橡胶密封件在飞机舱门结构中应用广泛,主要起到密封、隔音、保温等作用,对飞机的正常飞行及乘客的生命安全至关重要。实验建立了舱门橡胶密封件的有限元模型,分析了密封件在不同压缩量下的变形和应力分布规律,并对密封件直线段在不同压缩量下的压缩-回弹性能进行研究,分析包裹层、织物和型芯对橡胶密封件密封性能的影响。结果发现,仿真分析与实验吻合较好,研究结果对于橡胶密封件密封性能的设计和优化有重要作用。
Rubber seals are widely used in aircraft door structures,which play important roles on sealing,sound insulation and heat preservation.Aircraft door rubber seals are critical to the normal flight of the aircraft and the safety of the passengers.A finite element model for aircraft door rubber seals was built,and its deformation and stress distribution under different compression displacement were analyzed.Experimental research on the compression-resilience performance of straight line seal segments under different compression displacement were studied,and the effect of cladding,fabric and core on the seal performance of rubber seals were analyzed.The simulation analysis results agree well with the experiments.The effect of deformation and stress distribution on seal performances of rubber seals were obtained,which was of great significance for design and optimization of the seal performance of rubber seals.
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