With the welding spot fatigue lifetime pre-estimation method, by combination of the finite element analysis and stress calculation, the welding spot fatigue damage under actual load can be calculated.
采用焊点疲劳寿命预估方法，通过有限元分析并结合应力计算，即可计算出实际载荷工况下的焊点疲劳损伤。
The thought of this paper is to discuss on and analysis to dynamic response of HSMS under impact load, and estimate its mean life based on noted stress fatigue design method.
本文的主导思想是讨沦和分析冲击载荷下螺旋弹簧质量系统的动态响应，并应用名义应力疲劳设计方法估计其平均寿命。
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。
A analysis method of fatigue life reliability for composite structures is developed based on residual strength degradation theory.
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。
Fatigue analysis for civil aircraft fuselage typical truss joint in serving environment was discussed, in which detail fatigue rating (DFR) method in corrosive environment was used.
采用腐蚀条件下的细节疲劳额定值(DFR)方法对民机机身典型长桁机加接头结构进行了综合环境下的疲劳分析。
The fatigue damage analysis method which is based on fatigue life model is briefly introduced.
并简要介绍了按疲劳寿命模型分析疲劳可靠性的方法。
A new method for calculating amplitudes of the local stress and strain in the strain fatigue analysis of aluminum alloy members is presented in the paper.
提出了一种在铝合金构件应变疲劳分析中，计算局部应力和应变变程的新方法。
In this paper, Bayesian method for statistical analysis of fatigue data for Marine materials is discussed.
讨论了舰船材料疲劳统计分析中的贝叶斯方法。
The stress concentration analysis was done by the finite element method and boundary element method. The fatigue strength and the strength under the static load were calculated.
对螺纹槽管进行了疲劳强度计算，并采用边界元和有限元法对螺纹槽管的应力集中进行了数值分析及静载强度计算。
A new method for strain-based fatigue reliability analysis is constructed by considering interference between the random fatigue strain applied and capacity histories.
应用随机循环应变载荷-强度干涉模型，建立了基于应变的疲劳可靠性分析新方法。
Depending on the reliable design theroy of fatigue strength, the paper deals with the analysis method between drum and grinding head of a ball mill.
根据疲劳强度的可靠性设计理论，对球磨机的磨头与筒体法兰结合面处的联接螺栓进分了抗疲劳分析，建立了一套可分的设计理论和机算方法。
The relative theory and methods on the analysis of the fatigue and fracture of mechanical components by means of the finite element method are discussed.
系统阐述利用有限元法对机械结构零部件进行疲劳断裂分析的相关理论和方法。
The fatigue analysis was carried out by using finite element method. And the analysis result was assessed.
用有限元分析的方法对贮料罐进行疲劳分析，并对分析结果进行评定。
In response to the complexity of calculation for failure probability regarding fatigue crack growth life, a method for reliability analysis based on neural network response surface was presented.
针对疲劳裂纹扩展寿命失效概率计算的复杂性，提出基于神经网络响应面的可靠性分析方法。
A reliability analysis method on the fatigue lives of interference fit or coldworking strengthened parts is presented.
提出了一种处理钉孔挤压强化或干涉配合强化后元件疲劳寿命的可靠性分析方法。
The 3-d finite element model of bolt is calculated by the method of contact analysis, and the fatigue strength of bolt is checked.
并采用接触分析法对螺栓的应力应变进行了三维有限元计算，对螺栓的疲劳强度进行了校核。
The paper discusses the failure mechanism of structural system subjected to dead and fatigue load and gives the method of reliability analysis considering static strength and fatigue.
具体分析了结构系统在静载和疲劳载荷作用下的失效机理以及各失效模式之间的相关性，给出了在静载和疲劳载荷作用下结构系统的可靠性分析方法。
Hot spot stress analysis is the most popular method in predicting fatigue life of welded structures.
指出热点应力法是当今焊接疲劳寿命预测的最热门方法。
Failure analysis of side rail box imitating chief beam of metallurgy crane was studied. Cause of fatigue failure and improving method were given.
介绍了冶金起重机金属结构偏轨箱形模拟主梁的疲劳失效分析研究结果，提出疲劳失效的原因及改进措施。
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.
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。
The fatigue life is obtained by using specimens without crack and by a special analysis based on local stress-strain method in which remembrance characteristics are considered.
采用无裂纹缺陷试件进行疲劳试验得到试件的疲劳寿命，同时利用考虑了记忆特性的局部应力应变法对试件的疲劳寿命进行定量分析。
Based on residual strength interference model and life interference model, a sensitivity analysis method on reliability was proposed for the fatigue crack growth life of powder metallurgy materials.
结合粉末冶金材料含有非金属夹杂裂纹的特点，以裂纹扩展寿命可靠性分析的剩余强度模型与寿命干涉模型为基础，建立了多夹杂裂纹扩展的可靠性敏度分析模型。
Through the study and analysis of this paper, it will offer the important basis for the method of fatigue design by hot spot stress amplitude.
通过本文的研究分析，基本掌握了三种节点的应力分布规律，将会对用热点应力幅建立疲劳计算方法提供依据。
Numerical method for crack extension analysis based on fatigue fracture process of rock materials;
工程控制爆破 ，要研究岩石的定向断裂的裂纹扩展。
Numerical method for crack extension analysis based on fatigue fracture process of rock materials;
工程控制爆破 ，要研究岩石的定向断裂的裂纹扩展。
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