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Dismounting design method of automobile equal-strength superposition steel plate spring

A leaf spring and design method technology, applied in spring/shock absorber, calculation, leaf spring, etc., can solve the problem that the split design does not give an accurate and reliable analytical design method, and achieve the goal of reducing design and test costs Effect

Inactive Publication Date: 2014-12-24
SHANDONG UNIV OF TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] Suspension Leaf spring is one of the important components of the vehicle suspension system. It plays an important role in supporting the mass of the vehicle body and has an important impact on the characteristics of the vehicle suspension system. Accurate and reliable analytical design methods are given, most of which use the graphical method for approximate design, and then verify through repeated experiments to finally determine the design parameters of the leaf spring

Method used

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  • Dismounting design method of automobile equal-strength superposition steel plate spring
  • Dismounting design method of automobile equal-strength superposition steel plate spring
  • Dismounting design method of automobile equal-strength superposition steel plate spring

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Embodiment

[0034] Embodiment: the load F borne by one end of a certain vehicle single-wheel leaf spring W =10000N, half the length l of equal-strength leaf spring 1 =600mm, width b=40mm, safe allowable stress [σ]=700MPa, elastic modulus E of leaf spring material=200GPa.

[0035] The analytical split design method of the automobile equi-intensity superimposed leaf spring provided by the example of the present invention, the concrete steps are as follows:

[0036] (1) Calculation of the maximum thickness of the equal-strength single-piece variable-thickness curved surface leaf spring:

[0037] According to the load F on one end of the single-wheel leaf spring of the vehicle W =10000N, half the length l of equal-strength leaf spring 1 =600mm, width b=40mm, the required safe allowable stress [σ]=700MPa, and the mechanical model of equal-strength single-piece variable-thickness curved surface leaf spring, determine the maximum thickness h of equal-strength single-piece variable-thickness c...

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Abstract

The invention relates to a dismounting design method of an automobile equal-strength superposition steel plate spring, and belongs to the technical field of a vehicle suspension steel plate spring. Most steel plate springs in the prior art adopt a graphic method or an ANSYS simulation verification method, and the CAD design requirement of the automobile equal-strength superposition steel plate spring cannot be met. The dismounting design method provided by the invention is characterized in that according to a load borne by one end of a vehicle one-wheel steel plate spring, the maximum thickness of the automobile equal-strength single-piece variable-thickness curve surface steel plate spring is designed, and then, the automobile equal-strength superposition steel plate spring is subjected to dismounting design by utilizing the equivalent principle and the equal stress intensity condition design requirements, so the thickness and the length of each piece of the automobile equal-strength superposition steel plate spring can be obtained through the design. The dismounting design method provided by the invention can be used for accurately and reliably carrying out dismounting design on the automobile equal-strength superposition steel plate spring, in addition, the design cost and the test cost can also be reduced, and the important design technology and method can be provided for the design of the steel plate spring.

Description

technical field [0001] The invention relates to an automobile suspension leaf spring, in particular to an analysis and split design method for an automobile equal-strength superimposed leaf spring. Background technique [0002] Suspension Leaf spring is one of the important components of the vehicle suspension system. It plays an important role in supporting the mass of the vehicle body and has an important impact on the characteristics of the vehicle suspension system. Given accurate and reliable analytical design methods, most of them use the graphical method for approximate design, and then verify through repeated experiments to finally determine the design parameters of the leaf spring. With the rapid development of the automobile industry and the continuous improvement of vehicle speed, higher requirements are put forward for the design of vehicle suspension leaf springs. Automobile manufacturers urgently need accurate and reliable analytical design methods to meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50F16F1/18
Inventor 宋群周长城于曰伟张云山潘礼军
Owner SHANDONG UNIV OF TECH
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