提出了一种随机振动疲劳寿命预计的简便数据处理方法。
A new and simple method is presented for random vibration fatigue life prediction.
建立了预估谐振载荷作用下结构振动疲劳寿命的损伤力学-有限元方法。
For predicting vibration fatigue life of engineering structures under resonant loading, damage mechanics-finite element method was constructed.
本文研究了TC_6钛合金片状、网篮、等轴和双态组织的振动疲劳性能。
The vibration fatigue characteristics of TC6 titanium alloy with Widmanstatten, basket-weave, equiaxed and duplex microstructures have been studied.
另外，还介绍了挤包式铝管结构OPGW在抗雷击及耐振动疲劳方面的优越性能。
On the other hand, present additionally the good performance of extruded aluminum tube OPGW on Lightning resistance and Anti vibration fatigue.
通过三个算例，计算结果表明本文提出的方法能很好地预测缺口件振动疲劳寿命。
Through three typical examples, the results show that the method proposed in this paper can predict the vibration fatigue life of notched specimens well.
提出了一个考虑应力集中和疲劳极限影响的缺口件频域随机振动疲劳寿命估算方法。
A frequency domain method for predicting the fatigue life of notched specimens under random vibration loading is presented.
结果表明，叶片的断裂模式为振动疲劳，叶片榫头与榫槽配合不当是萌生疲劳裂纹的主要原因。
The results show that the fracture mode of blade is vibration fatigue and the main cause of initiation of fatigue crack is the mismatch between rabbet and tongue-and-groove.
OPGW的力学特性对于OPGW作为地线安全运行很重要，尤其是拉断力、蠕变、振动疲劳特性。
The mechanical characteristics of OPGW are very important to OPGW safe-running as earth wire, especially the tensile strength, creep and fatigue.
采用电磁涡流激振的振动疲劳试验，对TC4材料制成的平板叶片受外物损伤后的剩余振动疲劳寿命进行了研究。
The residual vibration fatigue life of TC4 plate blade subjected to Foreign Object Damaged (FOD) is investigated by means of eddy current excited vibration fatigue tests.
为了避免弹簧的疲劳破坏，设计者应对弹簧由振动所引起的动力影响加以考虑。
The dynamic effects due to vibration should be taken into account by the designer if fatigue failure is to be avoided.
在我们亲身体验到了这较低的振动的时候，我们十分敬畏于你们坚定不移的履行你们任务的能力，而时常伴随你们体验的都是疲劳与疲惫。
Having experienced the lower vibrations ourselves, we are in awe of your ability to steadfastly stick to your tasks when often you experience fatigue and tiredness.
机构铰接副处过大间隙将引起异常的振动与噪声，加速了疲劳与磨损，严重地影响了机器的动态性能。
Excessive clearance of mechanism joint pair will cause abnormal vibration and noise, accelerate fatigue and wear and seriously affect the dynamic performance of machine.
主要涉及的内容包含每个设备部件的应力、疲劳、热棘轮、断裂力学分析和内部构件流致振动分析以及试验验证等。
The design mainly involves the analysis of the stress, fatigue, thermal ratchet and fracture mechanics, the analysis of flow-induced vibration of the internals and the test verification.
文中指出，钢筘的失效是振动磨损、磨粒磨损、疲劳破坏和冲击损坏综合作用的结果，其中冲击损坏的危害作用最大。
The paper points out that reed failures result from the synthetical action of vibrating wear, grain wear, fatigue damage and last, impact action-the most dreadful damage.
文中指出，钢筘的失效是振动磨损、磨粒磨损、疲劳破坏和冲击损坏综合作用的结果，其如十击损坏的危害最大。
The paper points out that reed failures are resulted from the synthetical action of vibrating wear, grain wear, fatigue damage and last. impact action - the most dreadful damage.
针对钢球表面易产生擦伤，影响钢球精度等原因，采用表面强化处理的方式提高钢球表面质量，降低振动值，提高疲劳寿命。
Based on this, the steel ball surface quality is increased by the means of surface handling, then the vibration value is reduced, the fatigue life is raised.
钢结构长期在这种振动的影响下就会导致金属结构疲劳破坏；
It will cause metal structure to fatigue destruction if steel structure is influenced in the vibration for a long time.
噪声载荷作用下薄壁壳体的振动应力响应分析是声疲劳研究的重要任务之一。
Random vibration response analysis of thin-shells excited by acoustic loads is one of the important tasks of sonic fatigue investigation.
从非定常流动和弹性叶片振动相耦合的角度来研究叶片的强迫响应，对于叶片的高周疲劳具有重要意义。
From the standpoint of coupling of non-steady flow with elastic blade vibration, studied was the forced response of blades, which is of major significance for the high-cycle fatigue of blades.
这种振动可能在拉索及其锚固端附近导致疲劳破坏。
These unanticipated vibrations potentially induce undue fatigue in cables themselves and in anchorages at bridge deck and tower.
箱体振动极易导致齿轮的不对中，引起箱体的疲劳损伤破坏，降低齿轮箱的使用寿命。
The vibration of gear box can easily lead to wrong and the fatigue damage, reducing the life of gearbox.
新型伺服阀可以应用于振动试验台、疲劳试验台及需要快速反应的流体控制系统中，可提高系统的快速响应特性。
The new type servo valve can be used in the vibration test bench, the fatigue test bench, and the various hydraulic control systems which need fast response characteristics.
由于构件的材料参数、几何参数及所受的载荷均为随机变量，所以构件振动时其固有频率及疲劳极限亦为随机变量。
Material characteristics, geometrical property of a structural components and the load acted on it are random variables. As a result, its natural frequency and fatigue strength are random ones.
换档操纵手柄的振动，会使驾驶员产生烦燥、疲劳。
Sometimes the vibration causes the transmission out of engagement and leads to the drivers to be fidgety and tired.
调节阀的流体振动会造成阀杆疲劳断裂与阀碟的损坏，以及整个阀门及管道系统的共振。
Flow vibration in turbine control valve is the major consequences of valve stem rupture, valve disc damage as well as the resonance of valve and its pipings.
建立了深水环境下涡激振动的非线性微分方程，给出疲劳计算公式，并对比了浅水控制方法与深水控制方法计算的临界跨长。
This paper establishes nonlinear differential equations, gives the fatigue equations and compares the critical spanning of pipeline of calculated results from the shallows and deep water.
针对斜拉索的振动和疲劳，研究了斜拉索的减振措施，选择了合适的减振装置。
To solve the problems of vibration and fatigue of cable, the research on measurements to reduce the vibration is taken, and the suitable device is selected.
通过振动三轴试验，研究干湿循环过程对水泥改良粉质粘土和水泥改良粉土疲劳强度的影响。
The effects of cyclic dry-wet process on the fatigue strength of the cement silt clay and the cement silt are researched by cyclic triaxial tests.
计算结果表明，疲劳裂纹不仅使悬臂梁的固有频率下降，而且引起非线性强迫振动响应。
The results show that the fatigue crack not only decreases the natural frequency, but also causes non linear vibration.
本文通过电测应力、振动测试及有限元计算找出驾驶室的薄弱环节，并在振动试验台上进行疲劳试验验证。
Vulnerable parts in tractor cab are found by using stress measurement, vibration tests and finite element approach, and verified by fatigue tests on vibration test table.
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