Search for dissertations about: "fan vibration"
Found 4 swedish dissertations containing the words fan vibration.
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1. Numerical simulation of viscous compressible flows applied to turbomachinery blade flutter
Abstract : .... READ MORE
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2. Numerical Simulations of Turbulent Flows at Widely Different Mach Numbers
Abstract : The present thesis mainly focuses on the numerical simulation of the turbulent flow field and acoustics developed in different industrial applications. The study covers a large range of Mach numbers, starting from incompressible regimes and ending with a fully compressible flow. READ MORE
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3. Numerical investigation of the sensitivity of forced response characteristics of bladed disks to mistuning
Abstract : Two state of the art finite element reduction techniquespreviously validated against the direct finite element method,one based on classical modal analysis and another based oncomponent mode synthesis, are applied for efficient mistunedfree vibration and forced response analysis of several bladeddisk geometries. The methods are first applied to two testcases in order to demonstrate the differences in computationalefficiency as well as to validate the methods againstexperimental data. READ MORE
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4. Experimental Investigation of the Influence of Local Flow Features on the Aerodynamic Damping of an Oscillating Blade Row
Abstract : The general trend of efficiency increase, weight and noise reduction has derived in the design of more slender, loaded, and 3D shaped blades. This has a significant impact on the stability of fan, and low pressure turbine blades, which are more prone to aeroelastic phenomena such as flutter. READ MORE