In the process of torsional vibration analysis for turbogenerator rotors, the material characteristics parameters of shafts are often considered to be constant.
在进行汽轮发电机组轴系扭振分析时，通常假设轴系材料特性参数为常数。
The relation between the dynamic characteristics and the system parameters such as material parameters, electromagnetism parameters, structure parameters, is derived in the dynamic equation.
所建立的系统模型反映了系统动态特性参数与铰链弹性五杆机构结构参数、电机电磁参数之间的关系。
On the basis of analysis of the forming characteristics of rectangular cup, the influence of material parameters on formability under certain forming mode has been studied.
在对模拟成形件进行成形特征分析的基础上，研究了特定成形方式下材料参数对冲压成形性的影响规律。
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