汽车强化试验中当量关系的估计方法

• 作 者: 魏德永 王学义 隋军
• 机 构: 长春汽车研究所,长春汽车研究所,长春汽车研究所
• 出 处: 汽车技术
• 发表日期: 1993年04期
• 关键词: 强化试验 可靠性增长 浴盆曲线 估计法 失效概率 基本假设条件 偶然失效期 早期失效期 构件损伤 故障数

通过对汽车构件、总成或整车破坏的直接因素和间接因素的分析,提出了在满足强化试验基本假设条件情况下用于描述构件强化当量关系的三种估计法,即寿命统计估计法、载荷谱估计法和系统估计法,并利用描述汽车产品失效的浴盆曲线及可靠性增长模式,提出了总成或整车强化当量关系的估计方法。

Through analyzing the direct and indirect factors of automobile component, assembly or vehicle damage, three kinds of estimation methods are proposed to describe the strengthening equivalence of components under the premise of satisfying the basic assumptions of strengthening test, namely the life-statistics estimation method, Load spectrum estimation method and system estimation method. Based on the bathtub curve and reliability growth model that describe the failure of automotive products, an estimation method of the enhanced equivalence between the assembly and the whole vehicle is proposed.