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.
采矿系统的布放回收作业必须克服海洋环境的影响,因此对布放回收作业受海洋载荷影响研究以及海洋载荷(尤其是水动力)的计算是非常有必要的。
The deployment and retrieval of mining system are significantly affected by ocean environment, thus it is essential to consider the ocean load on mining system and calculate the hydraulic forces.
过热蒸汽疏水阀能在低温、低压、小载荷的顽劣工况下结合出过热蒸汽失踪时产生的低温凝聚水。
Superheated steam trap at low temperature, low pressure, a small load of unruly conditions disappeared with the superheated steam generated when the low-temperature condensed water.
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