An engine external pipeline connection structure with vibration damping function

Abstract

The invention belongs to the field of engine external pipeline structures, and particularly relates to an engine external pipeline connecting structure with a damping function. The engine external pipeline connecting structure comprises a pipeline connecting device, two first shells of a tubular structure and two second shells of a cylindrical structure. Two stages of damping of the structure is formed by the first shell and the second shell, the problem that an engine pipeline is large in sudden vibration can be effectively solved, and especially the problems that in the special environmentsof engine rack trial run or flying / launching matching or the like, since the space structure and the cartridge receiver structure are limited, no pipeline damping structure or pipeline support can beadded and pipeline vibration suddenly happens can be effectively solved.

Description

technical field [0001] The present application belongs to the field of engine external pipeline structure design, and in particular relates to an engine external pipeline connection structure with vibration damping function. Background technique [0002] The external piping of aero-engines, gas turbines and other engines will cause piping vibration problems caused by cavitation, fluid pressure pulsation, friction or leakage, etc., which will lead to loose piping connections, failure of sealing, oil leakage and reduced piping life. . Usually, the method to reduce pipeline vibration is to add pipeline damping structure or high-priced pipeline bracket to improve the support rigidity. [0003] In the design process of the external pipeline, the vibration calculation is more complicated, and many cases of excessive vibration are difficult to find during design. The problem of excessive vibration is only exposed in specific environments such as engine bench test or flying engine ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide an engine external pipeline connection structure with a vibration damping function to solve the problem of large sudden vibration of the engine pipeline, especially in specific environments such as engine bench test or flight matching. Sudden pipeline vibration problems when the space structure and casing structure are limited and it is impossible to add pipeline damping structures or increase pipeline supports.

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