scholarly journals Quantitative Comparison of Linear Magnetic Gear with Different Types of PMs

2013 ◽  
Vol 416-417 ◽  
pp. 385-389 ◽  
Author(s):  
Mu Chen ◽  
K.T. Chau ◽  
Wen Long Li ◽  
Chun Hua Liu

This paper presents a quantitative comparison between the non-rare-earth permanent magnet (PM) and rare-earth PM based linear magnetic gear. By using the finite element analysis, three linear magnetic gears adopting either the non-rare-earth PM or rare-earth PM are analyzed and discussed. Hence, the cost-effectiveness comparison among different types of PMs is conducted. The results indicate that the non-rare-earth PM is preferred to the rare-earth PM for application to linear magnetic gears when cost-effectiveness is emphasized.

2014 ◽  
Vol 945-949 ◽  
pp. 1135-1138
Author(s):  
Tao Liang ◽  
Chun Ling Meng ◽  
Yang Li ◽  
Xiu Hua Zhao

The finite element analysis of large air cooling tower was carried out using ABAQUS. On the basis of strength above,8 types of the axial force are analyzed and summarized, find valuable rules, and put forward the further optimization design. So that it can satisfy the strength and stability of air cooling tower, the structure is more reasonable, reduce weight, reduce the cost.


Author(s):  
Eyassu Woldesenbet ◽  
Haftay Hailu

The need for the rehabilitation of bridges and structures is becoming more apparent as the number of deficient civil structure grows and the cost of replacement is becoming prohibitive. These leads to the search of alternative methods, such as rehabilitation, to put the deteriorated structures back to normal operation with the least possible cost. One such method is the use of composite plates adhesively bonded to concrete as reinforcement and to prevent the propagation of crack within the concrete structure. In this study the load transfer and the resulting stress distribution in the composite-concrete adhesion system is investigated using the finite element method. The effects of the different bond parameters are studied using the finite element. In addition, results of the finite element analysis are proved to be in agreement with the analytical solution of shear stress distribution in the adhesion layer that was developed in previous studies by the authors.


2015 ◽  
Vol 734 ◽  
pp. 816-821
Author(s):  
Chang Qi Liu ◽  
Yu Fa Xu ◽  
Quan Feng Li ◽  
Jin Hua Bian

In order to increase the cost and material conditions as little as possible for improving the efficiency of the motor, and reduce the losses of the motor. This paper have YE3-132S-6X3 super-efficient motor loss analysis first. According to the characteristics of its loss analysis, this paper change the motor slot coordination, and through the finite element analysis, further has carried on the design of slot type and winding. Finally, in order to further reduce iron loss, this paper uses the new type of silicon steel, and then by comparing with the finite element analysis and experimental tests found YE3-132S-6X3 motor efficiency have achieved the purpose of the ultra-super efficient, and other performance parameters can also meet the requirements.


2019 ◽  
Author(s):  
Masoud Davari ◽  
Mahyar Ramezani ◽  
Aliakbar Hayatdavoodi ◽  
Mohammad Nazari

Beam-to-column connections affect the rigidity and strength of the overall precast concrete structures. Even though many experimental researches have been carried out on beam-to-column connections, the behavior and failure mode of the connection in precast concrete is often difficult to assess through experimental program. The finite element analysis, on the other hand, can be an option to properly evaluate the condition of the connections. Nevertheless, the finite element analysis on the beam-to-column connections is quite limited. Thus, there is a need to study and explore the behavior of the connection system based on the finite element data. In this research, the finite element analysis was performed to study the performance of different types of beam-to-column connections in precast concrete frames. A total of four specimens were modeled and analyzed to study the connection behavior involving load-displacement relationship under static incremental load. Different connection details were considered and the behavior of various beam-to-column connections were investigated.


2021 ◽  
Vol 1199 (1) ◽  
pp. 012008
Author(s):  
M Handrik ◽  
J Majko ◽  
M Vaško ◽  
F Dorčiak ◽  
P Kopas

Abstract The paper deals with the solution accuracy of the stress in the structure using the finite element analysis. In general, hexahedron elements are more accurate than tetrahedron elements and quadratic elements are more accurate than linear elements. The primary aim of the article is to perform comparison of the obtained results and calculation parameters (such as time and so on) for different types of elements and the elements size. Usage less accurate elements like linear tetrahedron under certain circumstances could lead to sufficiently accurate result of stress analysis.


2021 ◽  
Vol 342 ◽  
pp. 06003
Author(s):  
Sándor Szirbik ◽  
Zoltán Virág

This paper is devoted to the modal analysis and buckling of a stiffened plate with simple supported conditions within the framework of shell theory. The main objective of the finite element analysis is to investigate the natural frequencies of this stiffened structure subjected to uniaxial compression on two opposite edges of the plate. In this study, the numerical analysis is performed for such a design of the stiffed plate which has already been optimized for uniaxial compression, some design variables and the cost of welding, and the objective function to be minimized is defined as the material cost. The various Young’s modulus of the base plate and the stiffeners are given thus assuming that the plate parts (the base plate and ribs) were made of different steel materials.


2010 ◽  
Vol 97-101 ◽  
pp. 4046-4049
Author(s):  
Wen Lei Sun ◽  
Yi Ping Yuan ◽  
Yi Fang Zhong ◽  
Li He ◽  
Jao Guo

The petroleum aiguille, whose capabilities directly affect the quality, speed and cost of artesian well, is the primary rock breaker in the petroleum and natural gas industry. This paper has researched the reverse design of imported and high-powered petroleum aiguille, including the numerical reverse design, the revivification of dimension, the finite element analysis of numerical model, the simulation of Numerical Control(NC)machining and so on. Through analyzing and redesigning the complicated parts of petroleum aiguille and numerical making server, the manufacturer could absorb quickly and develop the overseas advanced products, step up the development-level of petroleum exploitation facilities, and reduce the cost of petroleum exploitation.


1985 ◽  
Vol 13 (3) ◽  
pp. 127-146 ◽  
Author(s):  
R. Prabhakaran

Abstract The finite element method, which is a numerical discretization technique for obtaining approximate solutions to complex physical problems, is accepted in many industries as the primary tool for structural analysis. Computer graphics is an essential ingredient of the finite element analysis process. The use of interactive graphics techniques for analysis of tires is discussed in this presentation. The features and capabilities of the program used for pre- and post-processing for finite element analysis at GenCorp are included.


2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.


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