Taken account of the influence of stochasticness and fuzziness, multi objective reliability fuzzy optimization model of DH106 dynamic box is established.

考虑随机性、模糊性的影响，建立了DH106动力箱的多目标可靠性模糊优化模型。

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On these basis, the author puts forward the method calculating dynamic reliability and fault rate of mine machinery, and demonstrates the practical value of fuzzy information.

在此基础上给出了矿井机械动态可靠度和故障率的计算方法，指明了模糊信息的实用价值。

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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。

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