【摘要】 为平衡某6M发动机曲轴箱内压力,故在其曲轴箱轴承座上增开两平衡孔;通过对曲轴箱开孔前后的三个工况下的有限元分析得到:加孔后曲轴箱应力和变形值与加孔前的曲轴箱相当,因此可以认为加孔后的曲轴箱的可靠性是可以得到保证的。更多还原

【Abstract】 In order to balance the inner-pressure in 6M engine crankcases,two balancing holes are added in each bearing block. Analysizing the three conditions of the finite element before and after the adding balancing holes,it indicates that the stress and deformation value are equivalent whether the balancing holes are added or not. Therefore,it concludes that the reliability of the crankcase can be guaranteed after adding balancing holes.更多还原