基于响应面法的除沙料斗优化研究

Optimization of Sand Removal Hopper Based on Response Surface Methodology

料斗作为除沙车最重要一部分,影响着清理积沙的效率。为了增大料斗式除沙车的除沙量及降低最大除沙阻力,对料斗的工作参数进行响应面优化。首先,采用Box-Benhnken设计方法对料斗转速、料斗张角及除沙深度等主要因素进行三因素三水平试验设计;然后,创建关于响应目标的回归模型并进行方差分析;最后,分析各因素交互作用对响应目标的影响,通过响应面法对料斗工作参数加以优化。结果表明,对响应目标影响程度从大到小依次为除沙深度、斗张角与转速;当料斗转速为25 r/min,料斗张角为125°,除沙深度为105 mm时,除沙量达到最优值43.3757 kg,最大除沙阻力达到最优值335.135 N。该研究可对料斗式除沙车相关设计提供参考。

As the most important part of the sand removal truck,the hopper affects the efficiency of cleaning the sand,in order to increase the sand removal capacity of the hopper type sand removal truck and reduce the maximum sand removal resistance,the response surface optimization of the working parameters of the hopper was carried out.Firstly,the Box-Benhnken design method was used to carry out a three-factor and three-level experimental design for the main factors such as hopper rotation speed,hopper opening angle and sand removal depth,then created a regression model on the response target and perform ANOVA,finally,the influence of the interaction of various factors on the response target was analyzed,and the working parameters of the hopper were optimized by the response surface method.The results show:the degree of influence on the response target is in descending order of sand removal depth,bucket opening angle and rotational speed;when the speed of the hopper is 25 r/min,the opening angle of the hopper is 125°,and the sand removal depth is 105 mm,the sand removal amount reaches the optimal value of 43.3757 kg,and the maximum sand removal resistance reaches the optimal value of 335.135 N.This research can provide a reference for the design of the hopper-type sand removal vehicle.