Tan, V V and Tu, D T and Thang, T P and Mihály, András and Gáspár, Péter (2025) Utilizing dynamic road stress factor to determine optimal pressure for air suspension system on tractor semi-trailer to minimize dynamic tire forces impacting on road. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING. pp. 1-12. ISSN 0954-4070 10.1177/09544070251321033

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Abstract

This research delves into optimizing the pressure within air suspension systems installed on tractor semi-trailers, leveraging the Dynamic Road Stress Factor. Initially, two models are proposed: one employing a leaf spring suspension system for all axles, and the other incorporating an air suspension system for the two rear axles of the tractor. The air springs are characterized using the Gensys model, focusing on vertical dynamics. The characteristic curve of an air spring is built based on the excitation frequency. Assessment of tractor semi-trailer performance utilizing air suspension reveals a notable 20% reduction in dynamic forces exerted on the road surface compared to leaf spring systems. Ultimately, optimal air spring pressures are determined through the evaluation of the Dynamic Road Stress Factor for the tractor’s two rear axles. Based on these results, the study has proposed a plan to adjust the pressure of air springs according to different operating conditions. © IMechE 2025.

Item Type:	Article
Uncontrolled Keywords:	stress analysis; Dynamic loads; vehicle dynamics; Tractors (agricultural); Tractors (truck); Magnetic levitation vehicles; Automobile suspensions; SUSPENSION SYSTEM; SUSPENSION SYSTEM; Stress intensity factors; stress factors; Vehicle's dynamics; leaf springs; air suspension system; air spring; dynamic load coefficient; dynamic road stress factor; Automobile springs; Rear axles; Air suspension systems; Airsprings; Dynamic load coefficient; Dynamic road stress factor; Load coefficients; Optimal pressure; Tractor semi trailers;
Subjects:	Q Science > QA Mathematics and Computer Science > QA75 Electronic computers. Computer science / számítástechnika, számítógéptudomány
Divisions:	Systems and Control Lab
SWORD Depositor:	MTMT Injector
Depositing User:	MTMT Injector
Date Deposited:	13 Dec 2025 08:02
Last Modified:	13 Dec 2025 08:02
URI:	https://eprints.sztaki.hu/id/eprint/11001

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