Sökning: "Time domain"
Visar resultat 6 - 10 av 1322 avhandlingar innehållade orden Time domain.
6. Efficient time-domain modelling suitable for optimising thermoacoustic devices
Sammanfattning : Thermoacoustic heat pumps use acoustic work to transfer heat from cold to hot temperatures. Such devices benefit from being environmentally friendly, robust and simple. However, in practice these devices have too low efficiency and power compared to their conventional counterparts. LÄS MER
7. Time-domain modelling of high-frequency wheel/rail interaction
Sammanfattning : The interaction between wheel and rail is the predominant source of noise emission from railway operations in a wide range of conventional speeds. On the one hand, this wheel/rail noise concerns rolling noise and impact noise caused by the vertical interaction excited by roughness and discrete irregularities of the wheel/rail running surfaces, respectively. LÄS MER
8. Time-Domain Methods for the Maxwell Equations
Sammanfattning : .... LÄS MER
9. Engineering model for curve squeal formulated in the time domain
Sammanfattning : Curve squeal is a type of railway noise that may arise when a railway vehicle negotiates a relatively tight curve. Squeal is common in curves of a radius lower than 200 meters. A single frequency dominates the radiated sound, which makes squeal a very tonal noise. LÄS MER
10. Time Domain Methods for Load Identification of Linear and Nonlinear Systems
Sammanfattning : The automotive industry faces an increasing demand for virtual prototyping to simulate the operation conditions of vehicles and subsystems. Each component, as well as the complete vehicle, must meet the desired design requirements in a time- and cost-efficient development process. LÄS MER