TY - JOUR
T1 - Integrated transmission vibration reduction technology based on the “isolating-reducing-optimizing” method
AU - Gao, Pu
AU - Yan, Keyu
AU - Liu, Hui
AU - Xiang, Changle
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2024/1/1
Y1 - 2024/1/1
N2 - Hydro-mechanical transmission devices that can transfer power from the engine to the action mechanism are widely used in heavy-duty vehicles. It has many components, and the operating conditions are complex and changeable. Multi-source excitations and load disturbances easily aggravate vehicle vibrations, which has an adverse impression on the running quality of the whole vehicle. Therefore, it is necessary to carry out research on the vibration problems caused by multiple excitation sources. Thus, in this paper, a new vibration reduction method of “isolating-reducing-optimizing” for hydro-mechanical transmission devices is proposed to optimize such devices in multiple dimensions to improve their dynamic responses. This novel method optimized the coupling stiffness to isolate the vibration caused by the engine fluctuating torque. Moreover, the vibration energy decoupling method and optimization method are used to decouple the rigid body vibration of the mounting system, and gear profile modification method based on a dynamic model is used to attenuate the internal high frequency vibration caused by the gear meshing excitation. Finally, the steady-state conditions and cycle conditions vibration tests of the transmission system before and after optimization are carried out. The time and frequency domain vibration responses of the transmission system before and after optimization are compared to verify the effectiveness of the optimization method.
AB - Hydro-mechanical transmission devices that can transfer power from the engine to the action mechanism are widely used in heavy-duty vehicles. It has many components, and the operating conditions are complex and changeable. Multi-source excitations and load disturbances easily aggravate vehicle vibrations, which has an adverse impression on the running quality of the whole vehicle. Therefore, it is necessary to carry out research on the vibration problems caused by multiple excitation sources. Thus, in this paper, a new vibration reduction method of “isolating-reducing-optimizing” for hydro-mechanical transmission devices is proposed to optimize such devices in multiple dimensions to improve their dynamic responses. This novel method optimized the coupling stiffness to isolate the vibration caused by the engine fluctuating torque. Moreover, the vibration energy decoupling method and optimization method are used to decouple the rigid body vibration of the mounting system, and gear profile modification method based on a dynamic model is used to attenuate the internal high frequency vibration caused by the gear meshing excitation. Finally, the steady-state conditions and cycle conditions vibration tests of the transmission system before and after optimization are carried out. The time and frequency domain vibration responses of the transmission system before and after optimization are compared to verify the effectiveness of the optimization method.
KW - Coupling stiffness
KW - Dynamic test
KW - Gear modification
KW - Hydro-mechanical transmission
KW - Mounting system
KW - Multi-dimensional optimization
UR - http://www.scopus.com/inward/record.url?scp=85175800103&partnerID=8YFLogxK
U2 - 10.1016/j.ymssp.2023.110918
DO - 10.1016/j.ymssp.2023.110918
M3 - Article
AN - SCOPUS:85175800103
SN - 0888-3270
VL - 206
JO - Mechanical Systems and Signal Processing
JF - Mechanical Systems and Signal Processing
M1 - 110918
ER -