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- 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。
- 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。
- 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。
- The fatigue life increases with decreasing modulus of surface layer in a power function with a negative exponent. 沥青面层的疲劳寿命随着面层材料模量的降低以负指数的幂函数形式增加;
- The fatigue life of two composites can be described by the Coffin-Manson relationship. 两种复合材料的疲劳寿命均符合Coffin-Manson公式。
- The fatigue life is calculated with local stress and strain method under multiaxial condition. 采用多轴应变下的局部应力应变方法进行疲劳寿命计算;
- The fatigue life of the composite structures contained delimitation flaw is highly depe... 含分层缺陷复合材料结构的疲劳寿命不仅与缺陷尺寸,而且与缺陷位置有关。
- The research results sho w that the fatigue life has been im provedgreatly and the fatigue crack gro ... 结果表明：激光冲击处理后，铝合金疲劳寿命显著提高、疲劳裂纹扩展速率大大降低。
- Ordinary triangular whorl root stress centralize and influence the fatigue life of the bolt seriously. 普通三角形螺纹根部应力集中较大,严重影响了螺栓的疲劳寿命。
- 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。
- The result shows that the fatigue life of autofrettage vessels can be increased by 8 times. 结果表明，经自增强处理者其疲劳开裂寿命可提高8倍。
- Based on the analysis of the effect of excitation force of vibration aging on the fatigue life of white cast iron parts, the selection gist for excitation force was determined. 从理论上分析了振动时效激振力对白口铸铁工件疲劳寿命的影响,确定了白口铸铁疲劳破坏工件振动时效激振力的选择依据。
- The fatigue life of the solder alloy followed the Coffin-Manson equation, from which relevant fatigue parameters were determined. 线性回归分析表明;该焊料的低周疲劳寿命满足Coffin-Manson经验关系式;由此给出了焊料在室温下的低周疲劳参数.
- The fatigue life of a truck frame, used in an opencut mine, is calculated by the method.The results show good agreement with pract... 用这种方法对我国某矿山使用的重型矿用汽车车架进行了疲劳寿命计算,计算结果与实际情况比较吻合。
- It was observed from the bending experiments that the influence of frequencies on the fatigue life of the solder interconnects is inapparent. 计算锡铅球所受每循环周期下的弯曲循环负载的累积应变能密度；
- TP 8294,Standard Test Method for Determining the Fatigue Life of Compacted Hot Mix Asphalt (HMA) Subjected to Repeated Flexural Bending[S]. 高英.;长大桥沥青混凝土铺装结构形式及施工工艺研究[R]
- A frequency domain method for predicting the fatigue life of notched specimens under random vibration loading is presented. 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。
- As a new surface peening method,high pressure waterjet peening(WJP) was used to improve the fatigue life of treated components. 高压水冲击强化是一种新的表面强化方法,通过改善零件的表面状态而提高疲劳寿命。
- In the analysis, the total strain amplitude as well as the rules of accumulative damage are used for the research of the fatigue life. 提出了一个用于计算非对称循环载荷下材料低周疲劳寿命的累积损伤模型和方法。
- Excessively long stroke impels few increase in pump efficiency and will effect the fatigue life of the whole pumping system. 而冲程过大时泵效提高的幅度不大,反而影响整个抽油机系统的疲劳寿命。
