rotational variable

A Theory of Relativistic Analytical Statics of Variable Angular Velocity Rotational Systems

变角速度转动系统的相对论性分析静力学理论

The stator with three-phase or polyphase winding generates variable frequency energy, voltage following rotational speed, while the rotor has structure of permanent magnetism or electrical excitation.

发电机的定子为三相或多相绕组，转子采用永磁体或电励磁结构；定子发出非工频的电能，电压也随转速变化；

Take into consideration of the timing of gear shift when the vehicle running on the road, the thesis formulates the rotational speed controlling scheme of the variable frequency motor on the testing bench.

结合车辆在路面行驶时的换档时机，制定了测试台架上变频电机转速的控制方案。

lie symmetries and quantities of conservation for a nonholonomic system with a relativistically rotational variable mass

相对论性转动变质量非完整系统的Lie对称性与守恒量

lie symmetries and conserved quantities of relativistic rotational variable mass system

相对论转动变质量系统的Lie对称性与守恒量