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High speed machines have received much attention recently. However, unbalanced magnetic force (UMF) may occur in some slot/pole number combinations even there is no rotor eccentricity, which can cause high vibration and noise. In order to reduce the rated on-load UMF, three 3-slot/2-pole permanent magnet (PM) machines with different auxiliary slots are investigated and compared in this paper. In the...
According to the effect analysis of reliability on life cycle cost (LCC), the model of reliability's effect on equipment's LCC is established. This model is used for LCC optimization and minimizes LCC, under the condition that reliability, maintainability and supportability are all available. With background of the LCC management theory based on reliability and maintainability theory, in combination...
The mobile broadband revolution with its rapidly increasing traffic volumes has resulted in a number of challenges, including ubiquitous network coverage, high bandwidth, and reliable services for reasonable price, etc‥ To address these challenges, the Evolved Packet System is proposed as the evolution of the packet core network. While resource management and load balancing issue in Evolved Packet...
The deformation of the workpiece-fixture system has essential influence on the locating accuracy of the workpiece. To minimize the overall deformation of the workpiece-fixture system is an important issue in fixture design. This paper focuses on the fixture layout design with compliant model. A topology optimization approach is presented in order to reduce the complexity introduced by the high computational...
Ocean thermal energy is a type of renewable energy. The phase change process of the thermal glider propelled by ocean thermal energy was numerically and experimentally investigated in this paper. The gliding process was analyzed and optimized while the glider was operating in the ocean thermocline near the equator. The results showed that the time of a cycle decreases by 30% and the gliding depth...
Through the research to the 3D-parking scheduling, bring forward the use of GAAA algorithm to search for the shortest path with shortest time in parking scheduling firstly, the GAAAA algorithm inosculate the Genetic Algorithm (GA) and Ant Algorithm (AA), which make up the shortcoming of GA and AA very well. Furthermore, through the simulation analysis proved that GAAA have better performance than...
Hardware Software partitioning is one of the most significant part of Hardware Software co-design of embedded systems, which is directly related to performance and cost. A lot of works have been done such as the simulated annealing algorithm, greedy algorithm and evaluation algorithm. In this paper, a new hardware software partitioning method based on Immune Algorithm was introduced. The model of...
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