单位气缸阻尼系数问题的研究(一)——阻尼系数随曲柄转角变化的规律

Investigation on Damping Coefficient of Torsional Vibration per Cylinder(Part 1)——Variation with Crankangle

摘要本文探讨了解决发动机阻尼系数问题的途径;分析了曲柄连杆机构在轴系扭转振动中的几何运动关系及各部件阻尼系数随曲柄转角的变化规律.最后通过能量法给出了转化到曲轴中心处的单位气缸当量阻尼系数.

Approaches to solving problem of torsional vibration damping coefficient per cylinder of engines was discussed. Geometric and kinematic relationships of the parts of crank-rod mechanism in torsional vibration was analyzed and variations of damping coefficient of cach part of the mechanism with crankangle were derived. A equivalent damping coefficient per cylinder was presented.