Evolution of the eye-end design of a composite leaf spring for heavy axle loads

Hou, Jun; Cherruault, J.; Nairne, I.; Jeronimidis, G.; Mayer, Rayner M.

doi:10.1016/j.compstruct.2005.10.008

Cited by 50 publications

(14 citation statements)

References 9 publications

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“…Therefore, the composite leaf spring with a main spring and an auxiliary spring, which can provide two levels of stiffness and take into account the lightweight and performance of automobiles at the same time, is the most suitable type for application at present. Eye-end design [39], fatigue life prediction [40,41] and dynamic performance investigation [42] of composite leaf spring with a main spring and an auxiliary spring have been studied by several scholars. However, the design theory of composite leaf spring with a main spring and an auxiliary spring is still underdeveloped.…”

Section: Research Significance Of Composite Leaf Springs With a Main mentioning

confidence: 99%

A theoretical model used for determining the stiffness of composite leaf springs with a main spring and an auxiliary spring

Qian

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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The stiffness characteristics of composite leaf springs with a main spring and an auxiliary spring directly affect the handling stability and riding comfort of automobiles and finally determine its application value. In order to achieve precise calculation for the stiffness characteristics of composite leaf springs with a main spring and an auxiliary spring, a theoretical model, which is verified by finite element simulation and related test results, was established by using the mechanics of composite materials and finite difference method. Then, the design parameters that influence the stiffness of the composite leaf spring with a main spring and an auxiliary spring were analyzed to provide a guide for the stiffness matching and optimization of this kind of composite leaf springs. The proposed theoretical model is suitable for parametric modeling and programming, which not only considers the detail features of the spring and the anisotropy of composite material, but also guarantees the speed and the accuracy of the calculation process. This paper also provides a new numerical method for calculating the stiffness of composite structures with arbitrary section shape or complex material composition.

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Section: Research Significance Of Composite Leaf Springs With a Main mentioning

confidence: 99%

A theoretical model used for determining the stiffness of composite leaf springs with a main spring and an auxiliary spring

Qian

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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“…Parameters of the steel leaf spring used in this work are shown in Table 1 The expression for bending stresses [6],…”

Section: Design Parameter Of Steel Leaf Springmentioning

confidence: 99%

A Performance Evaluation of Leaf Spring Replacing With Composite Leaf Spring

Nadargi¹,

Gaikwad²,

Sulakhe³

2014

IJMIE

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The automobile industry has shown increased interest in the replacement of steel spring with fibre glass composite leaf spring due to high strength to weight ratio. Therefore the aim of this work is to reduce the weight and low cost fabrication of complete mono composite leaf spring and mono composite leaf spring with bonded end joints. Also, general study on the analysis and design. A single leaf with variable thickness and width for constant cross sectional area of unidirectional glass fibre reinforced plastic (GFRP) with similar mechanical and geometrical properties to the multi leaf spring, was designed, fabricated (hand- layup technique) and tested. The results showed that an spring width decreases hyperbolically and thickness increases linearly from the spring eyes towards the axle seat. The finite element results using ANSYS software showing stresses and deflections were verified with analytical and experimental results. The design constraints were stresses (Tsai-Wu failure criterion) and displacement. Compared to the steel spring, the composite spring has stresses that are much lower, the natural frequency is higher and the spring weight is nearly 85 % lower with bonded end joint and with complete eye unit.

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“…Premature failure in leaf springs was also studied so as to suggest remedies on application of composite leaf springs. [6,7,8]…”

Section: Literature Surveymentioning

confidence: 99%

Modelling and Analysis of Composite Leaf Spring under the Static Load Condition by using FEA

Patunkar

Dolas

2011

IJMIE

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Leaf springs are one of the oldest suspension components they are still frequently used, especially in commercial vehicles. The past literature survey shows that leaf springs are designed as generalized force elements where the position, velocity and orientation of the axle mounting gives the reaction forces in the chassis attachment positions. Another part has to be focused, is the automobile industry has shown increased interest in the replacement of steel spring with composite leaf spring due to high strength to weight ratio. Therefore, analysis of the composite material becomes equally important to study the behavior of Composite Leaf Spring. The objective of this paper is to present modeling and analysis of composite mono leaf spring (GFRP) and compare its results. Modelling is done using Pro-E (Wild Fire) 5.0 and Analysis is carried out by using ANSYS 10.0 software for better understanding.

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Evolution of the eye-end design of a composite leaf spring for heavy axle loads

Cited by 50 publications

References 9 publications

A theoretical model used for determining the stiffness of composite leaf springs with a main spring and an auxiliary spring

A theoretical model used for determining the stiffness of composite leaf springs with a main spring and an auxiliary spring

A Performance Evaluation of Leaf Spring Replacing With Composite Leaf Spring

Modelling and Analysis of Composite Leaf Spring under the Static Load Condition by using FEA

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