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The artificial potential field method is used in mobile robot path planning extensively because of its simpleness, high efficiency and smooth path, but it also has its disadvantages. To overcome the shortcomings of the traditional artificial potential field method in mobile robot path planning, this paper analyzes the reasons that lead to the failure in path planning and puts forward an improved method,...
The purpose of this paper is to present the derivation of a 3-D analytical solution of a null-flux electrodynamic suspension device for a conductive plate. The device consists of a linear Halbach magnet array placed above and below a conductive plate. The eddy current forces are derived using the second-order vector potential (SOVP). When the conductive plate is assumed to be large relative to the...
Conventional linear machine consists of only one stator and one mover. In this paper, a permanent magnet (PM) tubular linear motor with multiple movers is proposed to improve the efficiency of stator field. The outer and inner movers can produce independent motions by interacting with the PM stator. It can be used in large systems requiring multiple driven elements and space saving. The employment...
Linear oscillating motor attracts much attention in short-stroke reciprocate motion applications, due to direct and efficient linear movement output. However, the requirement of high output power in linear motor always leads to rapid increase of outer diameter, which is not only bulky in structure but also decreases power density. In order to achieve efficient high power linear motor design, E-Type...
A novel tubular flux-switching permanent magnet (PM) linear motor is proposed in this paper. It takes the hybrid operating principle of conventional flux switching machines and excitation of permanent magnet poles. It helps to increase the magnetic flux density in air gaps, and improve the force output. The complementary phase is employed to reduce force ripples. Modular design methodology is utilized...
This paper presents a tubular linear flux-switching permanent magnet (TLFSPM) motor. It has an inner mover which only consists of iron core, and stator which contains the magnets and armature windings. The objective of this paper is to propose the TLFSPM motor design and mathematical model. This motor has a smaller cogging force and force ripple, in addition, it overcome unbalanced magnetic circuit...
With the rapid development of low power consumption electronics, wireless sensor networks (WSN) are highly investigated and used to improve our life quality. Using piezoelectric materials to transfer the mechanical energy into electrical energy for batteries of WSN in order to extend the life time is the focus in many researches in the recent years. It is important and efficient to improve the energy...
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