Fuzzy average equivalent dynamic load of arm bearing is calculated by using fuzzy mathematics method and fuzzy comprehensive evaluation. Fuzzy reliability life of arm bearing is calculated.
利用模糊数学方法，通过模糊综合评判，确定了转臂轴承的模糊平均当量动载荷，并计算了转臂轴承的模糊可靠性寿命。
At last I calculate the life indexes and fuzzy reliability indexes of side-abrasion failure of rod string failure, and analyze them generally.
再利用模糊可靠性理论计算管杆偏磨失效寿命指标和模糊可靠性指标，最后对其进行综合分析。
Numerical results show that the fuzzy reliability analysis of fatigue life tends to provide more safety than traditional analysis does.
数值结果表明，常规设计下结构的疲劳寿命可靠度偏于危险。
Numerical results show that the fuzzy reliability analysis of fatigue life tends to provide more safety than traditional analysis does.
数值结果表明，常规设计下结构的疲劳寿命可靠度偏于危险。
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