Automotive Multi-Leaf Spring Design and Optimization through FEA

Abstract:

As a result of the high strength-to-weight ratio, the automobile industry is becoming increasingly interested in replacing steel springs with composite leaf springs. The task at hand is to swap out some steel springs for alloy springs. The car's suspension impacts how comfortable it is to drive and how much damage it sustains. The leaf spring group's primary role is to support the suspension element's vertical load. The contact between the blades makes adjusting the crossbow's action more difficult. The goal of this article is to replace steel multi-disc springs with single joint springs that have a higher load carrying capacity and are more stiff. This alloy offers a greater strength-to-weight ratio and a more elastic corrosion energy storage capacity than steel. The crossbow's weight can be lowered without sacrificing the crossbow's load capacity or stiffness. The stress and displacement are controlled by the barrier design.

• Periodical: Engineering Headway (Volume 16)
• Pages: 11-18
• DOI: https://doi.org/10.4028/p-4qYH6T
• Online since: January 2025
• Authors: R. Sabarish, R. Hariharan, R. J. Golden Renjith Nimal*, R. Sangamaeswaran
• Keywords: Composite Materials, FEA, Leaf Spring

References

[1] M. Venkatesan, Jan-Feb 2012, "Design And Analysis Of Composite Leaf Spring In Light Vehicle", International Journal of Modern Engineering Research (IJMER) Vol.2, Issue.1, pp-213-218 ISSN: 2249-6645

[2] Manas Patnaik, Narendra Yadav and Ritesh Dewangan, July-Aug 2012, "Study of a Parabolic Leaf Springby Finite Element Method & Design of Experiments", International Journal of Modern Engineering Research (IJMER) Vol.2, Issue 4, pp-1920-1922 ISSN: 2249-6645.

[3] U.S. Ramakanth & K. Sowjanya. Mar 2013, "Design and Analysis of Automotive Multi-leaf Spring using Composite Materials", International Journal of Mechanical Production Engineering Research and Development (IJMPERD), ISSN 2249-6890, Vol. 3, Issue 1, , 155-162.

[4] Senthil Kumar, Sabapathy Vijayarangan, 2001, "Analytical and experimental studies on fatigue life prediction of steel and composite multi-leaf springs for light passenger vehicles using life data analysis", Journal of Material Processing Technology

[5] Daugherty. R.L, 1981, "Composite leaf springs in heavy truck applications", International conference on composite material proceedings of japan US conference, Tokyo, pp.529-538.

[6] Rajendra Prasad Sahu, Dask Raj Kothari and A.K. Jain, March 2013, "Design and comparative analysis of Multi Leaf Spring using Non-Conventional Materials" VSRD International Journal of Mechanical, Civil, Automobile and Production Engineering, Vol. 3 No. 3 /39, e-ISSN : 2249-8303, p-ISSN : 2319-2208.

[7] Nikolas Philipson and Modelan A B, "Leaf spring modelling", science park S E 22307, Lund Sweden.

[8] ASM Metals Reference Book, Third edition, Michael Bauccio, Ed. ASM International, Materials Park, OH,1993.

[9] Gary Leevy and Khoa Cao, 2004 "Evaluation of a Multi-Leaf Hybrid Springs for Automotive Suspensions" SAE paper series, 2004-01-0782

DOI: 10.4271/2004-01-0782

[10] Mouleeswaran SENTHIL KUMAR, Sabapathy VIJAYARANGAN, "Analytical and Experimental studies on Fatigue Life Prediction of steel and composite Multi-leaf spring for Light Passenger Vehicles using Life Data Analysis" Materials science . vol.13. No.2.(2007)

[11] Erdogan KILIC "Analysis of composite leaf springs" 2006, http:// www.elsevier.com

[12] C.K. Clarke and G.E. Borowski "Evaluation of a leaf spring failure" ASM International 1547-7029