And flux distributions and radial force of an induction type bearingless motor is analyzed employing the finite element method . relationships between the radial force and radial force winding currents are influenced by magnetic saturation . it was shown that the generated radial force reaches its maximum value due to magnetic saturation 首次运用有限元方法对该电机进行了深入的研究，充分展现了无轴承异步电机特有的气隙磁场分布、验证了稳定磁悬浮力产生的条件、指出了磁饱和对磁悬浮力的影响、利用有限元方法修正了磁悬浮力数学模型。
Ebu - arrehenius and second - moment turbulent combustion model are used to determine the reaction rate . to consider the influence of heat radiation on the gas temperature and wall temperature , the six flux model is applied to predictions of heat flux distributions . the discretization of governing equations on a non - staggered grid system is performed by hybrid scheme over the control volume , and discretization equations are solved with simple algorithm 利用椭圆型微分方程法和区域法生成三维贴体网格,文中数学模型有紊流模型、紊流燃烧模型和辐射模型,采用k -双方程模型来预估紊流特性, ebu - arrehenius和二阶矩紊流燃烧模型来估算化学反应速率,六通量辐射模型预估辐射通量,以便考虑热辐射对壁温和气流温度的影响。
In this paper , the method of design for variable speed permanent magnet synchronous motors ( pmsm ) , which are applied to the traction of elevators and driven by power converters , is discussed . by request of elevators , the conflguration , airgap flux distribution and parameters of motors are researched . an effective method of design is implemented , according to the result of research <中文摘要> =本文讨论的是用于电梯驱动的变频调速永磁同步电动机的设计。根据电梯驱动和变频调速的要求，本文对电机的定转子结构、气隙磁场的分布、各参数的合理选择等多方面的情况进行了研究，从而确定了有效的实施方案。
