Search for dissertations about: "FEM acoustic"
Showing result 1 - 5 of 18 swedish dissertations containing the words FEM acoustic.
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1. Structural-acoustic vibrations in wooden assemblies : Experimental modal analysis and finite element modelling
Abstract : This doctoral thesis concerns flanking transmission in light weight, wooden multi-storey buildings within the low frequency, primarily 20-120 Hz. The overall aim is to investigate how the finite element method can contribute in the design phase to evaluate different junctions regarding flanking transmission. READ MORE
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2. Design, Modelling and Control of Electrical Machines - With Applications to Iron-powder Machines and Acoustic Noise
Abstract : This thesis consists of two parts, the first dealing with the design of iron-powder synchronous machines, and the second with the analysis and prediction of the acoustic noise in electrical machines. In Part I, a 1.6 kW electrically magnetized claw-pole machine with magnetically conducting end-plates has been analyzed and a prototype tested. READ MORE
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3. Finite Element Procedures for Fluid-structure Interaction
Abstract : This thesis concerns finite element (FE) methods for solving fluid-structure interaction (FSI) problems. Two types of fluid-structure interaction are considered. A finite element method for solving the interaction between a flowing incompressible fluid and a linear elastic structure is proposed. The flow is assumed to be laminar. READ MORE
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4. A study of hierarchical FE solutions of Biot's equations for acoustic modeing of poroelastic medial
Abstract : .... READ MORE
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5. Modelling of compaction of metal powder and damage accum ulation due to fatigue in powder materials
Abstract : This thesis addresses powder manufactured (P/M) components, with special attention to the compaction process and to the sensitivity to damage accumulation due to fatigue within powder compacted specimens. Three dimensional simulations of the compaction process have been performed, using an explicit dynamic dilatant finite strain finite element code supplemented with the effects from contact friction within the die, modelled by Coulomb friction. READ MORE