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- The numerical method of fatigue analysis based on FEA is discussed. And the evaluation of fatigue life in bolster design has been given using I-DEAS. 讨论了基于有限元技术的疲劳分析数值方法,并用I-DEAS的疲劳寿命评估模块对货车转向架的摇枕进行了疲劳寿命评估。
- By fatigue test of some members of a steel truss bridge and a theoretical analysis of the residual fatigue life of the bridge, an evaluation of fatigue safety status of the steel truss bridge which is in accord with the fact is made. 通过对某钢桁梁桥构件的疲劳试验和对该桥的剩余疲劳寿命的理论分析,作出符合实际的疲劳安全状态评估。
- Evaluation of Fatigue Life of Orthotropic Steel Deck Plates 正交异性钢桥面板的疲劳寿命评估
- EVALUATION OF FATIGUE LIFE OF MEMBER CONNECTION ZONE FOR UNDERWATER STEELWORK 水中钢结构构件连接区域疲劳寿命评估
- Verification of the Load Spectrum for Freight Car Couplers and Evaluation of Fatigue Life of No.13 Couplers with Small Test Sample 用小试样验证货车车钩载荷谱及评估13号车钩疲劳寿命
- evaluation of fatigue life 疲劳寿命估算
- Corrosion results in decrease of metal fatigue life and overload can result in prolonging of fatigue life. 腐蚀会降低材料的疲劳寿命而超载则对疲劳寿命有增益作用。
- The fatigue crack growth rate is the core for predicting fatigue life by use of fatigue crack propagation(FCP) theory. 疲劳裂纹扩展率表达式是采用疲劳裂纹扩展理论预报疲劳寿命的核心。
- This paper research on key issues of application of fatigue life gage on long-span steel bridge fatigue monitoring. 本文就其应用于大型钢桥的疲劳损伤监测要解决的关键问题进行了研究。
- The fractographs of specimen are analyzed by SEM,and the mechanism of fatigue life improvement is discussed. 利用扫描电镜对试样断口进行了观察和分析,并对疲劳寿命提高机制进行了讨论。
- Application of fatigue model on the evaluation of instability of seafloor silt is discussed in this paper. 该文探讨疲劳模型在评价海底粉土不稳定性中的应用。
- The thesis provides fatigue life whose possibility is 95% or 50%. The analysis results of fatigue life and weak elements agree with fact. 本论文分析了该泵车可靠度为95%25和50%25的疲劳寿命,分析结果与泵车长期使用总结出的疲劳寿命基本吻合,且分析结果疲劳寿命薄弱部位在泵车实际工作中基本都产生过疲劳裂纹。
- The methods of fatigue life estimation are given, includinggeneral method, nominal stress method, DFR method and local stress-strain method. 论述了几种疲劳寿命计算方法,其中包括通用方法、名义应力法、结构细节疲劳额定值(DFR)法和局部应力应变法;
- The testing results show that the factor Dfc derived is an appropriate criterion for evaluation of fatigue damage for metal materials and welding joints. 验证试验结果表明,临界疲劳损伤因子D_(fe)是评定金属材料及焊接接头疲劳破坏的适宜依据。
- The fatigue test results show that the higher shock impedance of overlays,and the higher laser power density,the greater the increase of fatigue life of aluminum alloy. 疲劳试验结果表明:约束层冲击阻抗越大,激光脉冲功率密度越高,铝合金激光冲击处理后疲劳寿命的提高越显著。
- The relationship between damage variable D(K_1 ) and number of fatigue cycles (N) can be used to detect fatigue damage and to divine fatigue life tbr metal materials. 利用损伤变量D(K_1)和循环次数N的关系曲线,可以对材料进行疲劳损伤检测并对其疲劳寿命进行预测。
- Domestic and international research of fatigue damage mechanism,test technique and fatigue life prediction of inservice railway steel bridges is summarized and forecasted... 本文对目前国内外有关钢桥的疲劳损伤机理、检测技术及疲劳寿命预测的研究做了总结和展望。
- Bases on the aircraft structure fatigue life theory, consider the characteristics of small UAV, the model of fatigue life prediction for small UVA structure is established. 在飞机结构寿命理论的基础上,结合小型无人机机体结构特点,建立了小型无人机机体寿命分析方法。
- Song, P. S., and Shieh, Y. L., 2004,“Stop Drilling Procedure for Fatigue Life Improvement”, International Journal of Fatigue, Vol. 26, No. 12, pp. 1333-1339. 徐光良,1996年5月28日,压痕法延长金属材料疲劳寿命之研究,中正理工学院,硕士论文,第37-39页。
- I attempted an honest evaluation of my own life. 我试图如实地评价我自己的一生。