采用有限元法计算分析了定子偏心与转子偏心对无刷直流电动机的气隙磁场、定位力矩及单向磁拉力的影响。
The effects of stator and rotor eccentricity on the magnetic field distributions, cogging torque and unbalanced force were calculated in this paper by using finite element method (FEM).
主要介绍无粘结预应力钢绞线的原材质量控制、配料、张拉力值、伸长值的计算及施工工艺。
The paper mainly introduces raw material quality control, calculation of burden, stretch-draw force and elongation value, construction technology of non-bonding prestressed steel strand.
螺旋桨模型简化为一个激励盘，即一个无厚度可穿透的圆盘，以给定的圆盘拉力载荷，即压强差来模拟螺旋桨滑流的效果。
The N-S equations with adoption of an actuator disk model are used to simulate the effect of turbo-propeller slipstream on high-lift systems.
无换向架链条抽油机的链条承受的总拉力为悬点载荷与平衡重的差值加连杆对链条的水平分力在链条上形成的附加拉力之和，受力状况优于普通链条抽油机，且能得到控制。
The force conditions of the chain on a chain drive pumping unit without reverse rack are much more favorable than that on conventional chain drive pumping units, and can be well controlled.
产品色泽均匀，无杂色，良好的拉力强度和伸长率；
Color and Iustre are equality, no variedness, good sile strength, and elongation;
产品色泽均匀，无杂色，良好的拉力强度和伸长率；
Color and Iustre are equality, no variedness, good sile strength, and elongation;
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