Sökning: "linear machines"
Visar resultat 1 - 5 av 78 avhandlingar innehållade orden linear machines.
1. Ghosts and machines : regularized variational methods for interactive simulations of multibodies with dry frictional contacts
Sammanfattning : A time-discrete formulation of the variational principle of mechanics is used to provide a consistent theoretical framework for the construction and analysis of low order integration methods. These are applied to mechanical systems subject to mixed constraints and dry frictional contacts and impacts---machines. LÄS MER
2. A Low-Leakage Linear Transverse-Flux Machine for a Free-Piston Generator
Sammanfattning : The presented work is about a new low-leakage lineartransverse-flux electrical machine.The machine is dimensionedfor a free-piston generator. The intended application is inseries-hybrid vehicles. The free-piston generator is anintegration of a free-piston combustion engine with a linearelectrical machine. LÄS MER
3. In the Air Gap of Linear Generators for Wave Power
Sammanfattning : Wave power conversion is one type of renewable electricity generation. Within wave power, there are many different concepts, whereof some utilizes linear generators for converting the energy in the ocean waves into electricity. LÄS MER
4. On the System Optimization of Magnetic Circuit with Alternative Permanent Magnets and its Demagnetization
Sammanfattning : Permanent magnet (PM) machines are often associated with the usage of rare earth magnets, due to their high energy density. One such rare earth magnet is the neodymium-iron-boron (NdFeB), which is mainly produced in China. Due to the global scarcity of the rare earth magnets, much interest is put into utilizing other permanent magnet materials. LÄS MER
5. Efficient Use of Exponential Size Linear Programs
Sammanfattning : In the past decades, linear programming (LP) has been successfully used to develop approximation algorithms for various optimization problems. In particular, the so-called assignment LP has lead to substantial progress for various allocation problems, including scheduling unrelated parallel machines. LÄS MER