王 强,霍文辉,李 臻,杨 鸽

在前起落架疲劳试验前，首先通过标定试验获得通过应变—地面载荷计算公式，而后进行载荷谱实测获取前起落架飞行实测应变数据，最后对实测数据进行处理，获取起落架疲劳试验载荷谱。应变片的精度、加载方式、附加重量等对地面载荷标定公式均存在影响，本文着重分析了假轮、机轮和轮胎附加重量对地面载荷的影响，同时对某飞机前起落架地面标定的应变—地面载荷计算公式进行了修正，使实测起落架地面载荷更准确、真实。

地面载荷；应变；载荷标定

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