Investigation of Vehicle Vibrations During Traversal of Speed Bumps

Viet Dung Bui; Martin Macko; Ba Ngoc Dang

doi:10.3849/aimt.02031

Authors

Bui Viet Dung Department of Weapons and Ammunition, Faculty of Military Technology, University of Defence
Martin Macko Department of Weapons and Ammunition, Faculty of Military Technology, University of Defence
Dang Ba Ngoc University of Defence, Brno, Czech Republic.

DOI:

https://doi.org/10.3849/aimt.02031

Keywords:

vehicle dynamics, speed bumps, vibration analysis, suspension system, ride comfort

Abstract

Speed bumps are commonly used to reduce accidents caused by excessive speed, especially in populated or narrow areas. Their design and placement, however, must ensure vehicle stability and driver comfort. This study develops an 8-degree-of-freedom (8‑DoF) vehicle vibration model incorporating road surface equations with various speed bump configurations. Different bump heights and staggered arrangements are analyzed to produce complex vibration responses. Experimental tests on a 2019 Toyota RAV4 validate the model by measuring vibrations over multiple bump types. The results show strong agreement between simulated and experimental data, offering valuable guidance for designing speed bumps that effectively enhance traffic safety while minimizing discomfort.

Author Biographies

Bui Viet Dung, Department of Weapons and Ammunition, Faculty of Military Technology, University of Defence

Bui Viet Dung is a second-year PhD student in the Department of Weapons and Ammunition, Faculty of Military Technology, University of Defence. He is also a lecturer in ballistics at the Military Technical Academy in Vietnam and is currently pursuing his PhD studies in the Czech Republic. In Vietnam, he has taught many students and has published several scientific papers.
Martin Macko, Department of Weapons and Ammunition, Faculty of Military Technology, University of Defence

Professor Martin Macko is a university professor at the University of Defence in the Czech Republic and a respected expert in the field of mechanical engineering, specializing in weapons, ammunition and ballistics. He is the author of several textbooks, patents and scientific articles in the field of Weapons and Ammunition. He is well known for the development of measuring instruments for military technology and also for the field of forensic science. He is a university professor for more than 30 years, and has supervised PhD students from both the Czech Republic and abroad in their scientific work. He is a successful researcher of projects in weapon systems. In the past, he acted as Dean of the Faculty of Military Technology and also held the position of Vice-Rector for Scientific Activities.
Dang Ba Ngoc, University of Defence, Brno, Czech Republic.

PhD student Dang Ba Ngoc is a first-year PhD student in the Department of Weapons and Ammunition, Faculty of Military Technology, University of Defence. PhD student Dang Ba Ngoc is a researcher at the Institute of Weapons, General Department of Defense Industry in Vietnam and was sent to the Czech Republic as a PhD student. In Vietnam, he has chaired and participated in many scientific projects at the Ministry of Defense and state levels.

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