Sökning: "mechanical impedance"
Visar resultat 1 - 5 av 97 avhandlingar innehållade orden mechanical impedance.
1. Sustainable Lubrication and Tribotronics enabled by Ionic Materials
Sammanfattning : Developments in machine design play a crucial role in the global endeavor towards sustainability. The potential for energy conservation and emission reduction has pushed lubrication research to the forefront, with the lubricant considered to be a vital machine component. LÄS MER
2. Multidirectional Mobilities - Advanced Measurement Techniques and Applications
Sammanfattning : Today high noise-and-vibration comfort has become a quality sign of products in sectors such as the automotive industry, aircraft, components, households and manufacturing. Consequently, already in the design phase of products, tools are required to predict the final vibration and noise levels. LÄS MER
3. Prediction and Optimisation of Traffic Noise. A Study on Noise Barriers and Shielded Areas
Sammanfattning : The main contribution of noise levels in cities is today road traffic. The strongest source for all road vehicles is most often the tyre-road contact. This source position close to the ground is fortunate with respect to secondary noise abatement measures, such as absorbing road surfaces or noise barriers. LÄS MER
4. Tyre Noise over Impedance Surfaces - Efficient Application of the Equivalent Sources Method
Sammanfattning : Reduction of the transportation noise nuisance has become an important challenge in today's societies. As a consequence of engine noise reduction, tyre / road contact noise is now the main source of traffic noise under normal driving conditions. LÄS MER
5. An impedance approach to passive-active vibration control
Sammanfattning : The complementary advantages of active and passive vibration control have motivated research concerning hybrid configurations. Previous studies have mainly focused on active constrained layers (ACL). However, investigations pointing towards suboptimal performance of ACL have made it interesting to investigate other solutions. LÄS MER