Transmission path and influencing factors of abnormal broadband noise and vibration of the generator induced by the driveline

Song, Shizhe; Huang, Yan; Hua, Chunrong; Dong, Dazhong; Cai, Dingzhong; Yan, Bing

doi:10.1016/j.jsv.2023.117730

Journal of Sound and Vibration

2023

DOI: 10.1016/j.jsv.2023.117730

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Transmission path and influencing factors of abnormal broadband noise and vibration of the generator induced by the driveline

Shizhe Song

Yan Huang

Chunrong Hua

et al.

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2023

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Cited by 2 publications

References 25 publications

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Semi-active fuzzy control of a powerpack with magneto-rheological dampers at full operating conditions

Song,

Hua,

Huang

et al. 2023

Journal of Vibration and Control

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Powerpacks are commonly used as the power source in diesel multiple units (DMUs) due to their flexibility and economy. In order to enhance the ride comfort of DMUs at full operating conditions, it is a great challenge to design a multiple objectives semi-active control system to reduce the transmission force to the DMU, vibration intensity at start-stop conditions, and structural vibration in stable operating conditions. A fuzzy semi-active control system incorporating magneto-rheological (MR) dampers and vibration isolators with small stiffness coefficients is designed. Firstly, a rigid-flexible coupling powerpack model is established to reflect the rigid body and structural vibration characteristics. Next, an MR damper’s dynamic behavior at full operating conditions is investigated experimentally, direct and inverse models are established using a genetic algorithm backpropagation (GA-BP) neural network. Then, a variable universe hybrid fuzzy controller is designed for the multiple objectives requirements, including quick response during low-frequency start-stop conditions and effective suppression of structural vibration during high-frequency stable operating conditions. Finally, the vibration isolation performance of the powerpack is verified by simulation and experiments, demonstrating the effectiveness of the semi-active control system with MR dampers and the variable universe hybrid fuzzy controller at full operating conditions.

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Semi-active fuzzy control of a powerpack with magneto-rheological dampers at full operating conditions

Song,

Hua,

Huang

et al. 2023

Journal of Vibration and Control

View full text Add to dashboard Cite

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Influence of the shutdown process of the driveline on the generator bearing life in the diesel generator set

Song

Huang

Hua

et al. 2023

Advances in Mechanical Engineering

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Diesel generator sets are commonly used as power sources in transportation due to their versatility and cost-effectiveness. During the shutdown process, the diesel engine’s cylinder compression pressure would cause forced vibration in the driveline system through the crank linkage mechanism, resulting in unsteady loads that pose a threat to the bearing life. To address this issue, a coupling forward design method is proposed that takes into account the impact of unsteady loads on bearing life. An experiment was conducted on a 16V280 diesel generator set shutdown process, and a driveline dynamic model was established. The cumulative damage value that connects unsteady loads and bearing life was introduced to quantify the effect of unsteady loads on the bearing life during the shutdown process. The unsteady loads included torque fluctuation and collision forces. The results showed that reducing the driveline key gap and increasing the coupling stiffness can decrease the combined load on bearings and improve bearing life. A large stiffness coupling was designed to achieve shutdown smoothness and a 43.19% reduction in bearing life damage, confirming the design method’s feasibility concerning bearing life.

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Transmission path and influencing factors of abnormal broadband noise and vibration of the generator induced by the driveline

Cited by 2 publications

References 25 publications

Semi-active fuzzy control of a powerpack with magneto-rheological dampers at full operating conditions

Semi-active fuzzy control of a powerpack with magneto-rheological dampers at full operating conditions

Influence of the shutdown process of the driveline on the generator bearing life in the diesel generator set

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