摘要
建立罐车侧倾数学模型,推导罐体液体晃动附加力矩和罐车倾覆力矩的计算公式。为使罐体液体晃动附加力矩和罐车倾覆力矩降到最小,提出纵板式罐体的概念。基于罐体结构设计理论,设计多纵板式罐体和动纵板式罐体,运用流体仿真软件Fluent对罐车侧向瞬时制动和匀速转向工况下多纵板式罐体与传统罐体内液体晃动特性进行仿真。结果表明:多纵板式罐体将液体对罐体单侧内壁的瞬时冲击力分解到了双侧内壁和弧形纵向防波板上,从而降低了罐体因单侧内壁受力过大而侧翻的概率。设计动纵板式罐体结构及其智能化防侧翻系统,通过对罐车罐体质心和底盘质心的实时协调控制,实现罐车的智能化防侧翻。
A mathematic model of tanker rollover is built. Based on the model,the formula of liquid sloshing＇s additional moment and overturning moment of tanker is derived. To minimize the value of liquid sloshing＇ s additional moment and overturning moment,the concept of tank with longitudinal baffle is put forward. Based on tank structure design theory,the tank with multiple longitudinal baffle and the tank with moving longitudinal baffle is designed. The study applies Fluent software to simulate liquid sloshing characteristics for tank with multiple longitudinal baffle as well as for traditional tank under the lateral instantaneous braking condition and uniform steering working condition. It turns out that the tank with multiple longitudinal baffle decomposes liquid impact on unilateral wall onto double side walls of tank and arc-shaped longitudinal baffle. Thus,the rollover probability of tanks is reduced by decreasing the impact on unilateral wall. The design of tank structure with moving longitudinal baffle and intelligent anti-rollover system finally achieves the intelligent control of tanker anti-rollover through real-time coordinated control of tank＇s center of gravity and chassis＇ s center of gravity.
出处
《山东交通学院学报》
CAS
2016年第3期16-23,49,共9页
Journal of Shandong Jiaotong University
关键词
防侧翻罐体
纵向防波板
液体冲击
倾覆力矩
Fluent仿真
anti-rollover tank
longitudinal anti-wave baffle
liquid impact
overturning moment
Fluent simulation
