前言 在现代航空上,橡胶密封件广泛地用作各种附件的活动密封和固定密封。本文对涡喷型发动机尾喷口加力作动筒液压系统的密封圈,通过自然老化、人工加速老化、录取飞行和长期试车的径向应力松弛等性能研究,探讨了它的油封寿命。 加力作动筒作为发动机的附件需要装配油封,贮存待用。装配的密封圈要经受环境因 Foreword In modern aviation, rubber seals are widely used as movable seals and fixed seals for various accessories. In this paper, the sealing ring of the hydraulic system of the vortex nozzle at the tail nozzle of the vortex injection engine was studied through the research on the properties of natural aging, artificial accelerated aging, flight-taking and long-term radial stress relaxation. Afterburner as an engine attachment needs to be equipped with an oil seal, stored for future use. Assembly of the ring to withstand environmental factors