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Simulation checking calculation method for initial tangent arc height of double-reinforced isomorphic few-leaf variable-section leaf spring

A variable cross-section and leaf spring technology, which is applied in design optimization/simulation, calculation, and special data processing applications, etc., can solve the problems of complex calculation of clamping stiffness, and no double-reinforced structure with few pieces of variable-section leaf springs, etc. , to speed up product development, reduce design and test costs, and improve design levels

Inactive Publication Date: 2018-07-06
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the information obtained, the calculation of the clamping stiffness of each leaf spring of double-reinforced equal-structure parabolic variable-section leaf springs is very complicated, and is restricted by the simulation calculation of the initial tangent arc height of each leaf spring. The simulation algorithm for the initial tangent arc height of the double-reinforced equal-structure leaf spring with few pieces and variable cross-section has not been given

Method used

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  • Simulation checking calculation method for initial tangent arc height of double-reinforced isomorphic few-leaf variable-section leaf spring
  • Simulation checking calculation method for initial tangent arc height of double-reinforced isomorphic few-leaf variable-section leaf spring
  • Simulation checking calculation method for initial tangent arc height of double-reinforced isomorphic few-leaf variable-section leaf spring

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Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: The width b=60mm of a certain double-strengthened equal-structure parabolic variable-section leaf spring, and half the effective length L T =575mm, half the length L of the straight section of the root clamped by the saddle bolt 0 =50mm, horizontal length Δl of oblique section at the end 1 =30mm, the horizontal length of the oblique line section at the root Δl 2 =40mm, the horizontal distance l from the root of the oblique line section at the root to the end point of the leaf spring 2 =L T -L 0 =525mm, the horizontal distance l from the root of the parabola segment to the end point of the leaf spring 2p = l 2 -Δl 2 =495mm. The number of leaf springs n=3, the thickness h of the straight section at the root of each leaf spring 2 =18mm, root thickness h of parabola segment 2p = 17mm, the end thickness h of the parabola segment 1p =7mm, the thickness h of the straight section at the end 1 =8mm; the thickness ratio of the oblique section at the root ...

Embodiment 2

[0034] Embodiment 2: The width b=60mm of a certain double-strengthened equal-structure parabolic variable-section leaf spring, and half the effective length L T =575mm, half the length L of the straight section of the root clamped by the saddle bolt 0 =50mm, horizontal length Δl of oblique section at the end 1 =30mm, the horizontal length of the oblique line section at the root Δl 2 =40mm, the horizontal distance l from the root of the oblique line section at the root to the end point of the leaf spring 2 = L T -L 0 =525mm, the horizontal distance l from the root of the parabola segment to the end point of the leaf spring 2p = l 2 -Δl 2 =495mm. The number of leaf springs n=4, the thickness h of the straight section at the root of each leaf spring 2 = 16mm, root thickness h of parabola segment 2p = 15mm, the end thickness h of the parabola segment 1p = 7mm, the thickness h of the straight section at the end 1 =8mm; the thickness ratio of the oblique section at the ro...

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Abstract

The invention relates to a simulation checking calculation method for the initial tangent arc height of a double-reinforced isomorphic few-leaf variable-section leaf spring, and belongs to the technical field of suspension few-leaf variable-section leaf springs. According to the method, based on the number of leaves of the leaf spring, the structural parameter and free tangent arc height design value of each leaf of the leaf spring and the thicknesses of gaskets at the root and the end, simulation checking calculation is conducted on the initial tangent arc height of each leaf of the leaf spring after the double-reinforced isomorphic parabola-shaped variable-section leaf spring is assembled and clamped. Through a prototype test, it can be known that the simulation checking calculation method for the initial tangent arc height of the double-reinforced isomorphic few-leaf variable-section leaf spring is accurate, and an accurate and reliable simulation checking calculation value of the initial tangent arc height of each leaf of the leaf spring is obtained. By means of the method, it can be ensured that the initial tangent arc height of the first leaf of the leaf spring after being assembled and clamped meets design requirements, and the design level, reliability and service life of a product and the running-safety performance of a vehicle are improved; meanwhile, the design and test costs of the product are reduced, and the development rate of the product is increased.

Description

technical field [0001] The invention relates to a small-piece variable-section leaf spring for a vehicle suspension, in particular to a simulation algorithm for an initial tangent arc height of a small-piece variable-section leaf spring of a double-reinforced structure. Background technique [0002] With the implementation of automobile energy-saving and lightweight policies, the leaf springs with variable cross-sections are increasingly popular in vehicle suspension due to their advantages of light weight, high material utilization, no friction or small friction between sheets, low vibration and noise, and long service life. Experts, manufacturers and vehicle manufacturers have paid great attention to it, and it has been widely used in vehicle suspension systems. In order to strengthen the strength of the leaf spring, an inclined root section is added between the straight section and the parabolic section at the root of the leaf spring. An oblique section at the end is adde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/17G06F30/20
Inventor 周长城于曰伟李晓晗梁宇通毛少坊赵雷雷汪晓杨腾飞杨铖兆
Owner SHANDONG UNIV OF TECH
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