摘要
针对汽车理论中尚无整车质量分配系数研究的缺憾,考虑垂向和侧向路面激励的复合影响,以14个自由度整车传统物理模型为背景,对簧载质量进行空间动力学分析,借助4个轮系方位与簧载质量质心处的运动学关系,研究车体垂直、侧向、俯仰角、侧倾角和横摆角这五种运动,进而推导得到整车悬架与4个1/4悬架系统间的动力耦合定量关系,发展与完善汽车质量分配系数理论,并为今后汽车悬架系统振动控制、转向与操纵系统平稳性的研究提供新的视角与思路。
Aiming at the lack of description of the mass partition coefficient for a whole car in automotive theories,a traditional physical model with fourteen degree of freedoms under the influence of vertical and lateral road excitations is adopted as study background in this paper.With the help of force analysis of sprung mass and research on vertical,lateral,pitch,roll and yaw motions,the ratio relations of coupling dynamics between a whole suspension and four quarter suspensions are deduced and achieved.The results obtained in this paper provide the theoretical basis for future investigations such as steering,running steadiness and vibration control of suspension system in vehicle field.
出处
《三明学院学报》
2010年第6期538-541,共4页
Journal of Sanming University
基金
福建省教育厅科技项目(JA08239)
福建省高校服务海西重点工程项目(HX200804)
关键词
质量分配系数
整车悬架
1/4悬架
簧载质量
耦合分析
垂向
侧向
路面不平度
mass partition coefficient
whole suspension
quarter suspension
sprung mass
coupling analysis
vertical
lateral
road roughness
