Abstract—

To study the influence and selection of rational elastic-dissipative parameters for under wing pylon-mounted engine suspension, a mathematical model of aeroelasticity of a large-sized transport aircraft has been developed by taking into account the kinetic moment of the engine rotors and specially designed engine attachment points to the pylons. It is shown that the elastic-dissipative parameters of the attachment points, which implement the concept of a released engine, have a significant effect on the integral aeroelastic and strength characteristics of the aircraft. Schematic diagrams of the engine mounts to the pylon are proposed. The usefulness of the concept of a released engine for increasing aeroelastic stability and reduce the level of fatigue damage of the aircraft structural elements has been proved.

中文翻译：

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机翼下挂架悬挂式发动机悬架的弹性耗散参数对飞机气动弹性和强度特性的影响的研究

摘要-

为了研究机翼吊架下发动机悬架合理的弹性耗散参数的影响和选择，通过考虑发动机旋翼的动力矩，开发了大型运输机的空气弹性数学模型，并对其进行了专门设计发动机附件指向吊架。结果表明，实现释放发动机概念的连接点的弹性耗散参数对飞机的整体气动弹性和强度特性有重要影响。提出了将发动机支架固定在挂架上的示意图。已经证明了释放发动机的概念对于增加气动弹性稳定性和减小飞机结构元件的疲劳损伤水平的有用性。