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本文在推导出导叶两段关闭压力上升瞬时值计算公式的基础上,进一步推导出压力上升最大值在两种可能位置(第一段末或第二段末)时,第二段临界关闭时间(S_(s2)临界)的确定公式。
Based on the derivation of the formula of the instantaneous value of the closing pressure rise of the two guide vanes, the paper further deduces that when the maximum value of the pressure rise is at two possible positions (at the end of the first segment or the end of the second segment), the critical closing time of the second segment (S_ (s2) critical) to determine the formula.