给出了叶盘结构振动应力数值预测方法。
The estimate method of vibrational stress of bladed-disk is given.
分别在环境温度或振动应力单独作用下,各自优化出四个应力水平。
Four stresses levers are achieved through optimizing design under surrounding temperature or vibration stress alone affected.
提出了一种确定航空发动机叶片振动应力的新方法——断口反推法。
A new method - reverse educing method is put forward int his paper, which is to estimate the vibration stress of aeroengine blade UN der rotating state.
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.
文中不仅介绍了重力拱坝自振频率与振型分布的研究结果,而且进行了振动应力的计算。
The authors not only presented the results of the investigation about the frequency of vibration and its amplitude of massive arch dam, but also computed its vibration stress.
本文讨论振动技术在可靠性工程中的两项最新应用,即随机振动应力筛选和振动故障诊断。
This paper discusses two new applications of vibration techniques in reliability engineering: random vibration stress screening and vibration fault diagnosis.
锥齿轮在高转速下,在槽底的离心应力和振动应力的组合应力是引起齿轮破坏的主要原因。
At high gearing speed the combined stresses of centrifugal load and resonance vibration at the notches are the main cause for the catastrophic failure of the bevel gear.
方法:应用可调脉冲频率的振动应力刺激仪,对43只家兔尺骨骨折进行不同频率应力刺激。
Methods: The fractured ulna of 43 rabbits were stimulated by vibration stress force of different frequency.
对叶片损伤处进行修复和适当减小叶片振动应力水平是提高叶片抗外物损伤能力的的有效途径。
Repairing of the damaged parts and lowering of the vibration stress in the blade are effective measures to improve the resistance of the blade to FOD.
不对称叶栅非谐设计虽然会引起与转速同频的较大幅值激振力成分,但从整体考虑可有效降低叶片振动应力。
Though asymmetry stator mistuned may result in bigger amplitude aerodynamic force with the same frequency as rotational speed, it could reduce effectively the aerodynamic force of blade as a whole.
认为错频对振动应力的影响正比于其对振动位移(振幅)的影响,可以从系统最大位移的角度来评估叶盘转子失效的风险。
The relations between vibration stress and vibration displacement are direct ratio, so the venture of bladed-disk assemblies invalidation can be evaluated according tot…
然后采用有限元数值计算方法对叶片进行静力分析、模态分析及裂纹应力强度因子计算,最后反推出叶片在旋转状态下振动应力值的大小。
Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.
采用实车路谱时域复现技术,对汽车电连接器进行振动可靠性室内强化试验,研究其在接近实际工况-振动应力和电应力联合作用下的可靠性。
Because there is not requirements of real vehicle road's signals in national standards, then the enhancement test's time can not be determined and the test results can not be appraised.
用于涡轮机叶片在动态状态下对其振动频率、动应力和温度进行遥测。
It is for telemetering the vibration frequency, dynamic stress and temperature of turbine blades under dynamic state.
在激光雕刻技术的进步,以减少材料应力和振动有助于扩大和增加对未来销售的应用潜力。
Advancements in laser engraving technology to reduce material stress and vibrations are helping to expand and increase the potential for future marketable applications.
根据接触悬挂系统中的接触线振动方程,推导了接触线应力的均值和方差的计算公式。
Vibration equations of contact wires were used to derive the formulae for calculation of mean and standard deviations of stresses.
为判断半刚性基层振动压实能否造成下承层的早期破坏,对半刚性基层在移动—振动压实荷载作用下的下承层动态应力响应进行分析。
The dynamic stress response of the lower course by moving-vibrating compaction on semi-rigid base was analyzed to judge whether it caused early wreckage to the lower course.
还非常适合在受振动、机械应力和强烈腐蚀的环境中应用。
They are also well-suited for applications experiencing vibration, mechanical stress and strong erosive forces.
基于应变叠加原理的基本思想。阐释了金属振动塑性加工平均应力减小的原因,给出了体积效应机理的数学描述。
Based on the strain superposition principle, the phenomenon of mean stress reduction in metals plastic processes with vibration is explicated. and the mechanism of volume effect is described.
目前,工厂中一般采用回火时效和振动时效法(VSR)对焊接构架中的残余应力进行消除。
At present, temper aging and vibration aging (VSR) are commonly applied to remove residual stress in welded frames in factories.
目前,振动试验中使用的夹具,其传递的应力往往存在较大的失真。
The stress transfer distortion exists in current fixtures on the vibration tables during testing.
首先介绍空空导弹飞控舱环境应力筛选随机振动试验过程中出现振动过应力的情况,然后对出现振动过应力的原因进行了分析。
Firstly, the situation of excessive dynamic stress during vibration test of environmental stress screening for an air-air missile flight control cabin was introduced.
用该系统可进行发动机构件的应力、振动和寿命分析。
The system can be used for the analysis of stress, vibration and life of the engine components.
牵引齿轮磨损产生的齿形偏差使得牵引构轮和牵引电机振动加剧,噪声增大,齿根应力大幅度增大。
The tooth shape deviation in the worn traction gear will increase the vibration of traction gear and traction motor, increase the noise and increase by large scale the dedendum stress.
新型下料机是利用变频振动实现低应力精密下料的。
New type of precision cropping machine utilizes variant frequency vibration to crop bar precisely with low stress.
为了探讨球应力振动下土的动力特性,研制了球应力振动仪。
A spherical stress shaking test apparatus is constructed in order to study soil dynamic properties under spherical stress shaking.
研究了45钢脉冲磁处理过程中残余拉应力与磁致振动之间的相互作用关系。
The relationship between magneto-vibration and magnetic treatment induced tensile residual stress reduction in the steel 45 was studied.
在温度和振动等综合应力的作用下,航天电连接器的主要失效形式为接触失效。
Under the action of multiple stresses, contact failure is the main failure mode of aerospace electrical connectors.
温度循环和随机振动是环境应力筛选最常用、最有效的筛选应力。
Temperature circulation and random vibration are the most usual and the most effective screening stress of Environment stress screening.
温度循环和随机振动是环境应力筛选最常用、最有效的筛选应力。
Temperature circulation and random vibration are the most usual and the most effective screening stress of Environment stress screening.
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