Active control of gear pair vibration with an electronically commutated motor as actuator

Benzel, Timo; Möckel, Habil. Andreas

doi:10.1109/edpc.2014.6984426

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…Such an approach was demonstrated by Benzel and Möckel [3] in which they were able to achieve a net reduction of 12 dB in the housing vibration. In [2], it was further shown that the system is effective for varying speeds and loading conditions, as well. The studies, however, did not elaborate on the interaction between the torque ripples produced by the controller with the gear mesh dynamics.…”

Section: Introductionmentioning

confidence: 99%

A fundamental investigation of the interaction and impact of controlled torque ripples on gear mesh dynamics

Dave,

Neufond,

Nordmann

et al. 2023

ACM

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Gear trains are plagued by self-excited vibrations that are concentrated at the mesh frequency and its harmonics due to their varying mesh stiffness and deviations from the ideal involute profile. This is even more pronounced in spur gears due to their lower contact ratio in comparison to helical gears. For an electric vehicle, due to the absence of an internal combustion engine, noise and vibration signature of the gearbox becomes an important aspect of the vehicle's comfort. However, the presence of a traction motor offers the advantage of having a potential actuator for actively countering these vibrations without adding any additional weight or packaging constraints. This paper presents a fundamental insight into the effect of introducing controlled torque ripples at the mesh frequency and its harmonics, on the noise and vibration characteristics, and the efficiency of the gear mesh. The study utilises a dynamic model of a single stage gear train that accounts for the time varying mesh stiffness and sliding friction at the gear teeth contact. This model is used to provide an understanding of gear mesh dynamics and their resulting interaction with the imposed torque ripples. The study demonstrates the positive effects that controlled torque ripples can have on the noise and vibration behaviour of gear trains and the underlying mechanics that govern this improvement.

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Section: Introductionmentioning

confidence: 99%

A fundamental investigation of the interaction and impact of controlled torque ripples on gear mesh dynamics

Dave,

Neufond,

Nordmann

et al. 2023

ACM

View full text Add to dashboard Cite

show abstract

“…They achieved 8-13 dB attenuation in the gearbox housing vibration levels and correspondingly 5-8 dB reduction in measured gear whine noise levels at the first and second operating gear mesh frequencies. Benzel and Mockel [9,10] presented an active control system to suppress gear pair vibrations utilizing an electronically commutated motor as an actuator. They proposed an adaptive feed-forward controller based on the Filtered-x Least Means Squares (FxLMS) algorithm capable of attenuating gear pair vibration in a helical gear pair system.…”

Section: Introductionmentioning

confidence: 99%

Active vibration control of gearbox housing using inertial mass actuators

Okda,

Nampally,

Fontana

et al. 2024

Smart Mater. Struct.

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The efficiency of transmission systems is influenced by the generation of vibrational and acoustic emissions. Lightweight transmission systems are even subjected to higher levels of vibration. In this paper, an economical active vibration control system is developed to control the vibration levels of an automotive gearbox housing. The gearbox's mounting points are targeted to reduce the transmitted vibrations to the car cabin. The active control system aims to target high-frequency vibrations between 1000 Hz and 5000 Hz. A compact piezoelectric inertial mass actuator is designed and tested on a gearbox-constructed setup that simulates the vibrations and noise similar to a commercial automotive transmission system. The developed test-rig is excited by a piezo stack actuator at the input shaft. Filtered-x least mean square algorithm is implemented on a high-speed microcontroller, and the vibration levels are significantly reduced using the active system. An average reduction of approximately 8.5 dB is achieved between 1000 Hz and 1500 Hz, an average reduction of approximately 14 dB is obtained between 1500 and 2000 Hz, and an average reduction of 10.8 dB is attained between 2500 and 5000 Hz.

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Feedforward Compensation of Torque Harmonics in Permanent Magnet Synchronous Machines

2020

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Active control of gear pair vibration with an electronically commutated motor as actuator

Cited by 5 publications

References 7 publications

A fundamental investigation of the interaction and impact of controlled torque ripples on gear mesh dynamics

A fundamental investigation of the interaction and impact of controlled torque ripples on gear mesh dynamics

Active vibration control of gearbox housing using inertial mass actuators

Feedforward Compensation of Torque Harmonics in Permanent Magnet Synchronous Machines

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