炼钢厂噪声特性分析
Analysis of Characteristics of Noise in Steelmaking Factory
DOI: 10.12677/MEng.2022.93031, PDF,    国家自然科学基金支持
作者: 赵 岩, 李世昌：东北大学冶金学院，辽宁 沈阳；雷 洪：东北大学冶金学院，辽宁 沈阳；东北大学材料电磁过程研究教育部重点实验室，辽宁 沈阳
关键词: 炼钢厂；噪声；A计权声级；盒计数维数；变分维数；信息维数；Steelmaking Plant； Noise； A-Weighted Sound Level； Box-Counting Dimension； Variational Dimension； Information Dimension
摘要: 为了准确地描述炼钢厂噪声特性，采用专业传声器数据采集系统和VA-Lab2软件对炼钢厂典型冶金设备的噪声进行测量，应用自主开发软件分析炼钢厂不同设备的噪声频谱、总声级、盒计数维数、变分维数和信息维数，并给出炼钢厂噪声和乐器乐声的区别。结果表明，在A计权声级下，转炉、LF炉、RH炉的噪声倍频程变化规律相似，古筝、江南丝竹和手鼓的乐声倍频程变化规律相似，且乐器的倍频程高于炼钢设备的倍频。转炉、钢包炉、RH炉的噪声盒计数维数约为1.01，变分维数约为1.31，信息维数约为4.1。声音时域信号的分形维数(盒计数维数和变分维数)能区分炼钢厂噪声和乐声，而声音频域信号的信息维数则无法区分炼钢厂噪声和乐声。
Abstract: In order to describe the characteristics of the noise in a steel-making plant accurately, the noise of the typical metallurgical reactors in a steel-making plant was measured by the professional microphone data acquisition system and VA-Lab2 software, and the noise spectrum, total sound level, box-counting dimension, variational dimension and information dimension of different metallurgical reactors in steel plant were analyzed by home-made source codes. The results show that, on the base of A-weighted sound level, convector, RH furnace and ladle furnace have a similar rule on the sound octave, Guzheng, Jiangnan traditional stringed and woodwind instruments and tabor have a similar rule on the sound octave, and the sound octave of musical instruments is greater than that of metallurgical reactors. The noise box dimension converter, ladle furnace and RH furnace are 1.01, the variational dimension is 1.31, and the information dimension is 4.1. The fractal dimension (box-counting dimension and variational dimension) of the sound signal in the time domain can differentiate between the noise in the steelmaking plant and the music, but the information dimension of the sound frequency domain signal can’t differentiate between the noise in the steelmaking plant and the music.
文章引用：赵岩, 李世昌, 雷洪. 炼钢厂噪声特性分析[J]. 冶金工程, 2022, 9(3): 239-247. https://doi.org/10.12677/MEng.2022.93031

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