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客车转向架中央悬挂装置中装有油压减振器。在制造和修理油压减振器时阻力系数是交付参数,该系数按工作曲线图确定,假定阻力与活塞杆运动速度是线性关系。这种减振器工作能力的评定方法便于在制造时使用。参考文献〔2〕证明,根据线性关系确定阻力系数是错误的,应把阻力与活塞杆运动速度的关系看作是平方关系。已查明,按阻力与速度是线性关系计算的阻力系数值,同按与力变化的平方规律得到的阻力系数值比较,高15％。阻力系数偏差超出规定限度会
Passenger car bogies are equipped with hydraulic shock absorbers in the center suspension. The drag coefficient is the delivery parameter when manufacturing and repairing the hydraulic shock absorber, which is determined from the working curve, assuming a linear relationship between drag and piston rod speed. This shock absorber working ability assessment method to facilitate the use of manufacturing. Reference [2] proved that based on the linear relationship to determine the drag coefficient is wrong, the relationship between resistance and piston rod speed should be regarded as the square relationship. It has been ascertained that the resistance coefficient calculated from the linear relationship between resistance and speed is 15% higher than the resistance coefficient obtained from the square law of force variation. Resistance coefficient deviation beyond the limit will be