1)Unstable vibration失稳振动
1.On the basis of establishing the model of the system containing both support damping and rotor external damping, the film unstable vibrations of the system are calculated by the use of nonlinear method, then the methods and the concrete measures of narrowing unstable region are dealt with ,thus proving that the width and the amplitude of the unstable region is limited.在建立包含支承阻尼和转子外阻尼在内的弹性支承滑动轴承系统模型的基础上，用非线性方法计算了该系统的油膜失稳振动，讨论了缩小失稳区的方法和具体措施。
2)precessing resonant instability进动共振失稳
3)jitter[英]['d?it?][美]['d??t?]跳动，振动，晃动;不稳定性(信号)，失稳，失步
4)flutter instability颤振失稳
1.For pined_pined,loosed midpoint support plate,it is found that the plate s buckling instability will happen first while the flutter instability will disappear.发现板在两端简支、中点联结松动时 ,结构首先出现屈曲失稳 ,而不会发生颤振失稳。
2.The wind tunnel sectional model tests reveal that the flexural galloping may occur in the hangers under small wind attack angles when the webs are not perforated while the torsional flutter instability may initiate in the hangers at low wind speed of wind attack angle round 20° when the webs are perforated.节段模型试验发现,腹板不开孔吊杆在小攻角下可发生弯曲驰振;而腹板开孔的吊杆在20°攻角附近较低风速下可发生扭转颤振失稳,且发生扭转颤振失稳的风攻角区间受腹板开孔大小影响明显。
3.An experimental study of flutter instability of H-shaped slender member with different sizes of slotted web is carried out using both section models and aeroelastic model.通过节段模型与气弹模型风洞试验,研究了不同腹板开孔率的H型细长结构的风致颤振失稳特性。
5)dynamic instability and vibration失稳振荡
英文短句/例句
1.Study of Stability of Subsynchronous Resonance and Dynamic Bifurcation of High-Dimensions Power System;高维网机系统次同步失稳振荡的动态分岔分析与研究
2.The Nonlinear Analysis on the Mechanism Giving Rise to the Oil Whip Instability of Large High-Speed Rotor;大型高速转子油膜振荡失稳机理非线性分析
3.high stability crystal oscillator高稳定度晶体振荡器
4.delay monostable multivibrator延迟单稳态多谐振荡器
5.complementary bistable multivibrator互补双稳态多谐振荡器
6.time delay flip-flop延时双稳态多谐振荡器
7.phase-bistable flip-flop相位双稳态多谐振荡器
8.triple monostable multivibrator三单稳态多谐振荡器
9.gate pulse monostable multivibrator门脉冲单稳多谐振荡器
10.Cavity-stabilized local oscillator空腔稳频本地振荡器
11.ferroresonant flip-flop铁磁共振双稳态多谐振荡器
12.astable multivibrator无稳态多谐振动器;无稳态多谐振荡器;无稳态复振器
13.Bistable multivibrator双稳态多谐振动器;双稳态多谐振荡器双稳态复振器
14.high stability oscillator with resistance-capacitance coupling高稳定度振荡器带电容电阻耦合器
15.high stability quartz crystal oscillator高稳定度石英晶体振荡器
16.transistor univibrator晶体管单稳态多谐振荡器
17.time sweep flipflop时间扫描双稳态多谐振荡器
18.flip flop circuit双稳态多谐振荡器触发电路
相关短句/例句
precessing resonant instability进动共振失稳
3)jitter[英]['d?it?][美]['d??t?]跳动，振动，晃动;不稳定性(信号)，失稳，失步
4)flutter instability颤振失稳
1.For pined_pined,loosed midpoint support plate,it is found that the plate s buckling instability will happen first while the flutter instability will disappear.发现板在两端简支、中点联结松动时 ,结构首先出现屈曲失稳 ,而不会发生颤振失稳。
2.The wind tunnel sectional model tests reveal that the flexural galloping may occur in the hangers under small wind attack angles when the webs are not perforated while the torsional flutter instability may initiate in the hangers at low wind speed of wind attack angle round 20° when the webs are perforated.节段模型试验发现,腹板不开孔吊杆在小攻角下可发生弯曲驰振;而腹板开孔的吊杆在20°攻角附近较低风速下可发生扭转颤振失稳,且发生扭转颤振失稳的风攻角区间受腹板开孔大小影响明显。
3.An experimental study of flutter instability of H-shaped slender member with different sizes of slotted web is carried out using both section models and aeroelastic model.通过节段模型与气弹模型风洞试验,研究了不同腹板开孔率的H型细长结构的风致颤振失稳特性。
5)dynamic instability and vibration失稳振荡
6)oscillation instability振荡失稳
延伸阅读
裂纹失稳扩展分子式：CAS号：性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
