The drivability study of piling requires modeling of the hammer impact to calculate the input force wave at the pile head.
桩的可打性研究需要模拟桩的锤击，计算出桩顶的应力波。
Rotor eccentricity in asynchronous motor always arose a series of low-order radial force wave and increase noise radiation.
异步电动机转子偏心会引起一系列低次数径向力波，并使噪声辐射增加。
Through the comparison of the different rotor slots number, the influence of the radial force wave of different rotor slots number is studied.
通过对几种不同槽配合的比较，研究不同转子槽数对径向力波的影响。
Then the selections of phase number, winding connection, pole number and number of branches in parallel are optimized according to the SRM's symmetry and order of force wave.
接着从对称性、力波阶数等角度研究了SR 电机相数及绕组连接方式、极数、并联支路数的选择问题。
Then the selections of phase number, winding connection, pole number and number of branches in parallel are optimized according to the SRM's symmetry and order of force wave.
接着从对称性、力波阶数等角度研究了SR 电机相数及绕组连接方式、极数、并联支路数的选择问题。
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