| 朱辰,邢新侠,蔡舒阳,李云仲.飞艇蒙皮缝线光老化试验研究[J].装备环境工程,2013,10(6):56-59. ZHU Chen,XING Xin-xia,CAI Shu-yang,LI Yun-zhong.Research on Airship Envelope Suture by Light Aging Test[J].Equipment Environmental Engineering,2013,10(6):56-59. |
| 飞艇蒙皮缝线光老化试验研究 |
| Research on Airship Envelope Suture by Light Aging Test |
| 投稿时间：2013-07-06 修订日期：2013-08-02 |
| DOI：10.7643/issn.1672-9242.2013.06.013 |
| 中文关键词: 蒙皮缝线 环境因素 光老化试验 断裂强力 |
| 英文关键词:envelope suture environmental factor light ageing test breaking strength |
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| 中文摘要: |
| 目的 研究飞艇蒙皮缝线的光老化规律并确定其有效期。方法 在辐照强度为0.35W/m2@340nm，温度为77℃，相对湿度为70%，2h内照射1.5h、喷淋0.5h的条件下，采用氙灯光照进行30天的加速老化试验。通过测量飞艇蒙皮缝线试验后的断裂强力，计算得到飞艇蒙皮缝线的断裂强力下降率，评定蒙皮缝线的抗老化性能。结果经过16天的光老化试验，飞艇蒙皮缝线的断裂强力下降率达20％；试验30天后，缝线出现明显裂纹，断裂强力下降率达80％。结论 随试验时间的增加，飞艇蒙皮缝线的力学性能下降的速率逐渐增大，飞艇蒙皮缝线在试验条件下的有效期为16天。 |
| 英文摘要: |
| Objective To study the light aging law and to determine the validity period of the airship envelop suture.Methods Under conditions of radiation intensity0.35W/m2@340nm, temperature77℃, relative humidity 70%, irradiation 1.5h and spray0.5h in2h, the xenon lamp light accelerated aging test was conducted for30days. The breaking strength of envelope suture was measured to calculate the breaking strength decline rate after light aging test. The aging resistant properties were evaluated by the breaking strength decline rate.ResultsThe breaking strength of airship envelop suture decline rate was20% after16days of light aging test, and the breaking strength decrease rate was 80%, and further more crack appeared on the suture after30days of test.Conclusion The decline rate of envelope suture mechanics performance increased with the test time, and the airship envelop suture was valid for16days under the test conditions. |
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