摘要
建立了某四轮摩托车的线性二自由度数学模型,通过数学计算的方法分析了该车辆的操纵稳定特性,对车辆的稳态响应进行了数值分析。另外还应用虚拟现实技术对四轮摩托车建立了多体系统动力学仿真模型,并在此基础上模拟分析了该车的操纵动力学特性,包括稳态转向特性试验及双移线试验。
In order to evaluate handling stability of a four-wheeled motorcycle, a two degree of freedom mathematical analytical model is built. Steady state response characteristics is analyzed by this model. Apart from the mathematical model, multi-body system dynamics model based on virtual prototyping technology is built in order to compare with the mathematical model. Virtual experiments which include steady state turn characteristics and ISO lane change were simulated in order to analyze handling stability. The results show that the results of mathematical method and virtual analysis method are coherent, the four-wheeled motorcycle has under-steering characteristics and the mass center position is one key parameter to influence vehicle＇s lateral dynamics stability.
出处
《小型内燃机与摩托车》
CAS
北大核心
2010年第1期42-44,共3页
Small Internal Combustion Engine and Motorcycle
关键词
四轮摩托车
操纵稳定性
数学模型
稳态特性
Four-wheeled motorcycle, Handling stability, Mathematical model, Steady-state characteristics
