本文分析几种寿命估算的方法。
并计算了热寿命估算参数。
疲劳寿命估算。
用局部应力应变法进行疲劳寿命估算，必须使用应变—寿命曲线。
The strain-life curves are essential in order to apply the local stress strain approach for fatigue life prediction.
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.
载荷谱是起重机分级、结构疲劳强度试验研究和寿命估算的重要依据。
Load spectra are important basis on which the classification of cranes, the experimental study of fatigue limit of the crane framework, and the evaluation of its life limit are based.
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.
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.
给出了采用热点应力法进行铸钢节点环形对接焊缝疲劳寿命估算的全过程。
The paper presents the life evaluating process of girth butt welds by hot spot stress method and the calculation methods of hot spot stress range.
针对过盈螺纹的疲劳寿命估算进行了工作，求解应力是寿命估算的第一步。
An improved method of stress analysis about bolt screw with interference fitting is provided as the first step of fatigue life-prediction for the joint.
还讨论了等损伤线的表达式，斜率变化和二级载荷下的疲劳寿命估算等问题。
The problems of quantitative expression of equivalent damage lines, the slope change of the lines and life prediction are also discussed.
分析了符合传感器网络MAC算法中节点周期性侦听要求的节点寿命估算问题。
The lifetime estimation issue is analyzed with consideration to the periodical listen required by common WSN media access control (MAC) algorithms.
本文根据线性累积损伤理论，给出了农机焊接件在谱载荷作用下的寿命估算方法。
According to the linear cumulative damage theory, a method for estimating life for welding structure of farm machinery acted under load spectrum is given.
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.
这种方法在许多方面得到应用，如结构设计、强度分析、寿命估算和断裂安全分析等。
It has been found applications in many aspects, such as structure design, strength analysis, life estimate, and fracture safety analysis, etc.
在运用断裂力学模式所建立的故障模型基础上，该法用铁道部部颁换轨标准处理寿命估算。
Based on a failure model of fracture mechanics pattern, this new method deals with the life estimation in the light of the standard promulgated by the Railway Ministry for rail replacement.
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.
给出了现场条件下液压元件寿命估算的数学模型和系统目标清洁度与寿命延长系数的关系。
Advanced the mathematical model of the hydraulic components life estimation method and established the relations of the system target cleanliness to the life extension coefficient.
针对新的潜艇用980钢的焊接工艺特点，给出用于潜艇疲劳扩展寿命估算的初始裂纹尺度。
Aimed at the technical characteristic of the 980 steel which was used on the submarine, we can give the length of initialized crack to calculate the fatigue life of submarine structure.
阐述了基本轨道应用分析理论，包括星下点轨迹计算、可见性分析、覆盖评估和轨道寿命估算。
Expatiated on the application theory of basic orbit, including subastral point calculation, visibility analysis, coverage evaluating and spacecraft life-span estimate.
这种应变—寿命曲线适用于结构钢和软钢等延性材料多轴疲劳下的局部应力—应变法寿命估算。
The derived curves are convenient and applicable to ductile materials such as structural steels and mild steels.
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.
还列表给出车轮钢的全部应变疲劳参数和与之对应的静态参数，可供设计选材，寿命估算时使用。
Moreover, this paper lists both static and strain fatigue parameters of this material for material design, selecting and life prediction.
所建立的模型形式简单，参数少，易测量，具有明确的物理意义，对锅炉的寿命估算有参考价值。
The research results show that the parameters in the model have clear physical meaning and can easily be determined. It will provide an effective means for the boiler"s life estimate."
因此有必要通过实验及理论研究等工作，对公路桥梁伸缩装置进行疲劳破坏机理分析和疲劳寿命估算。
Therefore, it is necessary to analyze the mechanism of the fatigue damage of bridge expansion device and estimate its fatigue life by theories and experiment.
通过试验和理论研究改进了局部应力应变寿命估算法 ，使之具有高的工作效率和较好的寿命预估精度。
The local stress strain method modified by us is more accurate than the conventional local stress strain method, This method is provided for disk life design.
随机疲劳、混沌疲劳及复合材料疲劳寿命估算属疲劳学研究的三个重要前沿．给出了疲劳损伤的动态概率分布；
Stochastic fatigue, chaotic fatigue and the fatigue life estimation of the composite material are three important aspects in fatigue research. The fatigue damage probability distribution was given.
可靠性设计是一种新的设计方法。这种方法在许多方面得到应用，如结构设计、强度分析、寿命估算和断裂安全分析等。
Reliability design is a kind of new design method. It has been found applications in many aspects, such as structure design, strength analysis, life estimate, and fracture safety analysis, etc.
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.
对海洋平台用高强度钢焊接接头多次补焊的疲劳性能进行试验研究，给出采用威布尔分布下的寿命估算式及R—S—N曲线。
Based on an experimental study of multiple repairing welded joints on high strength offshore structure steel, the R-S-N curves and life estimation equations under Weibull distribution are presented.
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