随着悬浮线圈内径增加,悬浮力呈线性增加。
The levitating force increases linearly with the increase of the inner diameter of levitation coil.
受到的悬浮力大小由温度和磁场梯度共同决定;
The value of the levitation force is determined by the temperature and the gradient of magnetic field.
用于乳制品,提高悬浮力和粘度,改进胶凝聚效果。
For dairy products, and improve the viscosity of the suspension, the effect of improving the plastic pool.
在不同的冷却间隙下对悬浮力和导向力进行了测试。
Levitation force and guidance force are measured in different cooling gaps.
对直线电动机的推动力和悬浮力也做了具体分析和计算。
Furthermore, the driving force and magnetic levitation force of linear motor are figured out.
分别用二维场—路耦合法和解析法建立了磁悬浮力模型。
A model of magnetic suspension forces is built by using 2d field-circuit coupling and analytical methods.
根据分析,认为解决电磁铁温升是提高悬浮力的关键因素。
According to analysis, it shows that temperature rising is the linchpin in enhancing the levitation force.
从运行原理出发,建立了感应型无轴承电机磁悬浮力的解析模型。
Based on its operation principle, a relatively accurate analytical expression of the magnetic levitation force for an induction-tyle bearing-less motor is proposed in this paper.
改进算法首先对给定的悬浮力和转矩是否能够同时满足进行了判断。
Firstly, the improved method judges whether the needed radial force and the torque can be simultaneously satisfied.
若使合力总是指向重力的反方向,则这个合力是一种无支撑的悬浮力。
If the direction is opposite with gravity, the resultant force is a levitation force.
解析了无轴承电机的通用电感模型,导出了通用同步速旋转磁悬浮力模型。
Based on inductance models, the universal analytical models on synchronously revolving magnetic suspension force were derived.
为实现永磁型无轴承电机的稳定悬浮运行,须对转矩和悬浮力进行实时控制。
To realize the suspension operation for a Permanent magnet type Bearingless Motor (PMBLM) in the dynamic process, the torque and magnetic levitation force should be real-time controlled.
在大电流饱和状态下,该模型有效地描述了电机产生的径向悬浮力和电磁转矩。
The model can depict radial force and electromagnetic torque generated in the motor more accurately in the region of magnetic saturation.
文中对磁悬浮平台进给机构产生的悬浮力和直线电机产生的推力进行了分析计算。
The magnetic suspension force and the thrusting force produced by the linear motor were analyzed and calculated.
从中可以看出绕组极数选取方案决定悬浮力绕组的电能传递方向及它的励磁方式。
From the relations, it is concluded that pole-number selection of windings not only determines direction of electrical energy transfer for levitation force winding, but also does its excitation modes.
采用该文提出的被动式磁力轴承,电机转子可实现磁悬浮而不需要进行悬浮力控制。
The magnetic suspension of the rotor is realized by the use of the proposed passive magnetic bearings that does not need any active control.
根据无轴承开关磁阻电机的悬浮原理和数学模型,设计平均悬浮力和平均转矩的控制策略。
A control strategy of average levitated force and average torque is designed based on principles of radial force generation and mathematical models.
通过对转矩绕组和悬浮力绕组的解耦控制,使电机的转子同时具有产生转矩和自悬浮的功能。
Through decoupling control of the torque windings and suspending force windings, the rotor of motor simultaneously have functions of producing torque and self-suspension.
研究了悬浮于永磁圈之上的熔融织构(MTG)高温超导球所受到的悬浮力的静态和动态性质。
The static and dynamic property of magnetic levitation force of melt texture growth (MTG) high temperature superconducting ball levitated above a permanent magnetic ring is investigated.
提出一种采用逆变器并联电容器的新方法,该方法通过PWM逆变器控制悬浮力绕组中励磁电流。
A novel method of a capacitor in parallel with inverter is presented, in which current in levitation force winding can be controlled by PWM technique.
基于的原则,对无轴承永磁同步电机径向悬浮力的数学模型推导出无轴承永磁同步电机径向力的。
Based on the principle of producing radial suspension forces on BPMSM, the mathematics models of radial forces on BPMSM is deduced.
研究结果表明,对于任何一种应用,降低块材的温度,都能起到抑制悬浮力衰减和减小温升的作用。
The results showed that, for any application, lowering the operating temperature of the HTSC can suppress not only the LF decay but also the temperature raise during the longitudinal movement.
其中,运动外磁场下块材悬浮力衰减的作用机理被归结为能量损耗带来的热量导致块材的性能参数下降。
This decay mechanism of the levitation force was attributed to the declined performance parameter of the bulk which was caused by the heat resulting from the energy loss.
此外,在准静态测试条件下,实验研究了导轨表面磁场不均匀性对高温超导块材的悬浮力性能的影响情况。
Moreover, we investigated the influence of the magnetic inhomogeneity of the PMG on levitation force of the bulk superconductor in a quasi-static state.
本文对一辆高温超导磁悬浮列车模型悬浮系统的数学模型进行简化,得出了悬浮力的近似计算解析表达式。
The paper presents an analytical formula of Maglev force with the maglev system of a HTSC maglev vehicle model being simplified.
完善的功能包含以下几个方面:(1)在测试悬浮力和导向力时,可以根据需要在大循环中进行小循环测试。
Perfected function include such aspects: (1) it can measure with little loop in big loop measurement when measure levitation force or guidance force.
为了实现对该电机转矩和悬浮力的单独控制,根据转矩和悬浮力公式推导出了对电机上、下定子磁场的控制方法。
In order to control torque and levitation force, the control method is obtained by formula of torque and levitation.
通过研究列车所在位置处的定子与转子总的磁导率函数分布和励磁曲线分布,得出列车运行过程中所有悬浮力的大小。
All levitation forces of the running train were obtained according to the distributions of overall magnetic conductance function and current charge curve for stator and rotor.
在介绍有限元法理论的基础上,应用ANSYS有限元分析软件,对电机进行2D电磁场仿真分析,验证了径向悬浮力产生的原理;
Based on the principle of the Finite Element, 2D magnetic fields are analyzed to validate the principle of radial suspension forces generated by the finite element ANSYS software.
对动态电荷群的研究得知能够实现这种悬浮力。 较简单的情形是只要两个动态点电荷满足三个条件,它们各自受到的力就会指向同一方向,力的大小按正弦规律变化,合力不为零且稳定不变。
A simple type is that the forces on two dynamic point charges have the same direction, the scale of the forces are changeable with sine regularity and its' resultant force is stable and nonzero.
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