摘要
将磁流变减振器Bingham模型应用于铰接式自卸车前悬架系统,建立了前悬架的半主动模型。基于最优控制理论设计出悬架最优控制系统,利用Simulink对其在随机路面激励下进行仿真。将最优控制半主动悬架的悬挂质量垂向加速度、悬挂质量角加速度、悬架动挠度、轮胎动载与被动悬架的进行对比。研究结果表明:最优控制半主动悬架能够有效地改善铰接式自卸车的行驶平顺性,降低轮胎跳离路面的概率,但是会使悬架撞击限位的概率有所增加。
The semi-active model of front suspension of articulated dump truck was built by using the Bingham model of magneto-rheological damper(MRD).The optimal control suspension system was designed by using the optimal control theory.By Simulink,the semi-active model was simulated under a random road excitation.The vertical acceleration,angular acceleration of suspended mass,suspension dynamic deflection and tire dynamic load of semi-active suspension were compared with passive suspension.The results show that the semi-active suspension using optimal control is an efficient measure to improve ride comfort.It can reduce the probability of tire jumped off road,and increase the probability of suspension hitting limit block.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2013年第3期30-34,108,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
国家"863"基金项目子项目(2012AA111204)
