三自由度“人体-座椅”系统的动态舒适性研究  

The dynamic comfort research on the human body-seat of three degrees of freedom

作　　者：范平清[1] 邢彦锋[1] 赵波[1] 

机构地区：[1]上海工程技术大学汽车学院,上海201620

出　　处：《现代制造工程》2013年第11期56-59,共4页Modern Manufacturing Engineering

基　　金：上海市自然科学基金资助项目(112R1414700);上海市高校选拔培养优秀青年教师科研专项基金项目(gjd-07022)

摘　　要：以座椅动态舒适性为目标,建立三自由度的"人体-座椅"动态模型及其振动方程。通过仿真分析,得到"人体-座椅"动态模型的幅频特性曲线和阻尼系数、固有频率对幅频特性的影响关系曲线。运用随机振动理论,建立振动响应功率谱密度函数和由路面车速确定的路面谱函数之间的关系,分析座椅减振系统参数对振动响应的影响。根据汽车座椅平顺性评价标准和随机优化方法,对座椅动态参数进行优化分析,从而使座椅振动响应量最小。Presents a system method to analyze and optimize the parameters for vibration system of automobile seats in order to improve the dynamic comfort of seats. The human body and car seat system are described by a three-degree-of-freedom dynamic model and the corresponding vibration equations are established. The amplitude-frequency characteristic curves of this dynamic model and the relationship curves which describe the impact of damping coefficient and natural frequency for amplitude-frequency characteristics are introduced based on simulation analysis. The relationships between the power spectral density function of vibra- tion response and the spectral function of road are constructed so the impact of the vibration system parameters for vibration response is analyzed. According to the evaluation standard of automobile smooth-going characteristic and random optimization methods ,the dynamic parameters of car seats are optimized by minimizing the root mean square of vibration response of seats.

关 键 词：人体-座椅 舒适性 振动 

分 类 号：U463.836[机械工程—车辆工程]