机翼主梁结构模拟件当量加速腐蚀关系研究

Research on the Equivalent Accelerated Corrosion Relation of the Plane Wing’s Main Beam Structure Imitate Piece

摘要:

为了进行腐蚀条件下飞机结构的疲劳寿命与日历寿命评定,需对结构模拟件进行加速腐蚀试验,所用当量加速关系是否准确关系到结果的可靠性。通过对某机翼主梁结构模拟件进行加速腐蚀试验研究,提出了腐蚀影响系数法,并应用该方法计算了该结构模拟件在某加速谱下的当量加速关系。

Abstract:

The accelerating corrosion experiments are necessary to evaluate the fatigue life and the calendar life of stimulated parts in corrosive condition. The accuracy of equivalent accelerating relation in application relates to the reliability of results. Based on the accelerating corrosion experiments for the stimulated main beam of the wing, the paper puts forward a method to fix the equivalent accelerating relation the corrosion influence coefficient method, and applies this method at one accelerating spectrum.