摘要
本研究对危化品运输车罐内液体在冲击晃动时的流固耦合过程进行了详细分析。我们深入研究了罐内液体在冲击晃动时的气-液两相分布,评估了其对防波板产生的侧向力Fy,并探讨了罐体整体的等效应力和变形形变。研究结果表明,罐内液体的晃动具有周期性衰减的特性,最终会趋于水平状态。罐内液体对所有防波板产生的侧向力Fy在初始阶段迅速增大,随后逐渐减小。值得注意的是,不同防波板所受的侧向力Fy峰值有所不同,其中离前封盖最近的防波板1受到的侧向力Fy峰值最大。此外,我们还发现罐体整体的最大形变值为1.5223 mm,而罐体整体的等效应力最大值为115.12 MPa,这一数值低于碳素钢的屈服强度,因此可以判断该罐体的整体结构强度满足使用要求。
The fluid structure coupling process of liquid sloshing in the tank of hazardous chemicals transport vehicle was studied,the gas-liquid two-phase distribution of liquid sloshing in the tank,the lateral force Fy generated on the wave deflector,and the equivalent stress and deformation of the entire tank body were also analyzed.The results show that the liquid sloshing in the tank exhibited a periodic attenuation trend,and the liquid was ultimately in a horizontal position.The lateral force Fy generated by the liquid in the tank on all the wave deflectors first increased rapidly and then decreased.The peak value of the lateral force Fy generated by the liquid on each wave deflector were different,and the wave deflector 1 closered to the front cover was subjected to the maximum peak value of the lateral force Fy.The maximum deformation of the entire tank body was 1.5223 mm,and the maximum equivalent stress of the entire tank body was 115.12 MPa,which was lower than the yield strength of carbon steel.Therefore,the overall structural strength of the tank body met the requirements for use.
出处
《商用汽车》
2024年第2期88-91,共4页
Commercial Vehicle
关键词
危化品运输车
罐体
防波板
流固耦合
Hazardous chemicals transport vehicle
Tank body
Wave deflector
Fluid structure coupling
