Small aero-engine multi-point rubbing fault simulation experiment device

An aero-engine and experimental device technology, applied in the field of aero-engines, can solve problems such as difficult simulation, large differences in rubbing failures, and inability to simulate engine working conditions, and achieve the effect of ensuring safety and ensuring safety.
CN108709748BActive Publication Date: 2019-11-08南京领航智能航空科技有限公司
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南京领航智能航空科技有限公司
Publication Date
2019-11-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A small aircraft engine multi-point rubbing fault simulation experiment device includes a rotor system, a drive system, a rubbing system, a support system, and a measurement and control system. The rotor system adopts a centrifugal compressor and a leaf disc integrated structure axial flow turbine, which is consistent with the real structure of the small aircraft engine; the drive system includesa motor, a speed increaser and a magnetic powder brake; the rubbing system includes a compressor rubbing structure, a turbine rubbing structure and a rotating shaft rubbing structure, wherein each structure is an independent structure, and the structures can be combined with each other to realize multi-position and multi-modal coupling rubbing; the measurement and control system includes a motor rotating speed controller, a motor comprehensive protector, a data collector, a displacement sensor and a vibration acceleration sensor, wherein the motor comprehensive protector can prevent damage tothe motor under a high load. The invention can realistically simulate multi-type rubbing faults of the small aircraft engine rotor system at multiple locations, and can be used to study the vibrationresponse of the small aircraft engine under a plurality of frictional coupling effects.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of aeroengines, in particular to a small aeroengine rotor failure simulation experiment device. Background technique

[0002] Small aeroengines have the characteristics of small size, light weight, and high thrust-to-weight ratio. In recent years, they have been widely used in small aircraft such as drones, target drones, and missiles. In order to improve the thrust and efficiency of the engine, the gap between the rotor and the stator of the engine is getting smaller and smaller. When the rotor vibrates beyond the allowable gap, the rotor and the stator will rub against each other. Since small aero-engines generally rotate at a relatively high speed, friction between the engine rotor and the stator will cause severe vibration of the whole engine, which usually leads to serious flight accidents.

[0003] Common rubbing forms of aeroengine rotor and stator include single-point rubbing, multi-point rubbing, p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More