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

Gear profile modification method based on vibration reliability and genetic algorithm

A genetic algorithm and gear tooth technology, which is applied in the field of gear tooth profile modification based on vibration reliability and genetic algorithm, can solve the problems that are difficult to meet the requirements of heavy load, high speed and high precision of large and complex mechanical transmission, gear tooth meshing stiffness and The elastic deformation calculation model is not accurate enough to guide the gear tooth profile modification design accurately, so as to reduce vibration, improve the reliability of transmission error, and reduce vibration and noise

Inactive Publication Date: 2012-01-11
NORTHEASTERN UNIV LIAONING +1
View PDF1 Cites 44 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these research methods have determined the size of the modification amount and the selection of the modification parts, etc., because the calculation model of the meshing stiffness and elastic deformation of the gear teeth is not accurate enough, and the modification parameters are generally accurate to microns, it is determined that the modification The parameter method cannot accurately guide the gear tooth profile modification design; and because it is very difficult to design gear modification parameters considering the actual dynamic characteristics of the gear, most current methods for reducing gear vibration are based on static calculations
Most of the research on this kind of method focuses on the geometric interference of gear teeth, load mutation and other issues. However, the method of accurately determining the tooth profile modification parameters is still immature, and it is difficult to meet the requirements of heavy load, high speed and high precision for large and complex mechanical transmission.

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
  • Gear profile modification method based on vibration reliability and genetic algorithm
  • Gear profile modification method based on vibration reliability and genetic algorithm
  • Gear profile modification method based on vibration reliability and genetic algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0077] The following takes cylindrical spur gears as an example to modify the gear tooth profile based on vibration reliability and genetic algorithm. The material of the gear is 16Cr3NiWMoVNbE, and the number of teeth of the driving wheel is z 1 is 26, the number of driven gear teeth z 2 is 40, the modulus m is 3mm, the pressure angle α 0 is 20°, tooth width B is 20mm, head clearance coefficient c * is 0.25, and the tooth profile deviations of the driving and driven gears are respectively Ef p =8μm, Ef g =8μm, comprehensive tooth pitch deviation ES=10μm, the maximum modification amount of driving and driven wheels is S p and S g , the modification angle is α p and alpha g , S p =0.06mm, α p = 63°, S g =0.06mm, α g =63 °, the program flow chart of the present invention is as figure 1 shown.

[0078] Step 1: Establish a meshing elastic deformation virtual prototype of gears and modified gears;

[0079] The transmission error of the gear is related to the comprehens...

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 discloses a gear profile modification method based on vibration reliability and a genetic algorithm, belonging to the technical field of reliability designs. The gear profile modification method can not only reduce meshing impact due to elastic deformation and manufacturing errors, but also reduce the meshing excitation of a gear so that a gear system has smooth transmission, the vibration and the noises are reduced, and the reliability and service life of the gear system can be improved. The gear profile modification method comprises the following steps of: (1), establishing an elastic modification virtual prototype for meshing between a gear and a modifying gear; (2) carrying out dynamic simulation on gear transmission errors in the process of an involute profile and the profile modification; (3) analyzing the reliability sensitivity of the transmission errors at the time of gear pair random parameter meshing; (4) determining optimal parameters of the gear profile modification by utilizing the genetic algorithm; and (5) verifying the correctness of the parameters.

Description

technical field [0001] The invention belongs to the technical field of reliability design, in particular to a gear tooth profile modification method based on vibration reliability and genetic algorithm. Background technique [0002] Gear modification technology is listed as a category I research problem among the 16 key technologies of gears. Gear modification technology is the key technology in the design and manufacture of high-precision gear transmission, and it is the most important means to reduce vibration and improve the reliability of high-speed heavy-duty gear transmission. Tooth profile modification is a way of gear modification technology. Tooth profile modification is to modify a part of the original involute tooth profile at the top of the tooth or near the fillet of the root to ease the change of meshing stiffness and reduce the The meshing-in and meshing-out impacts caused by the error of the base joint and the deformation under load can improve the lubricati...

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): G06F17/50
Inventor 孙志礼袁哲闫玉涛杨强王宇宁郭瑜印明昂
Owner NORTHEASTERN UNIV LIAONING
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