Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Vibration control experiment platform for aero-engine

An aero-engine and experimental platform technology, which is applied in the direction of engine testing, vibration testing, machine/structural component testing, etc., can solve problems such as not being able to meet further requirements, achieve low difficulty in transformation, avoid failure of experimental results, and improve the overall structure Scientific and reasonable effect

Inactive Publication Date: 2016-05-11
SUZHOU DONGLING VIBRATION TEST INSTR +1
View PDF9 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing experimental platform for research on vibration control of aero-engines simplifies aero-engines into different forms of rotor systems, which are used to study the dynamic response characteristics of aero-engines under various single or these few factors, and play a role in promoting the development of high-performance aero-engine technology. It plays an important role and has accumulated a large number of excellent results, but it can no longer meet the further research needs of multi-factor coupling vibration response characteristics that are more consistent with the actual operation of aero-engines.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vibration control experiment platform for aero-engine
  • Vibration control experiment platform for aero-engine
  • Vibration control experiment platform for aero-engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1. Research on the vibration characteristics of high-pressure rotors of aero-engines:

[0041] Start the second driving motor 22, the power output by the second driving motor 22 is transmitted to the high-pressure rotor through the transmission system near the output shaft and the second coupling 7 aero-engine, thereby driving the rotation of the high-pressure rotor system 12, simulating the high-pressure rotor of the aero-engine Operation; by the capacitive displacement sensor 8 installed on the second drive motor 22 output shaft and the connecting shaft of the outer rotor of the aeroengine, it is used to measure the axial runout and radial runout of the rotating shaft. The three-way acceleration sensors on casing II, stage 6 casing V, combustion chamber casing VI and high-pressure turbine casing VII collect vibration acceleration signals, and connect the sensor output lines to the data acquisition system, which converts the collected signals into digital Af...

Embodiment 2

[0042] Embodiment 2. Research on the vibration characteristics of the low-pressure rotor of the aero-engine:

[0043] Start the first drive motor 21, the power output by the first drive motor 21 is transmitted to the low-pressure rotor system 11 through the output shaft and the first coupling 6, thereby driving the low-pressure rotor system 11 to rotate, simulating the operation of the low-pressure rotor of an aeroengine, and the low-pressure rotor The operating speed is 300r / min; the capacitive displacement sensor 8 installed on the output shaft of the first drive motor 21 and the connecting shaft of the inner rotor of the aeroengine is used to measure the axial runout and radial runout of the rotating shaft; The three-way acceleration sensors on the 2-3 stage casing II, the 6 stage casing V, the combustion chamber casing VI and the high-pressure turbine casing VII corresponding to the 5 support bearings collect vibration acceleration signals, and connect the sensor output lin...

Embodiment 3

[0044] Embodiment 3. Research on the vibration characteristics of the whole machine of the aero-engine:

[0045] Start the first and second motors at the same time, and the two motors rotate forward synchronously to simulate the operation of the dual-rotor system of the aero-engine; the speed of the low-pressure rotor is 0-300r / min, and the speed of the high-pressure rotor is 0-1500r / min A capacitive displacement sensor 8 on the output shaft of the driving motor 21, the connecting shaft of the inner rotor of the aeroengine and the connecting shaft of the outer rotor is used to measure the axial runout and radial runout of the rotating shaft; The three-way acceleration sensors on the 2-3 stage casing II, the 6 stage casing V, the combustion chamber casing VI and the high-pressure turbine casing VII collect vibration acceleration signals; connect the sensor output line to the data acquisition system, and the data acquisition system will After the collected signal is converted in...

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

PUM

No PUM Login to View More

Abstract

A vibration control experiment platform for an aero-engine comprises the components of an experiment platform base, an aero-engine body, a driving system, a testing control system and a security protecting device. A first driving motor of the driving system transmits a power to a low-pressure rotor system of the aero-engine body. A second driving motor transmits the power to a high-pressure rotor system of the aero-engine body through a second coupling and an accessory transmission system of the aero-engine body. A motor output shaft, the low-pressure rotor system and the high-pressure rotor system are provided with capacitive displacement sensors. A second-stage case, a third-stage case, a six-stage case, a combustion chamber case and a high-pressure turbo case which correspond with five supporting bearings of the aero-engine are provided with three-dimensional vibration acceleration sensors. The vibration control experiment platform can be used testing and analyzing a multi-factor coupled vibration problem of the aero-engine. The vibration control experiment platform can be widely used for researching vibration characteristic and vibration control strategy of an aero-engine double-rotor system.

Description

technical field [0001] The invention relates to an engine experiment device, in particular to an aeroengine experiment platform. Background technique [0002] As the power device of aircraft, aeroengine is the key to measure a country's power research and development and manufacturing level, and an important symbol of the strength of a great power. Its related technical research has extremely high political, economic and military value. In recent years, the requirements for engine performance have been continuously improved, and the load on engine components has increased significantly, resulting in very prominent vibration problems. Vibration control has become one of the important research projects of aeroengines. [0003] The research on the vibration control technology of aero-engine needs the support of the corresponding experimental platform. The existing experimental platform is generally oriented to the local construction of the aero-engine, which is suitable for the...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/00G01M7/02
CPCG01M7/02G01M7/025G01M15/00
Inventor 蒋玲莉韩清凯王孝忠徐曼冯和英陈广飞
Owner SUZHOU DONGLING VIBRATION TEST INSTR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com