摘要
为国标GB9222－88中水管锅炉锅筒低周疲劳寿命计算撰写的背景论文之一，主要阐述总则中“要不要进行疲劳计算的判别条件和考核点”的基础理论和有关数值的详细推算过程。
篢his paper is one of background theses of Low cycle fatigue life calcula-tion of the drum in water-tube boiler,which acts as a national standard now,This paper explains the basic theory and the deduction for judging conditions and exami-nation points in general rules of the Calculation.
