Essays about: "Rayleigh wave"

Showing result 1 - 5 of 9 essays containing the words Rayleigh wave.

  1. 1. Identifying subarctic river thermal and mechanical ice break-up using seismic sensing

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Stefania Ursica; [2021]
    Keywords : Ice break-up; River ice; Subarctic; Thermal melting; Mechanical break-up; Freeze-up; Environmental seismology; Seismic signals;

    Abstract : River-ice break-up in high-latitude regions, despite its brevity, is a fundamental process, representing the most dynamic and complex period of fluvial processes. Moreover, ice break-up has significant cascading ecological effects, with a different severity for mechanical vs. READ MORE

  3. 2. Response of Buildings Exposed to Blast Load - Method Evaluation

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

    Author : Carl Löfquist; [2016]
    Keywords : Explosion; Blast Wave; Impulse; Rayleigh-Ritz metod; Ritz vectors; Computational effeciency; Modal Reduction; Eurocode; Technology and Engineering;

    Abstract : Due to accidental external explosions ,which is not handle in the Eurocodes, are structural designers looking for other ways to design loads for external loads due to explosions. This combined with lighter building structures is a reason to address the issues of analysing the dynamic behavior of buildings subjected to air blasts from these extreme situations. READ MORE

  4. 3. Theoretical and experimental investigation of the pulsejet engine

    University essay from KTH/Energiteknik

    Author : Théo Bour; Félix Coutand; [2016]
    Keywords : ;

    Abstract : The motivation behind this master thesis is the renewed interest in pulsejet engines towards power or thrust generation for small UAV’s. As technologically simple as it may seem, pulsejet engines appear to be the subject of ongoing scientific debate and controversy with regard to their operating principle. READ MORE

  5. 4. Numerical analysis of vibrations due to impact pile driving

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

    Author : Sebastian Andersson Olivecrona; Rasmus Sulander; [2016]
    Keywords : Finite element method; Concrete pile; Impact pile driving; Ground vibrations; Soil mechanics; Soil dynamics; COMSOL Multiphysics; Technology and Engineering;

    Abstract : Vibrations originating from constructional work can affect the nearby soil and structures. Depending on the properties of the vibrations, these can result in settlements in the soil and damages to existing structures. Along with blasting, impact pile driving is one of the greatest sources of vibrations on a construction site. READ MORE

  6. 5. Calculation of Wave Propagation for Statistical Energy Analysis Models

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Hussam Bashir; [2015]
    Keywords : SEA; Rayleigh; wave; corner;

    Abstract : This thesis investigates the problems of applying Statistical Energy Analysis (SEA) tomodels that include solid volumes. Three wave types (Rayleigh waves, Pressure wavesand Shear waves) are important to SEA and the mathematics behind them is explainedhere. READ MORE