摘要
针对传统被动悬架行驶平顺性与操纵稳定性之间的矛盾,设计了一种应用惯容器的蓄能悬架结构。针对其结构特点,提出惯容器与阻尼同轴串联一体式布置方案。基于机电相似性理论,建立了含有该结构的四分之一车辆悬架模型,分别在时域与频域范围内对蓄能悬架的动态特性进行仿真研究。理论分析表明:相比于传统被动悬架,平顺性评价指标车身加速度均方根、轮胎动载荷均方根、悬架动行程均方根均有所减小,所设计的蓄能悬架可有效缓冲和衰减来自路面不平度的冲击,其结构简单,便于工程应用。
Aiming at the contradiction between the ride performance and control stability of the traditional passive suspension, a kind ofinerter suspension structure is designed. Directing at the structural features of this kind ofsnspension, an integrated coaxial layout with series inerter and damper is proposed. Based on the mechanical-electrical analogy theory, a quarter vehicle suspension model including the above suspension structure has been built, and simulation research has been done with the dynamic behavior of inerter suspension within time and frequency domain. Theoretical analysis shows that, compared with traditional passive suspension, as the evaluating indicators of ride performance, body acceleration mean square root, dynamic tyre load mean square root and suspension working space mean square root have decreased without exception, the designed inerter suspension can effectively buffer and reduce different degrees of impacts from roads. The designed inerter suspension is easy to be applied in engineering practice due to its simple structure.
出处
《机械设计与制造》
北大核心
2014年第6期58-61,共4页
Machinery Design & Manufacture
基金
江苏省自然科学基金项目(BK20130521)
