One thing that does ground old aircraft is the impending failure of their aluminium structure from metal fatigue.
让老旧飞机搁浅的一件事就是飞机铝构造因为金属疲劳产生的故障隐患。
Linking Riveting Process Parameters to the Fatigue Performance of Riveted Aircraft Structure.
铆接过程参数与铆接飞机结构的疲劳性能的联系。
Than the structure details contained in integral joint are analyzed, and the fatigue property of steel bridge integral joint is evaluated.
然后分析了钢桥整体节点所包含的构造细节，评价了钢桥整体节点的疲劳性能。
The prediction of fatigue life is important for steel towers and so on, because for this type of structure wind load is regarded as the main load.
由于风荷载是钢塔架等钢结构的主要荷载，风荷载作用下上述结构的疲劳寿命预估因而是至关重要的。
The primary cause of breakage is that the dynamic stress exceeded the allowable fatigue limit of the beam, and another cause is that the structure of the beam is unreasonable.
通过计算证明引起断裂的根本原因是动应力超过了梁的许用疲劳极限，另一原因是梁的结构不合理。
This paper probes into the methods and contents of fatigue tests and fatigue design of crane's steel structure, and advances some new opinions.
文章探讨了起重机钢结构疲劳试验及疲劳设计的方法和内容，提出了新的观点。
So, it is the new method of researching welded structure fatigue damage process.
因此，它是一种研究焊接结构疲劳损伤过程的新途径。
Body structure of rugged, ergonomic design, prevent fatigue.
坚固的机身结构，人体工程学的设计，防止疲劳。
The relation between the extension of fatigue cracks and structure are discussed.
并讨论了疲劳裂纹的发生、扩展与组织的关系。
With the popularization and application of this structure in industrial factory with suspended crane, the fatigue performance becomes the hot problem to be solved for many years in engineering circle.
随着螺栓球节点网架在悬挂吊车工业厂房中的推广应用，其疲劳性能成为工程界多年来尚待解决的热点问题。
Safety life of crane was determined by its fatigue intensity of metal structure.
起重机的安全寿命取决于其金属结构的疲劳强度。
Fatigue failure is a common kind of mechanical parts and structure damage.
疲劳破坏是机械零件和结构的常见的失效形式。
It is a new method to increasing fatigue strength of welded joints and structure by peening welded toes with ultrasonic peening equipment.
使用超声波冲击焊趾来提高焊接接头及结构的疲劳强度，是国际上刚刚出现的一种新方法。
Based on the many times tests and analyses, a real time system about spot testing fatigue load spectrum of engineering structure materials was studied and developed.
在多次试验和分析的基础上，研制了一种可用于现场测试的工程结构材料疲劳载荷谱实时测定系统。
Vortex-induced vibration is limited amplitude response, but it occurs at low wind speed with relative large amplitude, which will affect the strength and fatigue resistance of the structure.
尽管涡振是一种限幅振动，但由于其发生风速较低，振幅相对较大，会影响结构的强度和疲劳，因此大跨度拱桥的涡振响应研究具有重要的意义。
Fatigue failure of metal structural component is a common form of structure collapse, so improving fatigue behavior of metal materials is very important for their usage.
金属构件的疲劳失效是一种常见的结构破坏形式，改善金属材料的疲劳性能对其使用性能的提高有重要意义。
In this paper, an engineering approach for determining initial fatigue quality (IFQ) of aeronautic structure details (fastener holes) is introduced.
本文介绍了一个定量地确定飞机结构细节(紧固孔)的原始疲劳质量的工程方法。
The results indicate that EMR can improve the fatigue life of structure, and can drive interference-fit fastener with large interference.
研究结果表明，电磁铆接技术能够提高结构疲劳寿命，能够安装大干涉量干涉配合紧固件。
In this dissertation, the theory which is known of concrete structure fatigue cumulative damage and damage detection is narrated.
本文阐述了已有的混凝土结构疲劳累积损伤理论和疲劳损伤识别原理。
The full-scale fatigue test of connection structure details between floor beams and monolithic joints was carried out on the Caiyuanba Yangtze River bridge in Chongqing.
对重庆菜园坝长江大桥轨道横梁与整体节点的连结构造细节进行了足尺模型疲劳试验。
It's a new method to increase fatigue strength of welded joints and structure by peening toe of weld with ultrasonic peening equipment.
使用超声波冲击焊趾来提高焊接接头及结构的疲劳强度，是一种国际上刚刚出现的新方法。
At last, the corresponding analysis of surface structure and testing of fatigue life were given.
最后还给出了相应的表层组织结构分析和疲劳寿命试验结果。
By importing results from the global model, some sub-models with very fine mesh are created to do fatigue assessment of structure details.
利用整体舱段的粗网格模型计算结果，建立子模型划分精细网格进行结构细部疲劳评估。
Through the cyclic parameter analysis and the method of fatigue life estimation, a basis for fatigue life estimation of typical lower-wing structure is established.
这一循环参数分析和疲劳寿命估算方法为典型机翼下壁板结构的疲劳寿命估算建立了基础。
The coupling effect of fatigue and erosive ions is introduced on the level of material and structure.
从材料、结构角度对疲劳荷载和腐蚀介质的耦合作用进行了总结与分析。
The fatigue strength of the structure is checked.
校核了结构的疲劳强度。
The fatigue breakage is one important of damage style in mechanic fractures. Forecasting structure fatigue life is very important.
疲劳破坏是机械结构的主要破坏形式之一，准确预测机械结构工作疲劳寿命至关重要。
Widely absorbed some new advantages of mechanical structure fatigue of the domestic and abroad, lots of researches on fatigue problem of locomotive car-body has been done in this thesis.
本文在广泛吸取国内外机械结构疲劳问题的研究成果的基础上，对某型机车车体结构的疲劳问题的研究进行了大量的工作。
The analysis of fatigue life for one critical position of aircraft structure and test verification are carried out accordingly.
据此对一个飞机结构危险部位作了疲劳寿命分析和试验验证。
The analysis of fatigue life for one critical position of aircraft structure and test verification are carried out accordingly.
据此对一个飞机结构危险部位作了疲劳寿命分析和试验验证。
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