Abstract
Purpose: The engine room temperature of automobiles is constantly rising as the turbo system installation rate increases. On the other hand, plastic materials are very sensitive on temperature changes. Therefore, the heat aging characteristics of plastics applied to automobile powertrains and the lifetime estimation of plastic parts were studied.BRMethods: Heat aging test by temperature condition was conducted for plastic materials applied to automobile powertrain parts. Also, field vehicle operating conditions and environmental temperature were measured. Based on heat aging test and field data, reliability analysis was conductedBRResults: The influence on the mechanical properties was identified, and the acceleration evaluation limit temperature was obtained through the analysis of the degradation mechanism of plastics. The activation energies for mechanical properties and composition of plastic materials were derived from established Arrhenius lifetime estimation model. Also, damage prediction in real environmental conditions and limit temperature to resist in life time of several structural powertrain plastic parts were analyzed and safety factor or limit temperature were determined for these plastic parts.BRConclusion: A method for analyzing thermal damage in the actual environment of the plastic powertrain parts was established.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
