Search for dissertations about: "Acoustic fatigue"
Showing result 1 - 5 of 21 swedish dissertations containing the words Acoustic fatigue.
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1. Numerical methods for load and response prediction for use in acoustic fatigue
Abstract : Acoustic fatigue can occur in structural elements of an aircraft exposed to very high sound pressures. To deal with acoustic fatigue, mainly empirical methods have been applied and often late in the design phase. Current design guidelines have three main limitations. First, they do not say anything about the load intensities. READ MORE
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2. Numerical methods for load prediction in acoustic fatigue
Abstract : Acoustic fatigue can occur in structural elements of an aircraft exposed to very high sound pressures. To deal with acoustic fatigue, mainly empirical methods have been applied and often late in the design phase. Current design guidelines have several limitations. First, they do not say anything about the load intensities. READ MORE
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3. 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
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4. Condition monitoring of process equipment made from plastic materials
Abstract : .... READ MORE
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5. Counteracting Acoustic Disturbances in Human Speech Communication
Abstract : A signal can be said to be any information bearing unit or action carrying a message from a sender to a receiver. This definition covers a vast number of human and non-human actions, ranging from flirtation to satellite communication. This thesis deals with increasing the quality of one of the most ubiquitous human-to-human signals: Speech. READ MORE