考虑钻机(水)龙头和转盘主轴承工作载荷的模糊性及可靠性要求，应用模糊数学基本原理求得平均计算载荷，从而计算出主轴承的模糊可靠性寿命。
The mean value of work loads on a shaft bearing of swivel and rotary table is determined by basic principles of fuzzy theory, considering the loads' fuzziness and the requirement for reliability.
从机械可靠性设计理论及模糊数学理论出发，给出了盘形制动器工作参数的模糊可靠性设计方法，并附有应用实例。
According to the reliability design theory and Fuzzy mathematics theory, put forward a Fuzzy reliability design method of working parameter for plate brake and give some application examples.
本文利用模糊可靠性优化设计理论和虚拟仿真技术对输送机进行了新的设计，使其更好地适应工作要求。
This article designed the conveying machine using fuzzy reliability-optimization design theory and the dynamic simulation technology to adapt the work requirement well.
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