Unlock instant, AI-driven research and patent intelligence for your innovation.

Effect load testing algorithm for auxiliary spring of end-contact root strengthened type small piece main and auxiliary spring

An enhanced, contact technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of complex deformation calculation and failure to give

Inactive Publication Date: 2016-11-02
周长城 +1
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the calculation of the deformation of the root-reinforced small-leaf variable-section leaf spring at any position is very complicated, it has not been possible to provide a checking method for the active load of the root-reinforced small-leaf variable-section primary and secondary springs.

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
  • Effect load testing algorithm for auxiliary spring of end-contact root strengthened type small piece main and auxiliary spring
  • Effect load testing algorithm for auxiliary spring of end-contact root strengthened type small piece main and auxiliary spring
  • Effect load testing algorithm for auxiliary spring of end-contact root strengthened type small piece main and auxiliary spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: The number of pieces of a root-reinforced few-piece variable-section main spring is N=2, wherein, half of the length of each piece of main spring L=575mm, width b=60mm, modulus of elasticity E=200GPa, root thickness h 2 =11mm, half of the installation distance l 3 =55mm; the length of the oblique line segment Δl=30mm, the root thickness h of the parabola segment 2p =10.23mm, that is, the thickness ratio of the oblique line segment γ=h 2p / h 2 =0.93; Thickness h of the end straight section of the first main spring 11 =7mm, that is, the thickness ratio β of the parabolic segment of the first main spring 1 = h 11 / h 2p =0.69, the thickness h of the straight section at the end of the second main spring 12 = 6mm, the thickness ratio of the parabolic segment of the second main spring to β 2 = h 12 / h 2p =0.59. Secondary spring length L A =465mm, the horizontal distance l from the auxiliary spring contact to the main spring end point 0 =L-L A=110mm; ...

Embodiment 2

[0046] Embodiment 2: The number of pieces of a root-reinforced few-piece variable-section main spring is N=2, wherein, half of the length L=600mm of each piece of main spring, width b=60mm, modulus of elasticity E=200GPa, root thickness h 2 =14.78mm, half of the installation distance l 3 =60mm; the length of the oblique line segment Δl=30mm, the root thickness of the parabola segment h 2p =13.3mm, that is, the thickness ratio of the oblique line segment γ=h 2p / h 2 =0.90; the thickness h of the end straight section of the first main spring 11 =7.98mm, that is, the thickness ratio β of the parabolic segment of the first main spring 1 =h 11 / h 2p =0.60, the thickness h of the end straight section of the second main spring 12 = 6.52mm, that is, the thickness ratio β of the parabolic segment of the second main spring 2 = 0.49. Half length L of secondary spring A =510mm, that is, the horizontal distance l from the auxiliary spring contact to the main spring end point 0 =L...

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 an effect load testing algorithm for auxiliary spring of end-contact root strengthened type small piece main and auxiliary spring, which belongs to the technical field of a suspension plate spring. According to the structural size and the elastic modulus of the non-structure root reinforced variable cross-section of each piece of end part, the deformation coefficient and stiffness of the endpoint of each main spring as well as the deformation coefficient (I) (G / I) (I) (x / I) DE of the (I)N ( / I) main spring at the contact point between an end part horizontally straight section and an auxiliary spring is firstly calculated. Then, based on the thickness of the horizontally straight section of the main spring's root part, the stiffness of the main spring, the gap between the main spring and the auxiliary spring, and the deformation coefficient (I) (G / I) (I) (x / I) DE of the (I)N ( / I) main spring, the effect load of the auxiliary spring is tested. The simulation results show that the method can enhance the effect load of an auxiliary spring of end-contact root strengthened type small piece main and auxiliary spring accurately so as to improve the level of product design and performance as well as ride comfort; at the same time, the speed of product development can be increased while the cost of design and test is reduced.

Description

technical field [0001] The invention relates to a vehicle suspension leaf spring, in particular to an end-contact root-reinforced few-piece main and auxiliary spring active load test method. Background technique [0002] In order to meet the variable stiffness design requirements of the vehicle suspension under different loads, a small number of variable-section leaf springs are usually designed as the main spring and the auxiliary spring. There is a certain gap between the main spring and the auxiliary spring contacts. Ensure that after a certain load is exceeded, the main and auxiliary springs are in contact and work together. Because the first piece of the main spring with variable cross-section is subjected to complex forces, it not only bears vertical load, but also bears torsional load and longitudinal load. The thickness and length of the end of one leaf spring are greater than the thickness and length of the other pieces; at the same time, in order to strengthen a f...

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
CPCG06F30/17G06F30/23
Inventor 周长城王炳超赵雷雷于曰伟许祥利王凤娟邵明磊
Owner 周长城