Search for dissertations about: "non-uniform beams"
Found 5 swedish dissertations containing the words non-uniform beams.
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1. Scattering on the Timoshenko Beam. Direct and Inverse Problems in the Time Domain
Abstract : This thesis concerns the use of time domain methods for treating direct and inverse scattering problems for flexural waves on beams. The Timoshenko equation is used throughout to describe the behaviour of such waves. READ MORE
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2. Wave Propagation in Structural Elements - Direct and Inverse Problems in the Time Domain
Abstract : The subject of this thesis is direct and inverse wave propagation problems in structural elements. The considered structures are beams, plates and rods. The models for the beams and the plates are based on linear theory, while the rods are assumed to be nonlinear. The greater part of the work concerns the Timoshenko beam. READ MORE
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3. Single-cycle undulator light
Abstract : The past decade has witnessed a sharp rise of interest in coherent terahertz (THz) light sources for applications in condensed-matter physics. These sources are a powerful tool for studying collective excitations in solid-state systems: THz light can directly couple to low-energy excitations on the meV-scale such as the collective excitations of spins and phonons. READ MORE
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4. Estimation of state and identification of complex modulus based on measurements om a bar traversed by waves
Abstract : Estimation of state and identification of complex modulus based on measurements on non-uniform rods and beams have been studied theoretically and experimentally. Two principal cases were studied. In the first case, the material properties are fully known and the state at a section is to be estimated. READ MORE
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5. Om kantbuckling av pappersbanan vid pappersproduktion
Abstract : Web wrinkling is one of the more common web handling problems, caused by shear forces, resulting from in-plane misaligned rollers. Several analytical models have been derived, mainly based on the theory of beams or membranes and isotropic material properties. READ MORE