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.
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.
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.
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.
本论文致力于建立一套较完整的翻车机主梁疲劳分析及寿命预测方法，解决实际工程中的结构优化设计与制造工艺质量问题。
In this paper, we establish a whole analyzing dumpling main girder fatigue and forecasting life way, and solve structure optimize design and technical quality questions in the actual engineering.
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。
At last, the corresponding analysis of surface structure and testing of fatigue life were given.
论文在对车架结构模型构建的基础上，将道路模拟试验、可靠性分析理论和有限元分析方法等结合起来，分析其可靠度及疲劳寿命。
In this paper, together with road simulation test, reliability theory and FEM, the fatigue life and degree of reliability were analyzed based on the construction of the frame.
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.
试验结果表明：表面合金涂层能显著提高合金铸铁齿轮的接触疲劳寿命，文中同时分析了合金涂层的组织结构和性能。
The results showed that the alloy coatings can increase significantly the contact fatigue lifetime of alloy cast-iron gears. The microstructure and properties of coatings were also analysed.
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.
通过对结构应变进行分析，可获取结构的危险截面和疲劳程度等信息，并可对结构的寿命进行估计。
By analyse structure's strain, we can gain lots of information including the danger cross section and fatigue level. Also we can estimate the structure's life.
通过对超孔隙水压的分析和疲劳试验研究，探讨了空隙水对路面结构的破坏形式和疲劳寿命的影响。
Through analysis and fatigue test research to the super - void - water pressure, there is a new cognition that is the failure form and the influence in life of pavement structure by void - water.
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.
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.
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.
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