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Design and application of accelerated life test of grating ruler based on step stress loading

机译:基于台阶应力载荷的光栅尺加速寿命试验的设计与应用

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摘要

Combined with the actual project, a grating ruler accelerated life test device is designed, which can simulate the actual loads, including temperature, humidity and speed stress. An accelerated life test scheme based on stepped stress loading is proposed, and 6 grating rulers are tested based on time-censored test method. An accelerated life model based on Weibull distribution used for evaluating the lifetime is established. Related experimental techniques also can be typical application cases for innovative practical teaching.
机译:结合实际项目,设计了一种光栅尺加速寿命测试装置,可以模拟实际负载,包括温度,湿度和速度应力。 提出了一种基于阶梯式应力载荷的加速寿命试验方案,基于时间缩短的试验方法测试6个光栅尺。 建立了用于评估寿命的基于Weibull分布的加速寿命模型。 相关实验技术也可以是创新实践教学的典型应用案例。

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