TY - GEN
T1 - Investigation on the Impact of Unilateral Step Load on the Torsional Vibration Characteristics of Tracked Vehicle Electro-Mechanical Transmission System
AU - Yang, Dianzhao
AU - Liu, Hui
AU - Jiao, Jiaxin
AU - Gao, Pu
AU - Yan, Qi
AU - Yang, Yi
AU - Yan, Keyu
N1 - Publisher Copyright:
© The Chinese Mechanical Engineering Society 2027.
PY - 2027
Y1 - 2027
N2 - With the increasing demand for environmental protection and sustainable development, tracked vehicles with Electro-Mechanical Transmissions (EMT) have garnered significant attention due to their compact size, high efficiency, and large power transmission capabilities. However, existing re-search often overlooks the differences in resistance and motion states experienced by both tracks, leading to a lack of alignment between the exploration of EMT characteristics and vibration suppression strategies with real-world conditions. This paper investigates the torsional vibration characteristics of electric tracked vehicle EMT under unilateral load step-change conditions. A dynamic model of EMT torsional vibration was established to explore the impact of unilateral load resistance torque step changes on the torsional vibration characteristics of EMT during steady-state travel. The study found that under the influence of unilateral load step changes, the energy balance of the system's inertial loads is disrupted, triggering transient torsional vibrations in the unilateral flexible drive system, dominated by low-order modes. Meanwhile, the vibrational energy on both sides flows back and forth through the coupling points, causing an imbalanced distribution of vibrational energy and further exacerbating the irregular oscillation of the system's torque.
AB - With the increasing demand for environmental protection and sustainable development, tracked vehicles with Electro-Mechanical Transmissions (EMT) have garnered significant attention due to their compact size, high efficiency, and large power transmission capabilities. However, existing re-search often overlooks the differences in resistance and motion states experienced by both tracks, leading to a lack of alignment between the exploration of EMT characteristics and vibration suppression strategies with real-world conditions. This paper investigates the torsional vibration characteristics of electric tracked vehicle EMT under unilateral load step-change conditions. A dynamic model of EMT torsional vibration was established to explore the impact of unilateral load resistance torque step changes on the torsional vibration characteristics of EMT during steady-state travel. The study found that under the influence of unilateral load step changes, the energy balance of the system's inertial loads is disrupted, triggering transient torsional vibrations in the unilateral flexible drive system, dominated by low-order modes. Meanwhile, the vibrational energy on both sides flows back and forth through the coupling points, causing an imbalanced distribution of vibrational energy and further exacerbating the irregular oscillation of the system's torque.
KW - Electro-Mechanical Transmission
KW - Torsional Vibration
KW - Tracked Vehicle
UR - https://www.scopus.com/pages/publications/105043730374
U2 - 10.1007/978-981-95-7904-4_24
DO - 10.1007/978-981-95-7904-4_24
M3 - Conference contribution
AN - SCOPUS:105043730374
SN - 9789819579037
T3 - Mechanisms and Machine Science
SP - 312
EP - 320
BT - Advances in Mechanical Design - Proceedings of The 2025 International Conference on Mechanical Design ICMD 2025
A2 - Tan, Jianrong
A2 - Liu, Zhenyu
A2 - Hu, Weifei
PB - Springer Science and Business Media B.V.
T2 - International Conference on Mechanical Design, ICMD 2025
Y2 - 9 May 2025 through 11 May 2025
ER -