CAJ | 학술논문

为了使人体乘坐舒适性评价指标获得更优值，使用实际车型的主要特性参数并基于相对坐标建立悬架及整车多体模型；参照平顺性道路试验标准，以悬架的弹簧刚度和减振器阻尼系数共四个主要参数作为优化对象，以基于“416 A”设计之 X 表的近似 D 最优试验设计为方法，进行4因素水平16组不同组合的行驶平顺性仿真，建立二次回归方程并依据相应因素编码公式得出最佳参数匹配组合，通过优化前后的平顺性评价指标对比验证，发现人体主观感受有所提高，其中的驾驶员座椅处垂向加速度功率谱值降低了47.2%，说明该试验优化法在改善人体乘坐舒适性方面作用明显.
위료사인체승좌서괄성평개지표획득경우치，사용실제차형적주요특성삼수병기우상대좌표건립현가급정차다체모형；삼조평순성도로시험표준，이현가적탄황강도화감진기조니계수공사개주요삼수작위우화대상，이기우“416 A”설계지 X 표적근사 D 최우시험설계위방법，진행4인소수평16조불동조합적행사평순성방진，건립이차회귀방정병의거상응인소편마공식득출최가삼수필배조합，통과우화전후적평순성평개지표대비험증，발현인체주관감수유소제고，기중적가사원좌의처수향가속도공솔보치강저료47.2%，설명해시험우화법재개선인체승좌서괄성방면작용명현.
To get better optimal values of evaluation indexes for the human’s ride comfort,by means of characteristic parameters of a real car in SIMPACK,the multi-body suspension & car models based on rel-ative coordinate were built.The parameters of spring stiffness and absorber damping have been taken as optimization objects.An approximate D-optimal test design based on a design form of “41 6-A”has been used as a method.Ride comfort simulation has been performed by means of different combinations of 4 factor and 1 6 set.A quadratic regression equation has been set up and a better combination of parameter matching got by according to the relevant factor coded formula.After the comparison validation has been done between pre-values and post-values of evaluation indexes for ride comfort,the human’s subjective re-actions change to better and power spectrum of vertical acceleration decreases by 47.2% in driver seat.It shows that the effect of this test optimization method is very sensible.