摘要
针对履带车辆悬架减振性能优化的问题,将滚珠丝杠惯容器与仿生X形结构结合,设计了一种含惯容器的仿生X形履带车辆悬架。首先,以悬架单体为研究对象,以悬架位移传递率为性能指标,进行振动分析,结果表明,相较于传统弹簧-阻尼悬架和仿生X形悬架,加入惯容器后,悬架的性能更好、主频更低,且当输入激励在5~11 Hz范围内时,系统的位移传递率最低,减振效果最好。其次,建立了一组履带车辆半车模型,以3种不同等级的随机路面信号作为激励,对车辆的点头加速度进行分析,对比传统仿生X形悬架,含惯容器悬架的点头加速度分别降低了9.3%、42.98%以及65.91%,且路面等级越高,路况越复杂,悬架点头加速度越低,减振效果越好。研究结果为利用惯容器和仿生X形结构,设计减振效果更好的新型履带车辆悬架提供了参考。
Aiming at the problem of vibration reduction performance optimization of tracked vehicle suspension,a bionic X-shaped tracked vehicle suspension with an inerter was designed,by combining the ball screw inerter with the bionic X-shaped structure.Firstly,taking a single suspension as the research object,the vibration analysis is carried out with the displacement transmissibility as the performance indicator.The results show that compared with the traditional spring-damping suspension and bionic X-shaped suspension,the performance of the suspension is better and the main frequency is lower after adding the inerter.When the input excitation is in the range of 5~11 Hz,the displacement transmissibility of the system is the lowest and the vibration reduction effect is the best.Secondly,a set of tracked vehicle half-car model is established,and the nod acceleration of the vehicle is analyzed by using three different levels of random road signals as excitation.Compared with the traditional bionic X-shaped suspension,the nodding acceleration of the inerter suspension is reduced by 9.3%,42.98%and 65.91%respectively.And the higher the road grade,the more complex the road conditions,the lower the suspension nod acceleration,the better the damping effect.The research results provide a reference for the design of new tracked vehicle suspension with better damping effect by using inerter and bionic X-shaped structure.
作者
杨所
韩世昌
李茜
YANG Suo;HAN Shichang;LI Xi(Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650500,China;Yunnan International Joint Laboratory for Intelligent Control and Application of Advanced Equipment,Kunming 650500,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2024年第6期260-266,共7页
Journal of Ordnance Equipment Engineering
基金
云南省科技厅科技计划项目(202001AU070032)。
关键词
履带车辆悬架
悬架设计
惯容器
减振分析
tracked vehicle suspension
suspension design
inerter
vibration reduction analysis
