CAJ | 학술논문

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。
이좌의동태서괄성위목표，건립삼자유도적“인체-좌의”동태모형급기진동방정。통과방진분석，득도“인체-좌의”동태모형적폭빈특성곡선화조니계수、고유빈솔대폭빈특성적영향관계곡선。운용수궤진동이론，건립진동향응공솔보밀도함수화유로면차속학정적로면보함수지간적관계，분석좌의감진계통삼수대진동향응적영향。근거기차좌의평순성평개표준화수궤우화방법，대좌의동태삼수진행우화분석，종이사좌의진동향응량최소。
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 re -sponse is analyzed .According to the evaluation standard of automobile smooth-going characteristic and random optimization meth-ods,the dynamic parameters of car seats are optimized by minimizing the root mean square of vibration response of seats .