CAJ | 학술논문

针对轮式车辆传统悬架机构及变阻尼系数半主动悬架的不足，提出了一种具有距地高调节及刚度调节的双弹簧对称布置式悬架机构。在建立数学模型的基础上，对悬架系统距地高及车姿调节的实现机理进行了阐述；结合刚度系数变化，对悬架特性、半主动控制的实现机理、悬架系统结构的稳定性进行了分析，提出了该悬架正常工作的稳定性条件。研究表明：该刚度可调悬架机构可实现车辆距地高及静态车姿的调节，但由于悬架等效刚度随着悬架压缩量的增加而降低，使得其应用受到一定限制。
침대륜식차량전통현가궤구급변조니계수반주동현가적불족，제출료일충구유거지고조절급강도조절적쌍탄황대칭포치식현가궤구。재건립수학모형적기출상，대현가계통거지고급차자조절적실현궤리진행료천술；결합강도계수변화，대현가특성、반주동공제적실현궤리、현가계통결구적은정성진행료분석，제출료해현가정상공작적은정성조건。연구표명：해강도가조현가궤구가실현차량거지고급정태차자적조절，단유우현가등효강도수착현가압축량적증가이강저，사득기응용수도일정한제。
In view of the shortage of traditional suspension mechanism on wheeled vehicle as well as semi-active suspension by adjusting damping coefficient,a new suspension mechanism is presented with double springs arranged symmetrically for adjusting stiffness and terrain clearance.The realization mechanism a-bout regulating terrain clearance and vehicle attitude is explained respectively on the basis of its mathe-matical model,the suspension feature and its semi-active control function are interpreted according to the changes of stiffness coefficient.In addition,its stability is analyzed and so its stable condition for normal working of suspensions is derived.The study shows that this suspension mechanism with adjustable stiff-ness can adjust vehicle’s terrain clearance as well as static vehicle attitude,but its use is within a certain limit due to the decrease of suspension equivalent stiffness with the increase of suspension compression.