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舱门密封件接触行为仿真分析 被引量:1

Simulation Analysis of Contact Behavior of Door Seals
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摘要 现代飞机普遍采用气密舱设计。对于增压区舱门,普遍采用密封件密封。密封件的设计既要保证舱门关闭时气密性良好,又要保证舱门开关过程中受力合理。密封件过度的挤压变形易产生过大的接触力和摩擦力,导致开关门手柄力过大。为了分析密封件接触行为问题,基于非线性不可压缩Mooney-Rivlin本构理论,建立了舱门典型密封结构有限元模型,计算了在舱门开闭过程中此密封件的变形状态、接触力分布和摩擦力。结果表明:舱门关闭情况下,此密封件平均法向接触力约为1160N/m,密封件挤压产生的摩擦力约为348N/m。 Modern aircraft generally adopts airtight cabin design.Seals are commonly used for doors in pressurized area.The design of the seal must ensure that the airtightness of the doors is closed and the force of the doors in the process of opening and closing is reasonable.Excessive squeezing deformation of the seal may easily generate excessive contact force and friction force, resulting in excessive force of the door handle.In order to analyze the contact behavior of the seals, based on the nonlinear incompressible Mooney-Rivlin constitutive theory, a finite element model of the typical seal structure of the door was established.The deformation state, contact force distribution and friction force of the seal during the opening and closing of the door were calculated.The results show that when the door closes in the cabin, the average normal contact force of the seal is approximately 1160 N/m, and the friction generated by the seal extrusion is approximately 348 N/m.
作者 徐锦锦 XU Jin-jin(Shanghai Aircraft Design and Research Institute,Shanghai 201210,Chin)
出处 《科技视界》 2018年第16期202-202,211,共2页 Science & Technology Vision
关键词 舱门密封 有限元 接触行为 Door Seals Finite Element Contact Behavior
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