magnetic permeability

The nonlinear solution is applied to conical helical spring. In chapter three, based on Rayleigh identity, a formula of the effective magnetic permeability of MR fluids is derived.

第三章中，我们基于Rayleigh方程，运用迭代方法推导出磁流变液体系有效磁导率的一般解析公式。

On the basis of simulation analysis of the finite element, a rotor abrader having strong magnetic permeability and grinding performance has been designed in this paper.

本文在有限元仿真分析的基础上，设计了一套既具有较大导磁性又具有很强磨削能力的转子磨具。

The appropriate coil structure parameters were presented, and an optimized design scheme was proposed in which pure iron with high magnetic permeability was attached to both ends of the giant magnetostrictive material ( GMM) to reduce loss.

给出了合理的线圈结构参数，提出了在超磁致伸缩材料（GMM）棒两端安装高磁导率的软磁体和减少GMM棒涡流损耗的设计方案，并忽略了气隙的影响。

In virtue of abraser and vibrating sample magnetometer, the effect of rare earth element cerium on wear volume, magnetic intensity, coercitive force and magnetic permeability of electroless Co-Ni-B alloy coating are studied.

借助磨损试验机和振动样品磁强计等研究了稀土金属Ce对化学镀Co-Ni-B合金镀层磨损体积、磁化强度、矫顽力和磁导率的影响。