Mechanics of Electrical Transmission Line Robot Inspector: Pendulum as a Dynamic Vibration Absorber

Reza, Bahrami Mohammad

doi:10.1051/e3sconf/202016203004

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…The research mainly optimized the frequency of DVAs by adjusting its parameters to minimize the acoustic index. The frequency optimization of DVAs improves the noise reduction effect of the DVAs and finally realizes the efficient noise control of power equipment [7]. However, during the further researtches, the author found the sound radiation of the power equipment will be enhanced when DVAs are installed in the wrong position.…”

Section: Introductionmentioning

confidence: 99%

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A position optimization strategy of the dynamic vibration absorber for the noise control of the power equipment

Geng¹,

Ma²,

Jin³

et al. 2022

Vib. proced.

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Power equipment shows obvious low frequency line spectrum noise characteristics due to the power frequency. The effective noise control of the power equipment can be achieved by installing dynamic vibration absorbers (DVAs) on the structure surface of electrical equipment. However, if DVAs are not installed properly, considering the cases that they are installed at the vibration mode node position, the low radiation vibration mode and the redistribution of the integrate vibration power, the vibration and noise absorbing performances of DVAs may degrade. In order to achieve efficient vibration absorption and noise reduction on the power equipment, this paper proposes a low-frequency noise reduction technology for power equipment based on DVAs. The position optimization of the DAVs using in the power equipment is studied for the first time. Aimed at the single frequency radiated sound power of equipment, the integrate radiated sound power of the equipment is minimized through adjusting the position parameters of DVAs. A numerical case is studied to verify the effectiveness of the proposed DVAs position optimization. The results show that the noise control effect of the power equipment with the optimized DVAs is significantly improved. The method proposed in this paper solves the noise problem of the power equipment, which provides reference for power noise control.

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Section: Introductionmentioning

confidence: 99%

“…The application of the DVAs technology in power system is very few to be seen. Reza [7] designed a new type of DVA to reduce the vibration of power transmission line. This research shows the possibility of usage of the double pendulum as the DVA in electrical transmission.…”

Section: Introductionmentioning

confidence: 99%