摘要
目的研究航空光学器件的损伤破裂机理和加速寿命试验方法。方法从理论上对航空光学器件的损伤破裂机理进行研究,对不同机理产生的原因、表现及预防措施进行分析。分析大气摩擦和太阳辐射因素对航空光学器件表面温度的影响,在Arrhenius模型理论基础上,以加速寿命试验方法计算航空光学器件的寿命。结果推导出了航空光学器件寿命的计算公式。结论航空光学器件的损伤破裂主要归因于脆性断裂失效和疲劳断裂失效。
Objective To explore the fracture mechanism of aviatic optical devices and study the accelerated life Test. Methods Theoretical studies were performed using optical devices for aviation rupture mechanism of injury; the causes of different mechanisms, performance and preventive measures were analyzed. Results The atmospheric friction and solar radiation factors on the optical surface air temperature was analyzed, and the aviation optics lifetime was calculated by accelerated life test method based on the Arrhenius model theory. Conclusion Brittle fracture injury rupture failure and fatigue failure is the main risk factors of aviation optics fracture.
出处
《装备环境工程》
CAS
2013年第6期29-32,共4页
Equipment Environmental Engineering
关键词
航空光学器件
破裂机理
寿命分析
模型计算
aviatic optical devices
fracture mechanism
life analysis
model accelerate