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模拟了在列车纵向动力作用时,平面心盘承载式转向架心盘处的作用力。计算结果表明,空车心盘冲击载荷一直存在。摇枕点头运动时,上下心盘之间的塑料和金属衬垫潜在的缺陷或损伤,增加了点接触载荷。纵向冲动作用下,在心盘壁产生的垂向摩擦力是心盘表面产生点载荷的重要因素。边缘壁摩擦产生的剪切载荷可能是引起心盘塑料垫片边缘破坏失效的主要原因。增大心盘承载面的直径将使心盘壁的接触载荷增大,但不会明显减小上心盘和心盘衬垫之间的垂向点载荷。
Simulate the longitudinal force in the train, the center of the mandrel plate bearing force. The calculation results show that the impact load of empty car heart plate always exists. Bolster nodded movement, the upper and lower disc between the plastic and metal liner potential defects or damage, an increase of point contact load. Longitudinal impulse, the vertical friction force generated in the heart wall is an important factor in the point surface of the heart plate load. The shearing load caused by the friction of the edge wall may be the main reason for the failure of the edge of the plastic disc of the heart disc. Increasing the diameter of the platter bearing surface will increase the contact load on the platter wall without significantly reducing the vertical point load between the upper platter and the heart platter.