对焊接结构疲劳寿命的预测有重要理论意义和实际应用价值。
For weld structure fatigue life forecasting, it has important theory meanings and practical applying value.
最后，在假定结构疲劳寿命服从威布尔分布的基础上，推导了相应的疲劳可靠度公式。
Finally, given that the structure fatigue longevity obey the Weibull distribution, thefatigue reliability formula can be deduced.
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。
The results indicate that EMR can improve the fatigue life of structure, and can drive interference-fit fastener with large interference.
以剩余强度衰减理论为基础，建立了一种复合材料结构疲劳寿命可靠性定量分析的工程方法。
A analysis method of fatigue life reliability for composite structures is developed based on residual strength degradation theory.
奉文重点讨论了渤海锥体与圆柱抗冰结构动冰力模型的进展，为定量计算结构疲劳寿命创造了条件。
Then the dynamic ice force researches on both vertical and conical structures in Liaodong Bay are presented, which form the foundation of quantitatively calculating the structural fatigue life.
主要通过飞行参数记录仪(FPR)记录的数据研究战斗机起飞外挂重量对飞机结构疲劳寿命的影响。
How the variation of take-off suspension weights affects the structural fatigue life is investigated through surveying actual flight parameter recorder (FPR) data.
针对一类含橡胶减振垫燃油泵托架出现疲劳断裂的现象，研究利用数值仿真技术预测结构疲劳寿命的方法。
Using numerical simulation technology, we study a method for predicting the structural fatigue life of a fuel pump bracket(FPB) that contains rubber cushion for vibration reduction.
为评估地面停放预腐蚀对飞机结构疲劳寿命的影响，采用二元线性回归方法建立了一种新的预腐蚀疲劳曲线幂函数表达式。
To quantitatively evaluate the effects of corrosion during grounding on fatigue life of aircraft structures, a new power equation is proposed using two-variable linear regression method.
介绍了疲劳累积损伤模型，并对不同载荷谱作用下的结构疲劳寿命预测公式进行了理论推导，为后面的计算分析奠定了理论基础。
A cumulation damnification model is introduced. The formulae of structure fatigue lives prediction are deduced to form the basis of the following calculation and analysis.
所得结果可以为预测复合材料结构的声疲劳寿命提供参考。
The results can provide references for forecasting acoustic fatigue life of composite structures.
本文采用断裂力学方法来估算结构构件的疲劳寿命，这其中主要围绕裂纹扩展速率表达式展开研究。
Fracture mechanics is adopted to estimate the fatigue life of structural members, and among the rest, crack growth rate formula is studied.
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 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.
薄壁结构的动力特性及动态响应分析是声疲劳分析以及寿命估算的基础。
Analysis of structural dynamic performance and response is the foundation to estimate fatigue life.
结论有助于钢筋混凝土结构的疲劳设计，可靠性分析和寿命估算等。
This research contributes to fatigue design, probability analysis and life estimations for steel reinforcement concrete structure.
结果表明，合理选择焊接接头形式和焊接工艺可以成倍地提高结构的疲劳寿命。
The results show that the proper selection of modes of welded joints and welding technologies can double improve the fatigue life of structures.
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.
介绍了机械零部件结构可靠性虚拟疲劳设计的软件及疲劳寿命预测方法。
The Virtual fatigue design software and fatigue-life prediction method for structural reliability of mechanical parts are introduced.
最近，本文第二作者提出了一种海洋结构物疲劳寿命预报的统一方法。
There have been some fatigue life prediction methods in the recent decades, but most of them cannot explain some known fatigue phenomena.
该研究为长寿命承力结构的疲劳可靠性评定奠定了基础。
This research lays down a base for assessing fatigue reliability of the aging structures.
焊接结构的疲劳寿命通常分为工艺寿命和使用寿命。
The fatigue life of welding structures includes technological life and service life.
对比原始均匀压力线圈，验证结构参数优化后疲劳寿命有所提高。
Original uniform pressure on the coil compared to verify the optimized structural parameters of the fatigue life increased.
此种结构一般采用螺栓连接，其连接处的疲劳特性往往决定了结构的使用寿命。
Most commonly, bolted joints are adopted to connect laminates to other structures, and the fatigue properties of joints affect the service life of jointed structures seriously.
研究结果表明，结构件之间的连接部位混合使用不同剪切刚度的紧固件，将会比较明显地降低结构连接部位的疲劳寿命。
The results indicate that the mixed use of different-shear stiffness fasteners will lead to obviously reduced structure fatigue life in attached area.
通过正确地选择波纹管制作材料和结构、合理设计波形参数和疲劳寿命、保证安装质量等措施，可提高波纹管补偿器的安全可靠性。
This paper sates that selecting bellows material correctly, designing waveform parameter and fatigue life, ensuring installation quality can improve the safety and reliability of bellows compensator.
通过对结构疲劳裂纹形成寿命和裂纹扩展寿命的研究，提出了连接件疲劳全寿命的计算方法。
A calculating method of the total fatigue life of structural joints is proposed based on a study on both the fatigue crack initiation life and crack growth life of joints.
为了保证结构在设计寿命期内的安全使用，有必要对结构进行整体疲劳分析，评估其在设计年限内的疲劳损伤程度。
In order to ensure structural safety in the design working life, it is necessary to carry out integrity analysis of fatigue and to evaluate the degree of fatigue damage on the structure.
变化载荷作用下裂纹扩展律和疲劳寿命的计算对工程结构的寿命的可靠预测是十分重要的。
Study of fatigue crack growth rate and fatigue life calculation under random loading is very important for the reliable life prediction of engineering structures.
变化载荷作用下裂纹扩展律和疲劳寿命的计算对工程结构的寿命的可靠预测是十分重要的。
Study of fatigue crack growth rate and fatigue life calculation under random loading is very important for the reliable life prediction of engineering structures.
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