Essays about: "Dynamic boundary conditions"

Showing result 1 - 5 of 46 essays containing the words Dynamic boundary conditions.

  1. 1. Dynamic response of damped attachments in fighter applications

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

    Author : Katja Nordström; [2023]
    Keywords : Vibration isolator; printed circuit board; vibrations; natural frequency; Vibrationsisolator; kretskort; vibrationer; resonansfrekvenser;

    Abstract : This thesis investigates the impact of vibration isolators on circuit boards during harsh vibrationenvironments that occur when they are mounted on the wings of a fighter jet. To examine thisphenomenon, a mathematical model and a simulated model were developed to determine theresonant frequencies of the circuit board under various boundary conditions. READ MORE

  3. 2. Vibrations in a high frequency clt floor panel - Measurement, prediction and evaluation

    University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Author : André Wirthig; [2023]
    Keywords : Vibrations; High frequency floors; Sensitive equipment; Technology and Engineering;

    Abstract : There is an increased need for floors that can accommodate different type of sensitive equipment [1]. Further, it is recommended to design these floors as high frequency floors (HFF) to be able to meet the stringent vibration criteria [1]. READ MORE

  4. 3. Moving in the dark : Mathematics of complex pedestrian flows

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Meghashyam Veluvali; [2023]
    Keywords : Mathematical modelling of pedestrian dynamics; stochastic systems; evacuation time; random walk method; parabolic equation; finite difference method;

    Abstract : The field of mathematical modelling for pedestrian dynamics has attracted significant scientific attention, with various models proposed from perspectives such as kinetic theory, statistical mechanics, game theory and partial differential equations. Often such investigations are seen as being a part of a new branch of study in the domain of applied physics, called sociophysics. READ MORE

  5. 4. Boundary conditions at left ventricle wall for modelling trabeculae in blood flow simulations

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Lukas Werner; Ellen Leonardsson; [2022]
    Keywords : Trabeculae; CFD; Computational Fluid Dynamics; Hemodynamics; Blood Flow Simulations; Endocardial wall; porous; boundary conditions;

    Abstract : Heart disease is the main cause of death today, and studying causes and treatments are of great interest. Blood flow simulations using computational fluid dynamics shows promise in providing insight into this area. This study builds upon previous work by Larsson et al. and Kronborg et al. READ MORE

  6. 5. CFD Analysis of the Flow Into a Preheater

    University essay from KTH/Teknisk mekanik

    Author : Eric Axtelius; [2022]
    Keywords : Mechanics; Fluid Mechanics; CFD; Preheater; Moisture Separator; Nuclear; Steam; Heat Transfer;

    Abstract : This project has investigated and formed a basis for the thermal- and flow-induceddynamic loads in the lower parts of a preheater situated in a nuclear power plant.Special attention has been given to the bottom plate that separates the heated andnon-heated secondary steam. READ MORE