介绍了冶金起重机金属结构偏轨箱形模拟主梁的疲劳失效分析研究结果，提出疲劳失效的原因及改进措施。
Failure analysis of side rail box imitating chief beam of metallurgy crane was studied. Cause of fatigue failure and improving method were given.
对某车型发动机排气歧管的热疲劳断裂问题进行综合失效分析，并从材料、结构方面提出改进意见。
This paper gives a comprehensive failure analysis on the thermal fatigue crack of engine exhaust manifold and makes an improvement for materials and structures.
分析其失效原因为铅合金在外力作用下，产生塑性变形引起的低周疲劳，造成断裂。
Through analysis, the failure reason was confirmed as that the low cycle fatigue caused by plastic deformation occurred in the lead alloy, thus the fracture occurred.
针对疲劳裂纹扩展寿命失效概率计算的复杂性，提出基于神经网络响应面的可靠性分析方法。
In response to the complexity of calculation for failure probability regarding fatigue crack growth life, a method for reliability analysis based on neural network response surface was presented.
本文采用概率断裂力学方法和可靠性分析方法，针对压力容器焊接接头的组织不均匀特点，研究了焊缝区疲劳失效概率模型。
The paper studies the fatigue failure probabilistic model of the weld zone in welded joint using probabilistic fracture mechanics and reliabilitistic analysis methods.
校核了主轴在循环载荷下的疲劳强度，为主轴的失效分析和优化设计提供了可靠的理论依据。
After checking the spindle's fatigue strength which suffered from a circulating load, it can provide reliable theoretical basis for failure analyzing and optimization designing of the spindle.
经多次分析，确定主要原因是应力集中和表面质量差引起的疲劳失效。
Through analysis many times, the main reason is fatigue failure that is caused by stress concentration and surface quality.
以实测为根据，应用断裂理论对滑块式联接轴叉头进行了失效分析，并提出了提高疲劳寿命的措施。
The failure analysis for universal shaft joint based on measuring results as well as fracture mechanic is carried out. And proposals of improving its endurance life are suggested.
通过对填料盘工作状况和失效机制的理论分析，进而在理论上证明了填料盘的开裂是由于微动疲劳造成的。
By analyzing the working condition and failure mechanism of packing box, it is proved in theory that fretting fatigue results in the failure of packing box.
在某些情况下，如进行复杂应力条件下的疲劳素损伤分布分析，疲劳失效寿命和应力幅水平的连续分布模型更有意义。
In some cases, the continuous distribution model of fatigue failure life and stress amplitude level is more valuable in analyzing the damage of ponogena under complicated stress.
以实测为根据，应用断裂理论对滑块式联接轴叉头进行了失效分析，并提出了提高疲劳寿命的措施。
The failure analysis for universal shaft joint based on measuring results as well as fracture mechanic is carried out.
利用扫描电镜对失效压铸模具热疲劳裂纹的宏观、微观、断口形貌进行了分析。
The macro-morphology, micro-morphology and fracture morphlogy of failure die casting dies were analyzed.
点蚀；疲劳；失效分析；
分析了压铸过程中模具的热疲劳失效机理及其影响因素，讨论了优化压铸过程控制对模具寿命的影响。
Heat fatigue failure mechanism of the die casting dies during the process of die casting were analyzed, and the influence of optimizing process control on die life of die casting were discussed.
分析了铸轧辊套的失效机理；提出了铸轧辊套疲劳寿命预报公式。
The failure mechanism of a roll shell in continuous roll casting is discussed and a formula for predicting its fatigue life is established.
本文对医用加压钉板固定螺钉断裂进行了失效分析，分析结果表明螺钉为疲劳断裂，并提出了恰当的取出加压钉板的时间。
This paper has analysed fixed screw of consolidate steel plate failure. Result that screw is fatigued failure. The time of steel plate taken out are discussed.
综合分析了阀片的失效原因、机理，并进行了对阀片边缘实施滚磨倒角来提高其疲劳寿命的实验研究。
The cause and mechanism of valve failure are analyzed, and the method of tumbling chamfer is studied to improve service life of the valves.
对受高温磨损破坏的导卫板进行了失效分析，认为导卫板主要受到了疲劳磨损和磨料磨损。
The guide piece, which was worn seriously under high temperature, was analyzed. It is show that the wear mechanism of guide piece is fatigue wear and abrasive wear.
针对大型活塞式压缩机部分行程顶开进气阀调节装置，分析施力压叉产生疲劳断裂失效的原因。
The fatigue rupture failure cause of the executing fork was analyzed for press off inlet valve of a piston compressor.
本文介绍了CL7铲运机变速器蝶形弹簧失效原因的分析和台架疲劳寿命试验研究，提出了提高蝶簧疲劳寿命的改进措施。
Failure diagnosis of disc spring in transmission of scraper Model CL7 and bench life test for its fatigue life are introduced. Improvement measures in increasing its fatigue life are proposed.
具体分析了结构系统在静载和疲劳载荷作用下的失效机理以及各失效模式之间的相关性，给出了在静载和疲劳载荷作用下结构系统的可靠性分析方法。
The paper discusses the failure mechanism of structural system subjected to dead and fatigue load and gives the method of reliability analysis considering static strength and fatigue.
本文还对裂纹扩展途径与断口形貌之间的关系进行了分析，对进一步研究低温用钢的疲劳特性和低温下工程结构的失效分析具有重要意义。
We also analyse the relationship between crack growth track and fractography. Thereforde, it is significant for studying the fatigue property of the steel used and its fatigue analy…
本文还对裂纹扩展途径与断口形貌之间的关系进行了分析，对进一步研究低温用钢的疲劳特性和低温下工程结构的失效分析具有重要意义。
We also analyse the relationship between crack growth track and fractography. Thereforde, it is significant for studying the fatigue property of the steel used and its fatigue analy…
应用推荐