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

Contact load simulating calculation method for high-strength two-level gradually changing stiffness plate spring

A simulation calculation and high-strength technology, which is applied in the field of contact load simulation calculation method, can solve the problems that the deflection calculation of the main spring of the high-strength two-stage gradient stiffness leaf spring and the high-strength two-stage gradient stiffness leaf spring is not given. Achieve the effect of speeding up product development, reducing design and testing costs, and meeting design requirements

Inactive Publication Date: 2017-05-31
SHANDONG UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the gradual contact between the main spring and the primary and secondary auxiliary springs, the contact length and the gradual stiffness change with the load, the calculation of the main spring deflection of the high-strength two-stage gradient stiffness leaf spring is very complicated, and the contact The simulation calculation of the load is related to the calculation of the deflection, tangent arc height and radius of curvature of the leaf spring under a certain load. Therefore, according to the research data, the contact load of the high-strength two-stage gradient stiffness leaf spring has not been given before at home and abroad. simulation calculation method

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
  • Contact load simulating calculation method for high-strength two-level gradually changing stiffness plate spring
  • Contact load simulating calculation method for high-strength two-level gradually changing stiffness plate spring
  • Contact load simulating calculation method for high-strength two-level gradually changing stiffness plate spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] Embodiment: the width b=63mm of a certain high-strength two-stage gradient stiffness leaf spring, half L of the saddle bolt clamping distance 0 =50mm, elastic modulus E=200GPa. The total number of sheets of the main and auxiliary springs is N=5, where the number of sheets of the main spring is n=2, and the thickness of each sheet of the main spring is h 1 = h 2 =8mm, half of the active length of each leaf of the main spring is L 1T =525mm,L 2T =450mm; half of the clamping length is L 1 = L 1T -L 0 / 2=500mm, L 2 = L 2T -L 0 / 2=425mm; the initial tangent arc height H of the main spring gM0 = 112.2mm. The number of sheets of the first secondary spring m 1 = 1 piece, thickness h A11 =11mm, half of the active length is L A11T =360mm, half of the clamping length L A11 = L A11T -L 0 / 2=335mm; the initial tangent arc height H of the first secondary spring gA10 = 22.8 mm. The number of pieces of secondary secondary spring m 2 = 2 pieces, the thickness h of eac...

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 relates to a contact load simulating calculation method for a high-strength two-level gradually changing stiffness plate spring, and belongs to the technical field of vehicle suspension steel plate springs. The contact load of the equal offset frequency high-strength two-level gradually changing stiffness plate spring can be calculated in a simulating manner according to structural parameters of main springs and auxiliary springs, elastic modulus, initial tangent arc height design values of the main springs and initial arc height design values of the first-level auxiliary spring and the second-level auxiliary spring by the aid of the relation between the contact load and the deflection of the main springs and the auxiliary springs and the relation between the curvature radius and the initial tangent arc height. According to comparison of verification values with design requirement values and model machine experiment test values, the contact load simulating calculation method for the high-strength two-level gradually changing stiffness plate spring is correct. By the method, accurate and reliable contact load simulating calculation values can be acquired, so that product design level, quality and performances are improved. Besides, design and experiment expenses are reduced, and product development is accelerated.

Description

technical field [0001] The invention relates to a simulation calculation method of the contact load of a leaf spring of a vehicle suspension, especially a leaf spring of high strength with two stages of gradually changing stiffness. Background technique [0002] With the emergence of high-strength steel plate materials, high-strength two-stage gradient stiffness leaf springs can be used for vehicle suspension, so as to further meet the design requirements of vehicle ride comfort and suspension gradient bias frequency under different loads. Among them, The contact load of the gradient stiffness plate spring affects the stress of the leaf spring, the stress of the main spring and the auxiliary spring, the gradient stiffness, the suspension bias frequency and the ride comfort of the vehicle, and also restricts the high-strength two-stage gradient stiffness plate for a given design structure Simulation verification of spring deflection, stiffness, stress and other characteristic...

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): G06F17/50F16F3/02F16F1/18F16F1/26B60G11/02
CPCB60G11/02F16F1/185F16F1/26F16F3/023F16F2230/00F16F2230/0023F16F2238/022G06F30/15G06F30/20
Inventor 周长城赵雷雷邢玉清汪晓杨腾飞邵明磊王凤娟
Owner SHANDONG UNIV OF TECH
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