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

Piston skirt optimization method based on finite element analysis

An optimization method and piston skirt technology, applied in the field of engine parts, can solve problems such as cylinder liner vibration, cylinder liner outer surface cavitation, mechanical deformation, etc.

Inactive Publication Date: 2018-02-09
山东云内动力有限责任公司 +1
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now, the gasoline explosion pressure is increasing, so the side thrust on the skirt is also increasing, which will cause more severe mechanical deformation
[0005] Practice has shown that the problem of the piston skirt due to excessive mechanical load is that the side thrust of the piston will periodically impact the cylinder wall, causing vibration and noise of the cylinder liner, and in severe cases, it will cause cavitation on the outer surface of the cylinder liner

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
  • Piston skirt optimization method based on finite element analysis
  • Piston skirt optimization method based on finite element analysis
  • Piston skirt optimization method based on finite element analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0035] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0036] As introduced in the background technology, the prior art has the disadvantages that the load on the pist...

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

PropertyMeasurementUnit
Elastic modulusaaaaaaaaaa
Login to View More

Abstract

The invention discloses a piston skirt optimization method based on finite element analysis. The problems that in the prior art, the load of a piston is too large and the stress on a piston skirt cannot be effectively analyzed are solved. The method has the advantages that stress analysis is conducted on the piston skirt, and the piston can better meet work requirements by changing skirt parameters to optimize the piston skirt. According to the technical scheme, the method includes the following steps that a three-dimensional model of the piston is established, piston parameters are set, and grids are divided; the mechanical stress and deformation of the piston skirt are analyzed to obtain the maximum stress position of the piston skirt; the edge of the piston skirt is optimized to obtaina skirt optimization result.

Description

technical field [0001] The invention relates to the field of engine parts, in particular to a method for optimizing a piston skirt based on finite element analysis. Background technique [0002] The movement core of the whole engine is the linear stamping movement driven by the engine crankshaft and the piston connecting rod. Through this movement, the chemical energy of the fuel is converted into the mechanical energy driving the engine movement. During this movement, the reliability of the piston, especially the piston skirt The internal reliability is the most important. The piston is an important part of the engine to provide power. The piston stroke and return process are non-uniform before the movement, which drives the piston connecting rod and the crankshaft to rotate to output torque. The piston combustion chamber directly faces the maximum explosion. pressure, subjected to extremely high temperatures and mechanical loads. [0003] With the rapid development of mod...

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
CPCG06F30/23
Inventor 杨永忠李钧袁鸿磊候泉利李长河张云龙
Owner 山东云内动力有限责任公司
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