CAJ | 학술논문

根据菱形客车独特的底盘布置方式，建立其十五自由度整车平顺性模型，利用MATLAB软件进行相应的分析和求解，并以各个乘员的垂向加权加速度均方根值为优化目标，各个悬架的动行程和各个车轮的相对动载为约束条件，运用遗传算法NSGA-Ⅱ对悬架参数进行了优化设计。优化结果表明，菱形客车平顺性在较大程度上得到了提高，优化后，各设计变量的取值具有很好的工程参考意义。
근거릉형객차독특적저반포치방식，건립기십오자유도정차평순성모형，이용MATLAB연건진행상응적분석화구해，병이각개승원적수향가권가속도균방근치위우화목표，각개현가적동행정화각개차륜적상대동재위약속조건，운용유전산법NSGA-Ⅱ대현가삼수진행료우화설계。우화결과표명，릉형객차평순성재교대정도상득도료제고，우화후，각설계변량적취치구유흔호적공정삼고의의。
According to the unique chassis layout mode,a fifteen DOF model of rhombic bus was built,and the corresponding analyses and solve were done by MATLAB software. With weighted vertical root mean square values of each passenger＇s acceleration as optimization objective, and with dynamic displacements of each suspension and relative dynamic loads as constraint conditions, the parameters of suspension were optimized by NSGA-Ⅱ. The optimized results indicate that the ride comfort ability of rhombic bus is improved greatly after optimization. The values of every design variable will have better reference significance to the engineering after optimization.