| 1. | Dynamics of pedestal looseness rotor system near the critical speed region
支承松动故障转子系统共振区动态特性分析 |
| 2. | Far from resonance , the two - level medium becomes transparent but the index of refraction is almost the same as in a vacuum
在远离共振区，吸收很小，但此时折射率也变得和真空中一样。 |
| 3. | On the other hand , the phase will show a 2 n jumping not only in low frequency region but also in resonant , region
同时发现相位测量除了在低频区会发生2 。跳变外，在共振区也可能发生2 。 |
| 4. | The dynamic properties of the piezoelectric active member ca n ' t be neglected , especially in its area of resonance
压电主动构件本身的动力学特性是不可忽视的。特别对于其共振区更为突出。 |
| 5. | In double resonances condition 2 2 1and ? 2 , with the changing of parameters of the system , amplitudes of certain modal can be changed
1的情况下,能在共振区的一侧激起新的振动,在双重共振2 2 1且 |
| 6. | We have to optimize the physical parameters synthetically to largen the region of the resonance , minish the range of jumping and increase the amplitude
而增大共振区,减小跳跃幅度,以及增大共振的幅值就需对系统各物理参数进行综合选择,以得到最优值。 |
| 7. | The study shows that shortening the span length can effectively reduce the transverse vibration amplitude of synchronous belt and can avoid possible resonance region of synchronous belt
结果表明，减小同步带跨度既可以有效减小同步带运动过程中横向振动幅度，又可以使同步带运动有效避开正时传动机构可能的共振区。 |
| 8. | Row winding , winding engine adopting ac servo engine with berger lahr three phase mixed stepping can solve the resonance , big noise , high speed and small torque for traditional row winding hy normal stepping engine
1 、排线、绕线电机采用具有支流伺服电机运行特性的百格拉三相混合式步进。彻底解决传统排绕用普通步进电机有共振区、噪声大、高速扭矩小的缺点。 |
| 9. | By the usage discovers the existing synchronous controller while near to resonance area and the low frequency areas of vibrate the pedestals , drive the signal and the feedback signalses all very small , control result is not very ideal
经过使用发现现有同步控制器在接近振动台的共振区和低频区时,驱动信号和反馈信号都很小,对幅值和相位的控制效果不能满足要求。 |
| 10. | The theory of fuzzy reliability design is applied to study the anti - vibration design of the driving shaft of swing movable teeth reducer . the randomness of working frequency and the fuzziness of the critical speed bonder are discussed . the corresponding formulae of calculating the fuzzy reliability are presented
将模糊可靠性设计理论引入摆动活齿减速器输入轴的抗共振设计中，分析了摆动活齿减速器工作频率的随机性和共振区边界取值的模糊性，并给出了相应的模糊可靠度计算公式。 |
