Sökning: "vibrationer vakuumteknik akustik hydraulik Maskinteknik vacuum technology vibration and acoustic eng"
Visar resultat 1 - 5 av 45 avhandlingar innehållade orden vibrationer vakuumteknik akustik hydraulik Maskinteknik vacuum technology vibration and acoustic eng.
1. Computational Aeroacoustics Based on Large Eddy Simulation and Acoustic Analogies
Sammanfattning : The thesis presents a numerical method developed by the author and its applications for computing the generated sound by an unsteady flow field and its propagation. The full equations of motion for compressible and unsteady flows describe both flow field and sound generation and propagation. LÄS MER
2. Structure-Acoustic Analysis; Methods, implementations and applications
Sammanfattning : This thesis investigates structure-acoustic problems, which involve a flexible structure coupled to an enclosed acoustic fluid. In the literature, this type of problem is usually referred to as vibroacoustic problems or structure-acoustic problems with fluid interaction. The thesis consists of two parts. LÄS MER
3. Drum sound from floor coverings - objective and subjective assessment
Sammanfattning : Drum sound is the sound produced when an object, such as a foot, hits the flooring in the room in which the receiving ear is located. Drum sound has attracted interest in recent years, particularly due to an increased use of thin floating floor constructions, such as veneer or laminate flooring, which can produce loud and sharp walking sound. LÄS MER
4. On the Load Distribution and Design of a Chain Drive
Sammanfattning : Three methods are presented to calculate the load distribution in a chain drive containing two sprockets and one chain. The rollers, which are in contact with the sprockets, can move along the tooth flanks and their positions are given by force equilibrium. LÄS MER
5. Stability of statically and periodically loaded structures
Sammanfattning : In this thesis different kinds of stability phenomena are analysed. Firstly the quasi-static behaviour of an elastic structure is studied for increasing loading. LÄS MER