Simulation calculation method for initial tangent arc heights of identically structured few oblique-line taper leaf springs

A technology with oblique lines and variable cross-sections, which is applied in design optimization/simulation, calculation, computer-aided design, etc., can solve the problem of the initial tangent arc height of the small-piece oblique-type variable-section leaf springs of the same structure that has not been given, and achieves The effect of speeding up product development, improving design level, and reducing design, development and test costs

Inactive Publication Date: 2018-07-10
SHANDONG UNIV OF TECH
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Problems solved by technology

However, according to the information obtained, due to the relationship between the initial tangent arc height of each leaf spring and the structure of each leaf spring, the free tangent arc height, the thickness of the root and end gaskets, and the calculation of the initial tangent arc height However, the simulation algorithm for the initial tangent arc height of the equal-construction small-slope type variable-section leaf spring has not been given before.

Method used

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  • Simulation calculation method for initial tangent arc heights of identically structured few oblique-line taper leaf springs
  • Simulation calculation method for initial tangent arc heights of identically structured few oblique-line taper leaf springs
  • Simulation calculation method for initial tangent arc heights of identically structured few oblique-line taper leaf springs

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Effect test

Embodiment 1

[0021] Embodiment 1: Half of the active length L of a certain structure with few oblique line type variable-section leaf springs T =575mm, half the length L of the straight section of the root clamped by the saddle bolt 0 =50mm, width b=60mm. The number of leaf springs n=3, the thickness h of the straight section at the root of each leaf spring 2 = 12mm, the thickness h of the straight section at the end 1 =7mm, the thickness ratio of the oblique line segment β=h 1 / h 2 = 0.5833. The design value H of the free tangent arc height of each leaf spring g10 =96.3mm,H g20 =102mm, H g30 = 105.7mm. Root gasket thickness δ c =3mm, end gasket thickness δ e = 6mm. According to the number of leaf springs, the thickness of the root gasket and the end gasket, the structural parameters of each leaf spring and the design value of the free tangent arc height, assemble and clamp the few-piece inclined-line variable-section leaf spring of the same structure Afterwards, the initial ta...

Embodiment 2

[0034] Embodiment 2: The width b=60mm of the leaf spring of a certain construction with few oblique lines and variable cross-section, half of the clamping distance of the saddle bolt L 0 =55mm, half of the working length L T =575mm. The number of leaf springs n=4, the thickness h of the straight section at the root of each leaf spring 2 = 14mm, the thickness h of the straight section at the end 1 =8mm, the thickness ratio of the oblique line segment β=h 1 / h 2 =0.5714. The design value H of the free tangent arc height of each leaf spring g10 =91.1mm,H g20 =96.7mm,H g30 =99.3mm,H g40 = 101.9mm. Root gasket thickness δ c =3mm, end gasket thickness δ e = 6mm. According to the number of leaf springs, the thickness of the root gasket and the end gasket, the structural parameters of each leaf spring and the design value of the free tangent arc height, after assembling and clamping the few-piece inclined-line variable-section leaf spring of the same structure The initial...

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Abstract

The invention relates to a simulation calculation method for initial tangent arc heights of identically structured few oblique-line taper leaf springs, and belongs to the technical field of few taperleaf springs of a suspension. Through the adoption of the method, according to the number of the leaf springs, structural parameters of each leaf spring, a design value of height of each free tangentarc and thicknesses of root and end gaskets, simulation calculation can be performed on the initial tangent arc height of each leaf spring after pre-clamping of the identically structured few oblique-line taper leaf springs. Prototype testing proves that the simulation calculation method for the initial tangent arc heights of the identically structured few oblique-line taper leaf springs is correct, and a reliable technological method is provided for simulation calculation of the initial tangent arc heights of the identically structured few oblique-line taper leaf springs. By means of the method, the initial tangent arc height of the first leaf spring after pre-clamping can meet the design requirement, so that design level and reliability of the product as well as vehicle traveling comfortand safety are improved; meanwhile, design and testing expenses of the product are reduced, and the product development rate is increased.

Description

technical field [0001] The invention relates to a small-piece variable-section leaf spring for a vehicle suspension, especially a simulation algorithm for an initial tangent arc height of an equal-structure small-piece oblique-line variable-section leaf spring. Background technique [0002] With the rapid development of energy saving and lightweight of automobiles, leaf springs with small variable cross-sections are increasingly popular in vehicle suspension due to their advantages of light weight, high material utilization, no or small friction between sheets, low vibration and noise, and long service life. Experts, manufacturers and vehicle manufacturers are highly concerned. Compared with the parabolic variable-section leaf spring, the processing technology and required equipment of the small-piece slash-shaped variable-section leaf spring are simple, so the equal-structure small-piece slash-shaped variable-section leaf spring is obtained in the vehicle suspension system....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/17G06F30/20G06F2119/06
Inventor 赵雷雷周长城邵明磊于曰伟汪晓杨腾飞杨铖兆梁宇通李晓晗
Owner SHANDONG UNIV OF TECH
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