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Simulation calculation method for tangent arc height of root curve type unequal-thickness stacked plate springs

A curvilinear, non-equal thickness technology, applied in the field of simulation test algorithm, can solve the problem that the suspension leaf spring cannot be satisfied, and the tangential arc of non-equal thickness superimposed leaf spring has not been given accurate and reliable, so as to reduce the design and test costs, The effect of improving the design level and speeding up the development speed

Inactive Publication Date: 2018-07-10
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 research data, due to the restriction of the calculation of the influence coefficient of the saddle bolt arc height, no accurate and reliable simulation algorithm for the root curve type non-equal thickness superimposed leaf spring tangent arc height has been given before, which cannot meet the rapid development of vehicles and Requirements for Modern CAD Design of Suspension Leaf Springs

Method used

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  • Simulation calculation method for tangent arc height of root curve type unequal-thickness stacked plate springs
  • Simulation calculation method for tangent arc height of root curve type unequal-thickness stacked plate springs
  • Simulation calculation method for tangent arc height of root curve type unequal-thickness stacked plate springs

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Effect test

Embodiment 1

[0028] Embodiment 1: the width b=60mm of a curved non-equal-thickness stacked leaf spring at the root, the number of leaf springs n=5, and the thickness of each leaf spring is h 1 = 9mm, h 2 = 8mm, h 3 = 8mm, h 4 = 10mm, h 5 =10mm; Half of the effective length of each leaf spring is L 1T =575mm,L 2T =525mm,L 3T =475mm, L 4T =425mm, L 5T =375mm; the design value of the free tangent arc height of each leaf spring is H g10 =106.1mm, H g20 =89.8mm,H g30 =77.1mm,H g40 =63.0mm,H g50 = 50.0 mm. Half of the saddle bolt clamping distance L 0 = 50mm. According to the number of leaf springs, the structural parameters of each leaf spring and the design value of the free tangent arc height, the pre-clamping of the first leaf spring after the root curved non-equal thickness superimposed leaf spring is pre-clamped by the central threading bolt The tight tangent arc height and the assembly and clamping tangent arc height of the first leaf spring after the saddle bolt is assembl...

Embodiment 2

[0051] Embodiment two: the width b=60mm of superimposed plate spring of non-equal thickness of a certain root curve, the number of plate springs n=4, the thickness of each leaf spring is h 1 = 10mm, h 2 = 9mm, h 3 = 9mm, h 4 =9mm; Half of the effective length of each leaf spring is L 1T =575mm, L 2T =525mm,L 3T =475mm, L 4T =425mm; the design value H of the free tangent arc height of each leaf spring g10 =102.1mm, H g20 =89.7mm,H g30 =80.1mm,H g40 = 69.5 mm. Half of the saddle bolt clamping distance L 0 = 55mm. According to the number of leaf springs, the structural parameters of each leaf spring and the design value of the free tangent arc height, the pre-clamping of the first leaf spring after the root curved non-equal thickness superimposed leaf spring is pre-clamped by the central threading bolt The tight tangent arc height and the assembly and clamping tangent arc height of the first leaf spring after the saddle bolt is assembled and clamped are simulated and ...

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Abstract

The invention relates to a simulation calculation method for the tangent arc height of root curve type unequal-thickness stacked plate springs, belonging to the technical field of a suspension steel plate spring. According to the number of the plate springs, the structure parameters of each plate spring and the design value of a free tangent arc height, the simulation calculation method conducts simulation calculation for the preclamped tangent arc height of the first plate spring of the root curve type unequal-thickness stacked plate springs after a bolt penetrates through the center and is clamped and the assembly clamping tangent arc height of the first plate spring of the root curve type unequal-thickness stacked plate springs after a U-bolt is assembled and clamped. By prototype testing, the simulation calculation method is correct and can obtain accurate and reliable simulation calculation values of the preclamped tangent arc height and the assembly clamping tangent arc height. By using the method, the design level and reliability of a product can be improved, the service life of the product can be prolonged, and the vehicle driving safety can be improved. Meanwhile, the design and testing expenses of the product are reduced, and the rate of development of the product is increased.

Description

technical field [0001] The invention relates to a vehicle suspension leaf spring, in particular to a simulation test algorithm for root curved non-equal thickness superimposed leaf spring tangent arc height. Background technique [0002] Multi-leaf superimposed leaf springs are widely used parts in vehicle suspension springs. Usually, in order to improve the production process, improve the production efficiency of leaf springs and meet the complex requirements of the first leaf spring, each leaf spring is processed by a curved surface. And the thickness of the first leaf spring is greater than the thickness of the other leaf springs, that is, the root curved non-equal thickness stacked leaf springs. Through the different free tangent arc heights of each leaf spring, the pre-clamping tangent arc height of the first leaf spring after being pre-clamped by the center mounting bolt and the assembly clamp of the leaf spring after the saddle bolt assembly and clamping are ensured ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F3/02F16F1/18G06F17/50
CPCF16F1/187F16F3/023F16F2226/04F16F2230/0017F16F2230/40F16F2238/022G06F30/15G06F30/17G06F30/20G06F2119/06
Inventor 周长城于曰伟赵雷雷梁勋乾刘灿昌陈海真李晓晗毛少坊梁宇通
Owner SHANDONG UNIV OF TECH
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