The pneumatic air brake system for heavy commercial trucks is composed by a large number of components, aiming its proper work and compliance with rigorous criteria of vehicular safety. One of those components, present along the whole vehicle, is the air brake tube, ducts which feed valves and reservoirs with compressed air, carrying signals for acting or releasing the brake system.In 2011, due to a lack of butadiene in a global scale, the manufacturing of these tubes was compromised; as this is an important raw material present on the polymer used so far, PA12.This article introduces the methodology of selecting, developing and validating in vehicle an alternative polymer for this application. For this purpose, acceptance criteria have been established through global material specifications, as well as bench tests and vehicular validation requirements.The possible alternative materials have been tested under different chemical, mechanical and thermal conditions, also respecting specific characteristics on heavy commercial vehicles application. In addition, static, dynamic and cyclic aging tests were performed in order to simulate its performance through the entire life of the vehicle. The analysis of parameters such as cost, assembly impact, handling and storing in assembly line and serviceability were also evaluated along the study.A PA6.10 material was validated considering performance material standards, assembly line conditions and Brazilian commercial trucks application.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Methodology for Developing and Validating Air Brake Tubes for Commercial Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    21st SAE Brasil International Congress and Exhibition ; 2012



    Publication date :

    2012-10-02




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Methodology for developing and validating air brake tubes for commercial vehicles

    Iombriller, S.F. / De Sa Eiras, D.M. / Souza, M.R. et al. | British Library Conference Proceedings | 2012


    Methodology for Sizing and Validating Life of Brake Pads Analytically

    Antanaitis, David B. / Lee, Heewook | SAE Technical Papers | 2014


    Brake by Wire for Commercial Vehicles

    Decker, Heinz / Wrede, Jürgen | SAE Technical Papers | 1992



    Safety brake systems for commercial vehicles

    Atkin, R.L. / Bennett, J.D. | Engineering Index Backfile | 1964