液罐车侧倾稳定性研究

Study on roll stability ofpartially-fill tank truck

考虑液体质心横向移动产生附加力矩及晃动阻尼影响的基础上建立液罐车侧倾动力学模型,研究不同外激励输入对车辆侧倾稳定性影响。结果表明,侧向加速度增加使得贮罐内的液体晃动振荡周期变长且横向载荷转移率幅值也随之增大,明显降低车辆侧倾稳定性。

The roll dynamic model of tank truck is established to study the impact of different external excitation input on roll stability of vehicle based on the effect of additional moment and sloshing damping caused by lateral movement of liquid mass center. The results show that with the increase of lateral acceleration, the oscillation period of liquid sloshing in tank becomes longer and the amplitude of lateral load transfer rate increases, which reduces the roll stability of vehicleultimately.