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arXiv · 2005.10985

Apply VGGNet-based deep learning model of vibration data for prediction model of gravity acceleration equipment

SeonWoo Lee·HyeonTak Yu·HoJun Yang·JaeHeung Yang·GangMin Lim·KyuSung Kim·ByeongKeun Choi·JangWoo Kwon
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Abstract

Hypergravity accelerators are a type of large machinery used for gravity training or medical research. A failure of such large equipment can be a serious problem in terms of safety or costs. This paper proposes a prediction model that can proactively prevent failures that may occur in a hypergravity accelerator. The method proposed in this paper was to convert vibration signals to spectograms and perform classification training using a deep learning model. An experiment was conducted to evaluate the performance of the method proposed in this paper. A 4-channel accelerometer was attached to the bearing housing, which is a rotor, and time-amplitude data were obtained from the measured values by sampling. The data were converted to a two-dimensional spectrogram, and classification training was performed using a deep learning model for four conditions of the equipment: Unbalance, Misalignment, Shaft Rubbing, and Normal. The experimental results showed that the proposed method had a 99.5% F1-Score, which was up to 23% higher than the 76.25% for existing feature-based learning models.

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SeonWoo Lee, HyeonTak Yu, HoJun Yang, JaeHeung Yang, GangMin Lim, KyuSung Kim, ByeongKeun Choi, JangWoo Kwon. 2020-05-22. Apply VGGNet-based deep learning model of vibration data for prediction model of gravity acceleration equipment. https://arxiv.org/abs/2005.10985

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