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Durability Enhancement of Spring Seat in Bogie Suspension
ISSN: 0148-7191, e-ISSN: 2688-3627
Published November 27, 2013 by SAE International in United States
Annotation ability available
Event: 8th SAEINDIA International Mobility Conference & Exposition and Commercial Vehicle Engineering Congress 2013 (SIMCOMVEC)
Spring seat plays major role in bogie suspension; which is guiding and controlling the leaf spring for better suspension and also to withstand the compressive load from leafs. Currently used spring seats are failing frequently in medium and heavy duty vehicles, which lead to customer concerns by higher idle time and part replacement cost.
Thickness of the spring seat can't be increased by large extent due to packaging constraints in the vehicle. Stress levels identified by FEA method are found higher than the current material capacity. With these constraints, the spring seat has been re-designed with improved strength and ductility of material by modern technology - Austempered Ductile Iron (ADI).
The parts have been developed and assembled in various tipper applications and performance was studied. The developed spring seat shows five times superior durability compare to existing design. This paper mainly deals with work done to implement ADI technology, very first in Indian commercial vehicle industry.
CitationSivakumar, V., "Durability Enhancement of Spring Seat in Bogie Suspension," SAE Technical Paper 2013-01-2848, 2013, https://doi.org/10.4271/2013-01-2848.
- ASTM standard Standard specifications for Austempered Ductile Iron Castings Designation: A897-90 1997
- http://www.mscsoftware.com/support/online_ex/previous_Patran/Pat322/Lec10_Lesson14_Hertz_Contact.pdf June 2012
- Hayrynen K L , Brandenberg K R , Keough J R Applications of Austempered cast irons AFS transactions 02-084 1 10 2002