| 1. | Theory of the self - excited oscillation pulsed jet nozzle 自激振荡脉冲射流喷嘴的理论分析 |
| 2. | Numerical study on self - excited oscillation combustion in a combustor 燃烧室内自激励振荡燃烧的数值研究 |
| 3. | Self - excited oscillation 自激荡器 |
| 4. | Simulative study on eliminating of self - excited oscillation in turning process via neural network control technology 利用神经网络控制技术消除车削过程自激振荡的仿真研究 |
| 5. | This dissertation is devoted to the investigation of the influence of self - excited oscillation jet on heat transfer enhancement 本课题将helmholtz共振腔所产生的自激振荡脉冲射流引入换热器以实现强化换热。 |
| 6. | Sometimes cavitation and self - excited oscillations may exist in the jet flow field . they may performance and lifetime of the servo valve 射流流场产生的气穴不仅破坏流体的连续性,而且还引起振动和噪声,直接影响到阀的性能与寿命。 |
| 7. | The vortex - excited oscillation , wake galloping , rain - wind vibration and buffetting are the main cause of the fatigue in the vicinity of the anchorages on cables of cable stayed bridges 涡激振、风雨振、尾流驰振、抖振等风致振动容易造成斜拉桥拉索锚固端疲劳,促使锈蚀加快,严重影响拉索的使用寿命。 |
| 8. | But sometimes self - excited oscillations and noise may appear in hydraulic flapper - nozzle servo - valve if its construction is not selected very correctly . if self - excited oscillations and noise appear in hydraulic servo - valve , the performance of hydraulic control systems may lose stability 因它具有非常快的响应速度,所以是目前应用最广泛的伺服阀,但它也存在自激现象,容易产生自激噪声和振荡,严重影响伺服控制系统的稳定性。 |
| 9. | Firstly , the mechanism of self - excited oscillation was introduced . when the water jets from the inlet nozzle flows into the chamber , the momentum exchange between the jet and the liquid in the chamber occurs , thus to form an unstable shearing layer with certain thickness 这是一种崭新的强化换热技术,流体脉动能够造成换热器全程的换热强化,而且自激振荡脉冲射流强化换热技术本身是一种无功强化的方法,无需输入外部能量来产生扰动。 |
| 10. | On the basis of the primary studies upon the nonlinear interactions between the unstable waves and the self - excited oscillations in the flow , experiments were focused upon the attenuation effects on the oscillations of tripping wires , side jets and deflected plates , and upon the mechanisms for the attenuations 在对流动的不稳定波之间非线性相互作用过程和自激振荡的基本规律研究的基础上,实验研究了绊线、旁射流和折板削弱自激振荡的效果与机制。 |