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电磁轴承系统中最重要的两个机电结构参数是定转子间气隙和定子静态偏置磁通密度，影响着支承刚度和承载力的基本特征；轴承的支承刚度大小和承载力的线性范围决定了轴承的基本性能。在Ｍａｘｗｅｌｌ电磁力公式基础上，研究了这两个机电结构参数与轴承的基本性能的关系，得到了电磁力与位移之间线性与非线性关系的解析界限，并推导了在线性控制系统作用下，相对不同电磁轴承系统结构参数的最优线性范围和对应的最优刚度。
The two most important electromechanical structural parameters in the electromagnetic bearing system are the air gap between stator and stator and the static bias magnetic flux density of the stator, which affects the basic characteristics of the bearing stiffness and bearing capacity. The linear range of bearing stiffness and bearing capacity determines The basic performance of the bearings. On the basis of Maxwell electromagnetic force formula, the relationship between the two electromechanical structure parameters and the basic performance of the bearing is studied, and the analytical limits of the linearity and nonlinearity between electromagnetic force and displacement are obtained. Under the action of the linear control system, , Relative to different electromagnetic bearing system structural parameters of the optimal linear range and the corresponding optimal stiffness.