CAJ | 학술논문

为改善动力总成悬置系统的隔振性能，以某车辆的悬置系统为研究对象，在扭矩轴坐标系下建立6自由度振动分析数学模型，阐述能量解耦的计算方法。以悬置系统振动解耦率和固有频率分布为设计目标，以悬置刚度为设计变量，采用遗传算法对该悬置系统进行优化设计，并且用蒙特卡罗模拟方法对优化结果进行稳健性分析。结果表明，优化后悬置系统的振动解耦率和频率满足设计要求，且系统设计稳健性较好。
위개선동력총성현치계통적격진성능，이모차량적현치계통위연구대상，재뉴구축좌표계하건립6자유도진동분석수학모형，천술능량해우적계산방법。이현치계통진동해우솔화고유빈솔분포위설계목표，이현치강도위설계변량，채용유전산법대해현치계통진행우화설계，병차용몽특잡라모의방법대우화결과진행은건성분석。결과표명，우화후현치계통적진동해우솔화빈솔만족설계요구，차계통설계은건성교호。
To improve the vibration insulation performance of the powertrain mounting system, we use a mounting system as research object and construct a DOF vibration analysis mathematical model in the torque axis coordinate system, and analyze energy decoupling method. The mounting system is optimized with genetic algorithm with vibration decoupling ratios and natural frequencies as design objectives, and dynamic stiffness of individual mount as design variables. Finally, the design robustness is analyzed by using Monte Carlo simulation method. The results illustrate that the decoupling ratios and frequencies meet the design requirements after optimization, and the design robustness is also satisfactory.