在运动的起点和终点处，速度发生突变。此时加速度理论上为无穷大，产生无穷大的惯性力，机构将产生极大的冲击，称为刚性冲击。
而通过增加轮对与侧架的弹性悬挂可以有效减弱这种瞬时刚性冲击。
It was suggested to decrease such an instantaneous stiff impact load by supplementing elastic suspension between the wheelset and side frame.
从多年使用的情况来看，我国地铁客车橡胶缓冲器，普遍存在刚性冲击、间隙冲撞等现象，橡胶片破损严重。
Years of operation of rubber draft gears on metro cars finds that there Cxi5t widely therein such problems as rigid impact, collision caused by clearances. The rubber pieces are damaged severely.
为避免互逆活塞式砂浆泵在运动过程中出现的“刚性冲击”，对凸轮机构进行了修正设计，并分析了修正凸轮机构的运动特性。
For the avoidance of rigidity impact of commutative piston mortar pump in movement, the amendatory CAM mechanism was designed, and the characteristic of movements was analyzed.
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