论文部分内容阅读
本文以柴油机中作最复杂运动的主副连杆机构为研究对象(单列、并列和叉形连杆都是主副连杆的特例)。首走推导出连杆上任一质点的精确的运动学公式,并获得连杆上任一微质量的复杂的惯性力计算式,随后在连杆惯性力、燃气压力和活塞组的往复惯性力共同作用下求得活塞侧推力以及活塞销、副连杆销、曲柄销和各轴承的负荷。同时分析了连杆螺栓和大头結合面的受力情况。这就为柴油机的强度计算、平衡和振动计算提供可靠的受力边界条件。在分析各承载表面的负荷分布形式时,作者提出应该结合弹性接触分析方法,以使由于弹性变形而引起的负荷不均匀分布形式得到如实的反映。
In this paper, the diesel engine as the most complex of the main and auxiliary link mechanism for the study (single, parallel and forked connecting rod is a special case of the main and auxiliary links). The first step derives the exact kinematic formula for any point on the link and obtains the complex inertia force formula for any slight mass on the link and subsequently interacts with the inertia force of the connecting rod, the gas pressure and the reciprocating inertia of the piston set Under the piston side thrust and piston pin, vice link pin, crank pin and the bearing load. At the same time, the stress of connecting rod bolt and bulkhead is analyzed. This provides reliable stress boundary conditions for the calculation of the strength, balance and vibration of diesel engines. When analyzing the load distribution pattern of each bearing surface, the author proposed that the method of elastic contact analysis should be combined so that the uneven distribution of load due to elastic deformation can be faithfully reflected.