The finite element method is used to analyse the natural vibration of a exhaustchimney with steel structure in a nuclear power plant, such as the first, the second frequency and their model.
利用有限元法分析了某核电站排气钢塔的固有振动特性，即一阶、二阶振动频率及振型。
2
The suction exhaust theory is discussed, and problem about the optimum chimney form is introduced in this paper.
本文通过对负压排气原理的讨论，提出了优化烟囱形状的问题。
3
The practical design scheme of graphitization exhaust fume system was put forward according to present situation. The chimney neck firing and automatical control were described.