Simulation calculation and test experiment of axial stress of connecting bolt on fan tower based on longitudinal wave

Yue Sun; Xu Sun; Yuheng Ning; Yong Zhao; Bing Yang; Rongguo Jiang; Guohui Zhang

doi:10.1117/12.2682887

16 June 2023 Simulation calculation and test experiment of axial stress of connecting bolt on fan tower based on longitudinal wave

Yue Sun, Xu Sun, Yuheng Ning, Yong Zhao, Bing Yang, Rongguo Jiang, Guohui Zhang

Author Affiliations +

Proceedings Volume 12703, Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023); 127031B (2023) https://doi.org/10.1117/12.2682887
Event: Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023), 2023, Hong Kong, China

Abstract

In this paper, COMSOL simulation software is utilized to analyze the propagation law of longitudinal wave and the effect of different parameters on ultrasonic axial stress measurement. The results show that there is no reflection phenomenon when the longitudinal wave signal leaves the top of the bolt. When the ultrasonic wave propagates a certain distance, the waveform conversion is generated on the discontinuous structure, and the edge transverse wave is formed after the longitudinal wave, which is accompanied by the entire ultrasonic propagation process. The change of bolt clamping length will modify the slope of the corresponding curve between time and axial stress. By fitting the relationship curve between axial stress and time, the corresponding relationship between axial stress and time is obtained. The experimental error is 3.0%, which proves the accuracy of measuring bolt preload by longitudinal wave method.

Citation Download Citation

Yue Sun, Xu Sun, Yuheng Ning, Yong Zhao, Bing Yang, Rongguo Jiang, and Guohui Zhang "Simulation calculation and test experiment of axial stress of connecting bolt on fan tower based on longitudinal wave", Proc. SPIE 12703, Sixth International Conference on Intelligent Computing, Communication, and Devices (ICCD 2023), 127031B (16 June 2023); https://doi.org/10.1117/12.2682887

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