| 1. | Research of self - sensing magnetic damper
自感式电磁阻尼器的研究 |
| 2. | On - line elimination of oil whip by passive electromagnetic damper
被动式电磁阻尼器在线消除油膜振荡研究 |
| 3. | Research on ipc - based self - sensing magnetic damp testing system
基于工控机的自感式电磁阻尼器试验台架的研究 |
| 4. | 5 . the electromagnetic actuator is developed for the same purpose . it works with dc current and has a smaller volume
5 .在被动式电磁阻尼器的基础上，又进一步提出并设计了电磁执行器。 |
| 5. | 4 . based on the active magnetic bearing , the passive electromagnetic damper is designed , which works contactless and with dc current
浙江大学博士学位论文4 .运用电磁轴承原理提出并设计了被动式电磁阻尼器。 |
| 6. | The damper is mounted on the free end of the rotor . the experiments done show that the oil whip can be good damped by the passive electromagnetic damper
在理论计算的基础上还进行了实验研究，在不停机的条件下，通过被动式电磁阻尼器成功地在线消除了系统的油膜振荡。 |
| 7. | By designing a good damping structure , we finished the spin test at the speed of 67000 successfully . 2 . we introduced a new kind of vibration controlling technique - cpmd
介绍了一种新型的振动控制装置? ?可控被动式电磁阻尼器的工作原理，抑振特性及其对转子系统的影响。 |
| 8. | 3 . we systemically analyzed the relationship among the cpmd ' s structure parameters and fully considered the factors which possibly affect the feature of cpmd . the program of the structure optimization design of cpmd was also developed
详细分析了电磁阻尼器各个几何参数，提出了一种实用的电磁阻尼器结构优化设计方法，并给出了设计程序。 |
| 9. | Finally , the wave equation of the electromagnetic field of this kind damper is derived from the maxwell ' s equation . the magnetic flux density at the boundary is assumed to be harmonic , so the analytical result of the wave equation is solved . when the rotor rotates , eddy currents flowing inside the conducting material field are caused
最后，应用ahrens的电磁轴承简化模型，从maxwell方程出发推导了应用于本文所述的被动式电磁阻尼器的波动方程，并用傅立叶级数把矩形磁场展开的谐变磁场作为磁场的边界条件，通过求解波动方程得到磁场的解析解，从而计算了阻尼器对转子的电磁力和由涡流引起的切向力产生的阻尼器附加功耗。 |
| 10. | As a result , the electromagnetic field intensity is changed accordingly and fluctuating current in the damper coil is created . damping force is mostly produced because of the phase difference between fluctuating current and displacement of rotor . the formulas of fluctuating current and damping coefficient are deduced theoretically , and the calculated results are consistent with the experimental results
通过分析发现电磁阻尼器线圈内由于转子涡动时变化的磁场而产生的波动电流与转子位移间的相位差是产生阻尼的主要原因，推导了波动电流、阻尼系数的计算公式，并通过实验展示了被动式电磁阻尼器的阻尼效应。 |
