基于 Taguchi改进算法的脱水机悬挂系统参数优化研究

高速脱水机减振悬挂系统是其工作状态下抑振性能的基本保证，其中悬挂系统参数的波动更是直接影响高速脱水机的抑振效果。利用高速脱水机的动力学模型建立其筒体振幅的响应面模型，以该响应面模型为优化目标，悬挂系统参数为优化对象，分别采用传统遗传算法和基于Taguchi改进方法的混合遗传算法进行参数优化。对两种优化方法应用蒙特卡洛法进行了算法分析。基于优化结果，开展了高速脱水机多工况筒体振动试验研究，并进行了对比验证。结果表明，基于Taguchi改进方法的混合遗传算法具有更优的精确性和稳健性，对于工程应用具有指导意义。

Comparison of Noise Reduction Effects for Different Inclinations of Sound Barrier

Acoustic experiments on sound barrier model of 1/3 scale were made in semi-soundelimination room. The effects of noise reduction for different inclinations of the sound barrier were studied. Comparison and analysis of the sound pressure levels in different conditions show that for the reverberation type barrier, vertical barrier and inward oblique barrier with small inclination angle have better effect of noise reduction than the others. While for the absorption type barrier, vertical type and outwardoblique type are better than the others. According to the results, the designers can choose pertinent type of sound barrier for the best effect of noise reduction.