal combustion engines, which now require the design and manufacturing of more durable and reliable components. LÄS MER

5. 4. An investigation of the design of cylinderical steel tanks modelled according to EN14015 and according to the Eurocodes

   Master-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)

   Författare :Yonas Gebre; [2022]
   Nyckelord :Keywords: Steel tank; Wind; Snow; FEM; Shell buckling; Non-linear analysis;

   Sammanfattning : Abstract Storage tanks are above or below ground vessels for storing chemicals, petroleum and other liquid products. Above ground vertical cylindrical shells are typically thin walled structures prone to buckling and lose their stability especially when they are empty or have lower fluid level due to external loads. LÄS MER

7. 5. Investigation of methods to analyse global stability of a reinforced concrete stabilising core

   Master-uppsats, KTH/Bro- och stålbyggnad

   Författare :Evelina Husak; Ellinor Persson; [2022]
   Nyckelord :;

   Sammanfattning : Ensuring the structural stability of a building is an evident requirement for the building to be safe to use. This becomes a qualified task for a structural engineer. Ensuring stability has become especially important nowadays while stabilising elements often are kept to a minimum and tall buildings are common. LÄS MER