| 1. | Recommended practice for vibration stress relief on welding structure 焊接构件振动时效工艺.参数选择及技术要求 |
| 2. | Because of high sharp peak , vibration stress is big , and the maximum stress achieves 550mpa 由于油缸冲击载荷有比较大的峰值,泵车动应力比较大,最大值达到550mpa 。 |
| 3. | Four stresses levers are achieved through optimizing design under surrounding temperature or vibration stress alone affected 分别在环境温度或振动应力单独作用下,各自优化出四个应力水平。 |
| 4. | Railway rolling stock . behaviour of rolling stock ' s seats at statics stress , fatigue stress , vibrations stress and shocks stress 铁路车辆.在静态应力疲劳应力振动应力和冲击应力下铁路车辆座位的特性 |
| 5. | Fourthly , proposed and researched optimizing design mode of constant stress accelerated life test plans under the temperature and vibration stresses 第四,提出并研究了电连接器在环境温度和振动应力综合作用下的加速寿命试验方案的优化设计模型。 |
| 6. | So , there are two means to solve the problem that vibration stress is too big . one is to lower the dynamic load ' s peak , the other is to adjust off working frequency and inherent frequency 因此,可以从减小油缸冲击载荷的峰值和调开油缸工作频率与泵车固有频率两个角度解决动应力较大的问题。 |
| 7. | This dissertation analyzed the y11x series of electrical connectors " failure mode and mechanism under temperature and vibration stresses , then made physics models of failure and statistic 本文以y11x系列圆形电连接器为研究对象,对电连接器失效模式、失效机理和可靠性建模进行了系统、深入的研究。 |
| 8. | Fourthly , through the accelerated life test of electrical connectors under vibration stress and statistical analysis of test data , verified that the reliability statistical model of electrical connectors is correct 第四,通过对电连接器进行振动应力下的加速寿命试验,并对试验数据统计分析,验证了电连接器可靠性统计模型的正确性。 |
| 9. | Abstract : as the heart of twt , the structure stability of grided electron gun directly affect pulse output performance of twt , and the structural reliability under vibration stress are especial - ly important for today ' s manufacturers 摘要:栅控电子枪作为行波管的“心脏” ,其结构的稳定性直接影响着管的脉冲输出性能,特别是在振动应力下的结构可靠性更是当今生产单位关注的重点。 |
| 10. | In this dissertation , the model y11x - 2221 electrical connector as the object , the failure mechanism and reliability test method and test data statistical analysis method of electrical connectors under vibration stress has been research 本文以y11x ? 2221圆形电连接器为研究对象,分析了电连接器在振动应力作用下的失效机理,对电连接器在振动环境下的可靠性试验及试验数据的统计分析进行了研究。 |