Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Flux-switching permanent magnet machines (FSPMMs) has been investigated for many application including hybrid electric vehicles due to its special configuration and high power density. This paper aims to present a robust optimization method for this kind of machine to improve its manufacturing quality in industry. The proposed robust method is based on design for six-sigma technique. Different topology...
With the growing of the applications of surface acoustic wave (SAW) devices, the requirement for the accuracy of the operating frequency of the SAW devices is constantly strengthened. The impact of thermal strain on the characteristics of SAW devices cannot be ignored, which induced in their packaging process. In this paper, by using the finite element method (FEM) software, the thermal strain induced...
With the growing of the applications of surface acoustic wave (SAW) devices, the requirement for the accuracy of the operating frequency of the SAW devices is constantly strengthened. The impact of thermal strain on the characteristics of SAW devices cannot be ignored, which induced in their packaging process. In this paper, by using the finite element method (FEM) software, the thermal strain induced...
The impedance is often used as a measurement to represent the dynamics of an intelligent material system. This study attempts to combine the theoretical analysis and the finite element method to establish relationships between input efforts and output effect at the boundaries of a piezoelectric membrane. At first, vibration analysis of a piezoelectric membrane under harmonic excitation is conducted,...
Piezoelectric structures achieve structural control by using electromechanical coupling characteristics, therefore, their design and analysis involve interaction between mechanical system and circuit system inevitably. Based on the analogy between governing equations of mechanical system and circuit system, equivalent relation is established in the paper. Using the analogy relations, the piezoelectric...
In order to comprehensively understand magnetic field distribution in soft magnetic composite (SMC) materials which apply to three-dimensional (3-D) flux electrical machine design, 3-D reluctivity tensor should be taken into account. A 3-D magnetic properties testing system fitting for cubic SMC sample has been constructed and calibrated by means of finite element method (FEM). According to the experimental...
This paper investigates the nonlinear model of the permanent magnet synchronous machines (PMSMs). In order to incorporate the structural and saturation saliencies, two parameters are defined to indicate the saturation ratios. An analytical model is derived and the inductance matrix is expressed in both stationary and rotating reference frames, respectively. An incremental inductance measure system...
In this paper a comprehensive magnetic model is developed for a surface mounted permanent magnet synchronous machine (SPMSM) considering both the structural and the saturation saliencies to enable the numerical simulation of new rotor position detection algorithms. With an identifiable parameter matrix, a numerical nonlinear inductance model is proposed, in which the rotor position and the stator...
Soft magnetic composite (SMC) materials are widely applied in three-dimensional (3-D) magnetic flux electrical machines. Conventional methods for analyzing the magnetic properties of SMC materials based on alternating excitation are not comprehensive due to the rotational magnetic properties in the rotating electrical machines. In order to completely understand and model the magnetization process...
The structural health monitoring of large span or infinite structures such as pipe lines and rails is always an interesting topic for engineers in the industry fields. The vibration analysis of infinite beams sensoring and actuated by piezoelectric elements is set as the basic for these important scientific and technical problem. Introducing a spring-damp element to semi-infinite long beam and considering...
Single-sided linear induction motors (SLIMs) have been widely applied in transportation recently. For its cut-open magnet circuit along moving direction and different width between primary and secondary, it has longitudinal end effect and transversal edge effect, which bring some efflucence to its mutual inductance and secondary resistance. Furthermore, SLIM has normal force for its unsymmetrical...
Single-sided linear induction motor (SLIM) is widely used in transportation and other field in need of linear drive for their simple, firm structure and linear motion feature without the translation mechanism. But end effect in SLIM deteriorate the performance for the discontinuous magnetic circuit. This paper analyzes 2-D transient electromagnetic field of SLIM by finite element method (FEM). The...
Single-sided linear induction motor (SLIM) has many advantages, such as simple structure, easy maintenance, less environmental pollution and direct drive without the translation of mechanisms etc. However, longitudinal end effect deteriorates the performance because of the discontinuous magnetic circuit in SLIM. In this paper, the 2-D transient electromagnetic field of SLIM is computed using finite...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.