温度对转炉结构动力特性的影响

Temperature Effect on the Dynamic Characteristics of a Converter Structure

通过对转炉模型进行不同温度下的脉冲激励和正弦扫描激励试验,得到了不同实验条件下的频谱特性及三维频谱图。应用最小二乘原理,对频率随温度的变化作了定量的分析和研究。建立了数学模型,给出了不同尖峰频率随温度变化的曲线。

In this paper the characteristics of frequency spectrum and three-dimension figures of frequency spectrum under different test condition are ohtained by making the tests of pulse excitation and sine scanning excitation under different temperatures. The changes of frequency with the temperature are analyzed and studied by applying the least square principle. The mathematical models are established and curves of the sharp frequency with temperature changes are drawn.