Sökning: "acoustic analysis"
Visar resultat 21 - 25 av 234 avhandlingar innehållade orden acoustic analysis.
21. Acoustic Emission in Composite Laminates - Numerical Simulations and Experimental Characterization
Sammanfattning : .... LÄS MER
22. Hybrid and Dynamic Substructuring Methods for Energy Flow Analysis
Sammanfattning : Modeling techniques and solution tools to analyze the dynamic and vibro-acoustic behavior of complex built-up structures are matters of increasing interest, especially for thin walled structures as in transportation vehicles, such as automobiles, trucks, trains and aircraft. In structures like these, the reduction of cost, weight, sound and vibration levels are primary issues for research and development. LÄS MER
23. Numerical methods for load and response prediction for use in acoustic fatigue
Sammanfattning : 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. LÄS MER
24. The material distribution method : analysis and acoustics applications
Sammanfattning : For the purpose of numerically simulating continuum mechanical structures, different types of material may be represented by the extreme values {,1}, where 0.... LÄS MER
25. Numerics of Elastic and Acoustic Wave Motion
Sammanfattning : The elastic wave equation describes the propagation of elastic disturbances produced by seismic events in the Earth or vibrations in plates and beams. The acoustic wave equation governs the propagation of sound. LÄS MER