典型密封元件的失效分析与失效过程研究
发布时间：2018-10-29 15:14
【摘要】：飞机整体油箱结构的密封性对飞机安全性和续航能力有很大影响,所以密封胶失效分析和失效过程研究就显得相当重要.为了研究密封胶的失效,根据密封胶的受力特点,本文设计了典型元件的密封试验(平板型和T型),通过试验得到了这两种结构的失效载荷和最大载荷.同时,利用有限元模拟软件ABAQUS对试验进行了模拟计算,使用cohesive模块实现对密封胶层的模拟.通过观察胶层失效过程,得到了胶层失效后的破坏路径,找到了容易发生泄漏的位置,并给出了失效载荷与最大载荷的关系.通过对比试验结果和模拟计算结果,验证了有限元模拟分析的可靠性,并对结果进行了讨论.
[Abstract]:The sealant failure analysis and failure process study are very important because of the great influence of the aircrafts' overall fuel tank structure on the aircraft safety and the capability of the aircraft. In order to study the failure of sealant, according to the mechanical characteristics of sealant, this paper designs the sealing test of typical components (flat type and T type), and obtains the failure load and maximum load of these two structures. At the same time, the finite element simulation software ABAQUS is used to simulate the test, and the cohesive module is used to simulate the sealing layer. By observing the failure process of the rubber layer, the failure path after the failure of the rubber layer is obtained, the location where the leakage is easy to occur is found, and the relationship between the failure load and the maximum load is given. The reliability of the finite element simulation analysis is verified by comparing the experimental results with the simulation results, and the results are discussed.
【作者单位】： 西北工业大学工程力学系;
【分类号】：O345;;V214.7
本文编号：2298053
[Abstract]:The sealant failure analysis and failure process study are very important because of the great influence of the aircrafts' overall fuel tank structure on the aircraft safety and the capability of the aircraft. In order to study the failure of sealant, according to the mechanical characteristics of sealant, this paper designs the sealing test of typical components (flat type and T type), and obtains the failure load and maximum load of these two structures. At the same time, the finite element simulation software ABAQUS is used to simulate the test, and the cohesive module is used to simulate the sealing layer. By observing the failure process of the rubber layer, the failure path after the failure of the rubber layer is obtained, the location where the leakage is easy to occur is found, and the relationship between the failure load and the maximum load is given. The reliability of the finite element simulation analysis is verified by comparing the experimental results with the simulation results, and the results are discussed.
【作者单位】： 西北工业大学工程力学系;
【分类号】：O345;;V214.7
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