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- Based on experimental data and finite element analysis results, a low-cycle fatigue life model is proposed for the powder metallurgy superalloys under multiaxial stress states. 在详细分析试验和有限元计算结果的基础上,提出了复杂应力状态下的低周疲劳寿命模型。
- The prediction model of coiled tubing fatigue life. 连续油管疲劳寿命预测模型的建立。
- A Low-Cycle Fatigue Life Model for Simplified Turbine Disk Simulation Specimens of Powder Metallurgy Superalloys 粉末冶金涡轮盘简单模拟件低周疲劳寿命研究
- Fatigue life model 疲劳寿命模型
- An Analytical Formula for Calculating Fatigue Life? 一个估算疲劳寿命的解析公式?
- A general life model adapted to both stress fatigue and strain fatigue is deduced, through analyzing the influence function of strain distribution on life. 本文通过应变分布对寿命的影响函数分析,导出了一种适用于应力疲劳和应变疲劳的通用寿命模型。
- 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。
- A factor of friction power is considered during fatigue,and a new model for predicting fretting fatigue life under low cycle load is presented based on a nominal stress method. 在低周疲劳寿命预测方法中,通过引入摩擦功因子,考虑微动作用对构件疲劳寿命的影响,对传统的名义应力法进行改进,以用于构件的低周疲劳寿命预测。
- The fatigue life of 45 normalied steel would be decreased by prestretching. 微量的预应变会降低正火45钢的疲劳性能。
- Based on the quasi-dynamic model, EHL theory and modificatory fatigue life calculation model, analysis software HBBA is complied and the calculation results meet the experimental data well. 以本论 文的准动力学模型 、弹流模型、疲劳寿命模型为理论基础,编制了 高速主轴球轴承分析软件HBBA,并对航空发动机 主轴推力角接触球 轴承进行 了计算和分析,计算结果与耐久性试验数据较为吻合。
- Fatigue life predicting system for tower crane is developed using the model of Client/Server, and the total scheme, architecture and main function design of the system is described. 摘要采用客户/服务器模型,开发出塔式起重机剩馀寿命评估系统,详细介绍了该系统的总体技术方案、体系结构及功能设计。
- Three parameters quantitatively describe the fatigue limit, the toughness and the characteristic fatigue life of material in the model and a convenient method to obtain the parameters was mentioned. 该模型中的三个参数分别反映了材料的疲劳极限、韧性以及特征疲劳寿命,同时给出了求解这些参数的方法。
- The results indicate that EMR can improve the fatigue life of structure, and can drive interference-fit fastener with large interference. 研究结果表明,电磁铆接技术能够提高结构疲劳寿命,能够安装大干涉量干涉配合紧固件。
- A mean strain or prestrain, as in Fig. 83, can under certain conditions reduce the subsequent fatigue life. 一个如图83所示的平均应变或预应变,在某种情况下,能够缩短以后的疲劳寿命。
- Thermal fatigue life of solder joints is predicted using the Coffin-Manson's empirical modified formula. 在此基础上,利用Coffin-Manson经验修正公式预报了焊点的热疲劳寿命。
- An artificial life model is built to simulate the symbiosis mechanism.It is shown that the improved genetic algorithm can converge rapidly by experiment. 文中使用人工生命方法建模仿真共生现象,结果表明,用共生方法改进过的遗传算法具有更快的收敛速度。
- And also the sensitivity analysis was done to the several key factors influencing the fatigue life of the vane. 并对影响其疲劳寿命的几种关键因素进行了敏度分析。
- A sort of efficient calculation method was developed for fatigue life prediction under random loading. 研究了一种用于随机载荷下试件疲劳寿命预估的有效计算方法。
- In recent years, how did SKF steel improve the ball bearing quality and fatigue life? 近年来瑞典SKF公司是如何提高其滚动轴承质量和寿命的?
- The effect of pre immersion time on corrosion fatigue life reduced with the increasing of stress amplitude. 在 30MPa下预腐蚀对连接件的疲劳寿命的影响作用比 5 0MPa下预腐蚀对连接件疲劳寿命的作用要明显。