scholarly journals ABC of Neo-Newtonian dynamics of static magnetic field

2018 ◽  
Author(s):  
Umer Farooq

I have analyzed the magnetic force between an electromagnet and a permanent magnet in accordance with Newton’s first law of motion. The analysis concluded that magnetic force of permanent magnet must work or this force must be balanced (canceled) by an opposing force. To check the results of the analysis, I have conducted thousands of experiments on the magnetic force. Reasonable amount of opposing force appeared during the experiments. Appearance of the opposing force has validated the results of the analysis.Moreover, I have successfully reduced the production of the opposing force. Resultant force exceeded to a great extent ultimately. I have made 4 working proofs of the concept. The working proofs of the concept convert the recovered resultant force into additional output power. According to Newton’s first law of motion, the emerging of the additional output power is not only absolutely natural but also is mandatory.

2012 ◽  
Vol 472-475 ◽  
pp. 912-916
Author(s):  
Ding Guo Huang ◽  
Song Liu ◽  
Hong Guang Jiao ◽  
Fei Yue Wang

This new dry magnetic separator has a special structure. It has many magnetic roll which are staggered like a stairsteps. It can finish the task of separating different minerals with only this one machine. And also it can make the different magnetic material which are in the same mineral separate at the same time. The permanent magnet system is made of large fan-shaped magnet. The magnet pole N and S are staggered and has perfect performance of magnetic separation. And the magnetic force is made full use by going-up dynamic separation. And also it gives an analysis of stress in the magnetic field. It also shows that its separation idex is better, the economic benefits are obvious, and it has broader prospects of popularization and application.


2012 ◽  
Vol 271-272 ◽  
pp. 1636-1640
Author(s):  
Xiao Yan Tang ◽  
Zhong Yun ◽  
Chuang Xiang

The calculation model of the single turn rectangle current carrying coil was established. The theoretic formula for calculating the magnetic field intensity of any point in space was derived. For a pair of radial magnetizing permanent magnets, the formula for calculating the magnetic force of permanent magnet in the magnetic field was deduced based on the equivalent current theory of permanent magnet. According to the formula, the influencing factors and the changing rules for the magnetic force of permanent magnet can be seen directly: the current, the coil turns are proportional to its magnetic force, while the coupling distance is inversely proportional to its magnetic force.


2014 ◽  
Vol 703 ◽  
pp. 114-118
Author(s):  
Guang Cai Zhang ◽  
Hong Fu Ai ◽  
Ya Jie Xu ◽  
Qiao Yan Chen ◽  
Xiao Dong Yang

This paper introduces the design of permanent magnet that can been used to small nuclear magnetic resonance (NMR) system, and its static magnetic field simulation analysis uses Ansoft's Maxwell software. According to the theory of magnetic circuit design and the performance requirements of magnetic field, An H-style permanent magnetic actuator has been designed, and it can generate uniform magnetic field larger than 0.4 T in the interested region of this actuator. The static magnetic field simulation analysis of this permanent magnetic actuator has done by Ansoft's Maxwell 3D software, and the experimental results show that the design of permanent magnet can meet the requirements.


2015 ◽  
Vol 137 (3) ◽  
Author(s):  
Shiyu Wang ◽  
Bang Xie ◽  
Chenxin Wang ◽  
Jie Xiu

Permanent magnet (PM) induced vibration is one of the major concerns for PM motors. This work aims at the identification and suppression of the vibration source from magnetic field distortions caused by magnet/slot combination, uneven-magnetization, and magnet shifting. Modulation method is employed to predict the relationships between parameters and unbalanced magnetic force (UMF) and cogging torque (CT). Motivated by the magnetic field periodicity and structure especially air-gap symmetry, a new concept of equivalent magnet (EM) wherein one or more real magnets are defined as an imaginary one is introduced to help predict the unexpected force harmonics normally lower than magnet number, and rotation-frequency is used to present unified interpretation on magnetic force regarding the three distortions. The results imply that the relationships are determined by magnet/EM/slot combination including their greatest common divisor (GCD). Compared with CT, the UMF is more sensitive to the uneven-magnetization and magnet shifting. Like ideal motors, if the GCD is greater than unity, the UMF is eliminated, but the CT is not simply via altering the combination. The results also show that magnetic forces for the same EM/slot combinations share similar behaviors regardless of specific magnetic field details. The results can be utilized to suppress undesirable force, or inspect magnetization and installation status by monitoring force frequency and its amplitude, or gain vibration suppression by magnet's selective assembly. The modulation method, EM concept, and main findings are successfully verified by the finite element method (FEM) and comparison with the existing results in the literature. Main contribution of this work is the unified explanation on the relationships between the three distortions and unique force behaviors, especially the prediction on those unexpected harmonic forces.


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