吸扫式清扫车气力系统流场特性分析与结构参数优化
顾金彤 , 王雪彤 , 纪如鹏 , 吴亚君 , 郑云浩
盐城工学院学报(自然科学版) ›› 2025, Vol. 38 ›› Issue (4) : 1 -12.
吸扫式清扫车气力系统流场特性分析与结构参数优化
Flow Field Characteristics Analysis and Structural Parameter Optimization of the Pneumatic System for Suction-sweeping Road Sweeper
为提高吸扫式清扫车的作业效率,本文基于ANSYS Fluent软件,建立清扫车核心气力系统的三维流场模型,再通过单因素仿真试验,分析吸管直径、吸盘结构参数、导流板角度等7个关键参数对吸尘性能的影响规律;采用Box-Behnken响应曲面法构建多目标优化模型,结合目标权重法进行参数优化。结果表明,结构参数最优值分别为:吸尘管直径165 mm、吸尘管长度1 581 mm、吸盘喇叭口高度155 mm、吸盘挡板倾斜角61°、吸盘宽度105 mm、导流板倾斜角130°、导流板高度89 mm;优化后吸盘近地面流速提升4.32%,负压提升16.03%,系统压力降降低8.56%,系统内部流场分布更加均匀,涡流现象显著减少。
To improve the operational efficiency of suction-sweeping road sweepers based on ANSYS Fluent software, a three-dimensional flow field model of the sweepers core pneumatic system was established. Through single-factor simulation experiments, the influence of seven key parameters on suction performance was analyzed.A multi-objective optimization model was constructed using the Box-Behnken response surface methodology, and parameters were optimized in combination with the objective weighting method. The results indicate that the optimal values of the structural parameters are as follows:a dust suction pipe diameter of 165 mm, a dust suction pipe length of 1 581 mm, a suction cup bell-mouth height of 155 mm, a suction cup baffle inclination angle of 61°, a suction cup width of 105 mm, a deflector inclination angle of 130°, and a deflector height of 89 mm. After optimization, the flow velocity near the ground of the suction cup increased by 4.32%, its negative pressure increased by 16.03%, and the system pressure drop decreased by 8.56%. Furthermore,the internal flow field distribution became more uniform, and the vortex phenomenon was significantly reduced.
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国家自然科学基金项目(51405418)
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