摘要
变幅系统是消防云梯车的重要组成部分,对整车工作稳定性起着决定性作用。针对目前消防云梯车变幅工况中存在的问题,主要是对平衡阀的动态特性展开研究,并得出平衡阀是影响变幅过程中液压波动的主要原因。基于此,应用AMESim对平衡阀的结构进行改进设计,选取适当大小的阻尼孔直径,仿真结果表明,改进后的变幅系统液压波动问题得到有效改善,达到设计预期,具有一定参考价值。
Luffing system is an important part of fire ladder trucks,and plays a decisive role on the working stability.Aiming at the existing problems of fire ladder trucks in luffing conditions,researched on the dynamic characteristics of the main balancing valve,and drew the conclusion that balancing valve is the main cause of hydraulic fluctuations in luffing process,based on this,used AMESim to optimize the design of the structure of the balancing valve,selected the appropriate size of the orifice diameter. The simulation results showed that the hydraulic fluctuations in the luffing system had been effectively improved after the optimization,and achieved the desired aims. The solution will be reference for similar applying.
出处
《机械强度》
CAS
CSCD
北大核心
2016年第2期221-224,共4页
Journal of Mechanical Strength
基金
国家自然科学基金项(61440041)资助~~
