【摘要】 根据损伤等效当量折算理论，结合起落架载荷谱的特点，提出了平均应力相同的载荷谱；平均应力不相同，但最小应力却相同的载荷谱；已知应力比的载荷谱等三种情况下损伤等效当量折算方法。该方法无需进行危险部位损伤度的计算，便于工程应用，效果良好。更多还原

【Abstract】 Based on the theory of equivalent damage calculation and the character of landing gear fatigue load spectrum. The calculation method of equivalent damage is given for three states:The mean stress of spectrum iS same;The mean stress of spectrum is not same but its minimum stress is same;Ratio of stress of spectrum is known. It is very convenient and efficient to use the method in engineering and needless to calculate the damage degree at the critical sec- tions.更多还原