The experimental problem about magnetic braking on an inclined plane in the 6th Asia Physics Olympiad is introduced. 介绍了第六届亚洲物理奥林匹克竞赛实验试题中磁刹车效应实验。
The Finite Element Method Calculation of Magnetic Flux Distribution of Track Eddy Current Braking Device 线性涡流制动装置磁场分布的有限元计算
The number of magnetic poles N, inner radius r_1 and outer radius r_2 are chosen as controllable factors in braking torque computing model. Braking torque fluctuation is chosen for the performance characteristic values. 算例选择制动力矩计算模型中的磁极数N、内半径r1及外半径r2为可控因素,制动力矩波动率作为质量特性输出值。
By using simple experimental apparatus, this problem investigates the nature of the magnetic braking force quantitatively. 该题利用简单的实验装置定量研究磁刹车力与相关参量的关系。
Magnetic track braking& its work principle 磁轨制动及其作用原理
The distribution of magnetic flux of track eddy current braking device is calculated by using vector potential method. 采用矢量位A法对线性涡流制动装置的磁场分布进行了有限元理论计算。
For th Lorentz force, the effects of static magnetic field on electromagnetic braking, suppression of wave motions, magnetic vibration and electromagnetic acoustic waves are mainly introduced; 对静磁场下的洛仑兹力,主要介绍了流体流动、波动和对流控制、电磁振动及电磁超声波等方面的研究现状;