Reverse twist designing method of pre-deformation influence of moving blades of marine combustion engine gas compressor

A design method and pre-deformation technology, applied in design optimization/simulation, calculation, special data processing applications, etc., can solve problems such as compressor performance attenuation, and achieve the effect of improving the efficiency of anti-torsion design

Inactive Publication Date: 2018-10-26
HARBIN GUANGHAN GAS TURBINE
View PDF2 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of compressor performance attenuation caused by the deformation of the moving blades during the actual operation of the marine g

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
  • Reverse twist designing method of pre-deformation influence of moving blades of marine combustion engine gas compressor
  • Reverse twist designing method of pre-deformation influence of moving blades of marine combustion engine gas compressor
  • Reverse twist designing method of pre-deformation influence of moving blades of marine combustion engine gas compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] refer to figure 1 , a specific implementation of an anti-twist design method that takes into account the influence of pre-deformation of the gas turbine compressor motor blade is achieved through the following steps:

[0027] Step 1: Take the blade geometric blade shape of the aerodynamic design scheme as the original design blade shape, and use the blade modeling software with independent intellectual property rights or general commercial geometric configuration software to construct the geometric model of the original design blade shape;

[0028] Step 2: Use finite element meshing software to discretize the grid of the original design blade shape, obtain performance parameters such as elastic modulus, density and Poisson's ratio according to the blade material, form a blade finite element model, and combine the design operating point speed requirements , apply the centrifugal force and displacement constraint boundary conditions calculated by finite element, use the f...

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 belongs to the technical field of gas turbines, in particular to a reverse twist designing method of pre-deformation influence of moving blades of a marine combustion engine gas compressor. The method comprises the following steps: carrying out nonlinear static analysis on original pneumatic designed blade forms under a centrifugal force action so as to acquire initial prediction cold-state blade forms; then carrying out repeated iteration on fluid-solid coupling solution to acquire final transitional heat-state blade forms and corresponding cold-state processing blade forms; carrying out three-dimensional viscous flow field analysis solution on the whole working conditions of the whole gas compressor according to the final heat-state blade forms of the cold-state processingblade forms under different working conditions, and verifying a reverse twist design result. By using twist twist angle numerical values as a convergence condition, based on that, a reverse twist design process of the moving blades of the marine combustion engine gas compressor is built, and the pneumatic performance checking result of the whole gas compressor as a final judgement evidence of thereverse twist design, so that seamless connection between the reverse twist design and gas compressor engineering design is realized, the reverse twist design efficiency is improved, and the reverse twist designing method has an important engineering application values.

Description

Technical field: [0001] The invention belongs to the technical field of gas turbine equipment, and in particular relates to an anti-twist design method considering the influence of pre-deformation of moving blades of gas turbine compressors on ships. Background technique: [0002] The performance of the compressor directly determines the overall performance index of the marine gas turbine. With the continuous development of marine gas turbines, the compressor motor blades now have higher load capacity and tip tangential speed. For this reason, the moving blades of the compressor often adopt a relatively complex three-dimensional space configuration and a thinner blade thickness, which reduces the relative rigidity of the blade, and is prone to large deformation under the combined action of aerodynamic load and centrifugal load. The airfoil shape is the key element to determine the performance of the compressor. Ensuring that the airfoil shape is as close as possible to 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
IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/23Y02T90/00
Inventor 王琦洪青松王廷任兰学张亮刘云宁万新超罗铭聪邓庆锋
Owner HARBIN GUANGHAN GAS TURBINE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap