您要查找的是不是：
- The results show that,in the mechanical bend fatigue test and three point bend test,the underfill material of U1 and U2 both can improve the mechanical bend reliability of BGA assemblies,and U1 material performs better. 结果发现在机械弯曲可靠性试验中,U1、U2材料的填充均能提高焊点的机械弯曲可靠性,并且U1的效果更好。
- The piston rod of family sedan's rear snubber fractured duringearlier stage of rotary bending fatigue test. 家轿后减振器活塞杆在进行旋转弯曲疲劳试验时出现早期断裂。
- Abstract： The piston rod of family sedan’s rear snubber fractured during earlier stage of rotary bending fatigue test. 摘 要： 家轿后减振器活塞杆在进行旋转弯曲疲劳试验时出现早期断裂。
- At present,tuning-folk resonance plate structure is common used in crankshaft bending fatigue test bench in domestic diesel engine industry. 目前,国内柴油机行业普遍使用的曲轴弯曲疲劳强度试验台架,均采用音叉共振板结构。
- pure bending fatigue testing machine 纯弯曲疲劳试验机
- Analysis of the Load Calibration Method Applied to Resonant Bend Fatigue Test System for Crankshaft 谐振式曲轴弯曲疲劳试验系统载荷标定精度分析
- Tension and bending fatigue tests were carried out to investigate the fatigue behavior of polymethyl methacrylate for edge attachment element at different temperatures. 摘要研究了有机玻璃边缘连接元件在不同温度下的拉伸和弯曲疲劳特性。
- bend fatigue testing 弯曲疲劳测试
- Bending Fatigue Test on PE Pipes Used for Circular Cage Floating Collars 圆形网箱框架用PE管材的弯曲疲劳试验
- Bending fatigue test for crankshaft of air compression machine based on FEA 基于有限元分析的空压机曲轴弯曲疲劳试验
- Conduct material Fatigue Testing and Thermal stress test. 进行材料疲劳测试和热应力测试。
- With strength increases, the potential for further improving bend fatigue strength declined, while that of bend fatigue life improves. 随着结构强度的提高，弯曲疲劳强度的提高幅度呈下降趋势，但疲劳寿命的提高幅度呈上升趋势。
- By strengthening under low amplitude loading,bend fatigue strength and life of gear teeth can be increased by 3.97 and 109 percents,respectively. 经过低幅载荷强化;该齿轮轮齿的弯曲疲劳强度提高了3.;97%25;弯曲疲劳寿命提高了109%25。
- By fatigue test of bolt material,the stress-strain life curve is obtained. 通过螺栓材料的疲劳试验,获得了材料的应力应变寿命曲线;
- The S-N curve, the mathematical relationship of bend fatigue strength or life to strengthening loads and strengthening cycles, the maximum increments of fatigue strength and life were obtained by experimental digital processing. 通过对试验数据的处理，得到了两种结构弯曲疲劳强度的S-N曲线、弯曲疲劳强度和疲劳寿命与强化载荷、强化次数之间的数学关系，以及经过低载强化后弯曲疲劳强度和疲劳寿命提高的最大幅度。
- The early fracture of the handle of the sedan door lock during the fatigue testing has been studied. 轿车门外锁止手柄在疲劳试验时发生早期断裂。
- The bending fatigue strengths of ADI gears treated with different processes were test and compared. 对各种状态的奥贝球铁齿轮的弯曲疲劳强度进行了试验研究。
- Based on the program load spectrum, intensified fatigue test for rearaxleare made. 在编制程序载荷谱的基础上,对后桥壳体进行了强化疲劳试验。
- Test engineers with experience in NVH, stress and fatigue testing, instrumentation, data acquisition, and data processing, as well as the modal test experience. 噪音和应力疲劳测试工程师必须具备传感器安装，数据采集，数据处理，和模态测试的经验。
- Pb-free solder;BGA;thermal cycling;dynamic fatigue tests;electrical analysis. 关键词:无铅焊锡;球格阵列构装;冷热循环试验;动态疲劳试验;电性分析
