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.
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。
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.
本文提出了一种新的钢轨疲劳寿命的可靠度估算方法，使可靠性分析第一次进入钢轨的寿命估算。
This paper proposes a new estimating method which, for the first time. introduces reliability analysis into the life estimation of railway rails.
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.
该文对大型风力机玻璃钢叶片疲劳寿命的工程估算方法进行了研究。
The engineering estimation method of the fatigue life of largescale wind turbine GRP blade were presented.
研究了大型风力机玻璃钢叶片载荷谱和疲劳寿命的工程估算方法。
This paper presents the load spectrum and an engineering estimating method of the fatigue life of GRP blade of large-scale wind turbine.
该方法使分散性很大的疲劳试验结果得以合理处置，从而可准确地提供试验数据，供作材料疲劳鉴定与疲劳寿命估算之用。
This method can make the fatigue test result with great dispersion be processed reasonably, so as to provide correct test data for appraisal of material fatigue and estimation of fatigue life.
并根据其疲劳类型，确定选用安全寿命设计方法对塔式起重机钢结构进行疲劳分析，并应用名义应力法估算塔式起重机钢结构的疲劳寿命。
According to the fatigue type, use safe-life design method to study tower crane's fatigue, and choose nominal stress approach to estimate the life of tower crane.
本文在大量实验的基础上提出了对焊接节点采用断裂力学的方法和对螺栓球节点应用累积损伤理论估算它们疲劳寿命的计算方法。
Finally, the methods for calculating fatigue life based on fracture mechanics for welded node and cumulative damage theory for bolted sphere node respectively have been presented.
介绍了焊缝疲劳寿命估算的有效方法——VOLVO方法的步骤及原理。
The efficient method of seam weld fatigue life estimation----the procedure and principle of VOLVO method are introduced in this paper.
本文讨论在复杂载荷下疲劳（裂纹形成）寿命的估算方法。
Fatigue (information) life predictions under complex loading are discussed in this paper.
在损伤力学的基础上本文提出了深水海洋石油钢结构估算疲劳寿命的新方法。文中给出了石油大学新建立的疲劳损伤数学模型。
In this paper, a new method based on the theory of damage mechanics is suggested to estimate the fatigue life of offshore petroleum steel structures.
测定了300M钢的缺口疲劳始裂寿命曲线，给出了估算疲劳始裂寿命的方法。
The fatigue crack initiation life of 300M steel is experimentally investigated and a simple method for predicting the fatigue crack initiation life of materia is offered.
采用斯贝MK202发动机应力标准（EGD-3）提供的方法，对该涡轮盘的低循环疲劳寿命进行了估算。
The LCF Ufe of the turbine disk is evaluated using the method provided by SPEY MK202 engine stress standard ( EGD - 3 ).
采用斯贝MK202发动机应力标准（EGD-3）提供的方法，对该涡轮盘的低循环疲劳寿命进行了估算。
The LCF Ufe of the turbine disk is evaluated using the method provided by SPEY MK202 engine stress standard ( EGD - 3 ).
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