100吨汽车起重机底盘混合悬架系统设计与分析
发布时间：2018-11-16 13:37
【摘要】：悬架技术是汽车起重机底盘的关键技术。针对大吨位汽车起重机特殊使用要求,油气悬架和钢板弹簧悬挂被广泛的接受和应用。油气悬架具有较好的弹性特性,可以提高车辆舒适性、操纵稳定性等性能,更重要的是它能方便地控制汽车运动姿态、实现多轴车辆的轴荷均布,使得整车的通过性和适应性大大提高。钢板弹簧悬架适用范围广,安装和维护成本低,因而被广泛采用,但是钢板弹簧悬架不能很好的适应汽车起重机的特殊需求。 本文查阅了大量悬架技术的资料与文献,基于目前悬架技术的分析,包括油气悬架和钢板弹簧悬架的特性分析,总结出其各自的工作特性和应用特性。结合100吨汽车起重机底盘使用情况,给出悬架系统设计的总体要求,得出轴荷均布问题是汽车起重机底盘悬架系统要重点解决的问题。 首先,通过静态受力分析确定轴距；然后,结合整车结构形式确定悬架系统布置方案；最后,通过初步的动态分析,给出油气悬架和钢板弹簧悬架混合使用时相互之间的匹配要求。通过对混合悬架系统的动态仿真,选取比较容易调整和控制的油气弹簧参数,改变油气悬架阻尼特性,保证了整车前、后悬架系统动态响应的一致性,确保整车悬架系统在静载和动载情况下都能满足起重机的特殊要求。
[Abstract]:Suspension technology is the key technology of truck crane chassis. Oil-gas suspension and leaf-spring suspension are widely accepted and applied to large-tonnage truck cranes. The hydro-pneumatic suspension has better elastic characteristics, which can improve the vehicle comfort and control stability. More importantly, it can easily control the motion posture of the vehicle and realize the uniform distribution of the axle load of the multi-axle vehicle. So that the passage and adaptability of the whole vehicle is greatly improved. Leaf spring suspension is widely used because of its wide application range, low installation and maintenance cost, but it can not meet the special needs of truck crane. Based on the analysis of suspension technology at present, including the characteristic analysis of oil and gas suspension and leaf spring suspension, their working characteristics and application characteristics are summarized in this paper. Combined with the application of 100 ton truck crane chassis, the general requirements of suspension system design are given, and it is concluded that the problem of uniform distribution of shaft load is an important problem to be solved in automobile crane chassis suspension system. Firstly, the wheelbase is determined by static force analysis, and then, the suspension system layout scheme is determined in combination with the whole vehicle structure. Finally, through preliminary dynamic analysis, the matching requirements between oil and gas suspension and leaf spring suspension are given. Through the dynamic simulation of the hybrid suspension system, the parameters of the oil and gas spring which are easy to adjust and control are selected to change the damping characteristics of the suspension and ensure the consistency of the dynamic response of the suspension system before and after the vehicle. Ensure that the whole vehicle suspension system can meet the special requirements of crane under static and dynamic load.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH213.6
本文编号：2335650
[Abstract]:Suspension technology is the key technology of truck crane chassis. Oil-gas suspension and leaf-spring suspension are widely accepted and applied to large-tonnage truck cranes. The hydro-pneumatic suspension has better elastic characteristics, which can improve the vehicle comfort and control stability. More importantly, it can easily control the motion posture of the vehicle and realize the uniform distribution of the axle load of the multi-axle vehicle. So that the passage and adaptability of the whole vehicle is greatly improved. Leaf spring suspension is widely used because of its wide application range, low installation and maintenance cost, but it can not meet the special needs of truck crane. Based on the analysis of suspension technology at present, including the characteristic analysis of oil and gas suspension and leaf spring suspension, their working characteristics and application characteristics are summarized in this paper. Combined with the application of 100 ton truck crane chassis, the general requirements of suspension system design are given, and it is concluded that the problem of uniform distribution of shaft load is an important problem to be solved in automobile crane chassis suspension system. Firstly, the wheelbase is determined by static force analysis, and then, the suspension system layout scheme is determined in combination with the whole vehicle structure. Finally, through preliminary dynamic analysis, the matching requirements between oil and gas suspension and leaf spring suspension are given. Through the dynamic simulation of the hybrid suspension system, the parameters of the oil and gas spring which are easy to adjust and control are selected to change the damping characteristics of the suspension and ensure the consistency of the dynamic response of the suspension system before and after the vehicle. Ensure that the whole vehicle suspension system can meet the special requirements of crane under static and dynamic load.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH213.6
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