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

Air turbine starter turbine rotor elastic support design optimization method

An elastic support and air turbine technology, which is applied in design optimization/simulation, multi-objective optimization, computational theoretical chemistry, etc., can solve the problem of not being able to actually exert the effect of the squeeze oil film damper, the structure of the lubricating oil pump, and the structure of the air turbine starter that cannot be installed Compact and other issues

Pending Publication Date: 2022-04-15
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the air turbine starter has a compact structure, and it is impossible to install a lubricating oil pump structure for supplying high-pressure lubricating oil to the squeeze film damper
In addition, the normal working state of the air turbine starter is a continuous unsteady high-speed working process, which cannot actually exert the effect of the squeeze film damper

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
  • Air turbine starter turbine rotor elastic support design optimization method
  • Air turbine starter turbine rotor elastic support design optimization method
  • Air turbine starter turbine rotor elastic support design optimization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] Below in conjunction with the cantilevered supporting rotor of a certain type of air turbine starter, the present invention will be further described through a design optimization process and accompanying drawings of an elastic supporting structure matched with its supporting bearing to meet the requirements of the rotor dynamic characteristics, but the present invention Not limited to the design and optimization of elastic bearings for turbine rotors of air turbine starters.

[0040]The invention discloses an elastic support design method that is based on finite element software, considers strength, life, assembly requirements and meets rotor vibration characteristic adjustment requirements, can automatically iteratively calculate, reduces time cost, and is closer to engineering practice. The designer only needs to consider the structural form of the elastic support and the safety margin requirements according to the disclosed process of the present invention, and the r...

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

The invention provides an air turbine starter turbine rotor elastic support design optimization method in order to overcome the technical defects that an elastic support theoretical design method cannot consider assembly requirements and a finite element method needs to be used for multiple iterative calculations. The method is a finite element design optimization method for an elastic supporting structure with an inner boss or an outer boss or with the inner boss and the outer boss at the same time, the influence of the assembly relation and different material attributes can be considered at the same time, and modal and critical rotating speed calculation of a rotor-supporting structure is automatically carried out. And the iteration time of the process of designing, analyzing, correcting, machining and assembling can be greatly shortened.

Description

technical field [0001] The invention belongs to the field of aircraft starting system design, and in particular relates to an optimization method for elastic support design of a turbine rotor of an air turbine starter. Background technique [0002] The air turbine starter is a rotating machine that relies on compressed air to drive the turbine to rotate, and uses its own deceleration system to increase the torque to achieve high torque and high speed output to start the aeroengine. The air turbine starter is generally composed of three parts: a turbine, a reducer, and a clutch. The turbine has the characteristics of high power, high speed, and high load. Due to its application in aviation, the air turbine starter is required to be compact in structure, smaller in mass and higher in power. Different from the general high-speed rotor, the turbine rotor of the air turbine starter in the industry can output a power of up to 300kW. At present, the maximum speed of the turbine of...

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
IPC IPC(8): G06F30/17G06F30/23G06F30/15G16C60/00G16C10/00G06F111/06G06F119/14
Inventor 孙唯一吕国川石小龙陈利强童琦琦黄芳
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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