洗扫车用吸尘盘气动噪声的优化
作者:
作者单位:

1.天津大学 机械工程学院,天津 300072;2.天津市非线性动力学与控制重点实验室,天津 300072;3.郑州宇通重工有限公司,郑州 450000

作者简介:

通讯作者:

E-mail: qzhang@tju.edu.cn

中图分类号:

基金项目:

国家重点研发计划(2018YFB0106200)


OPTIMIZATION OF AERODYNAMIC NOISE FOR CLEANING SWEEPER’S DUST COLLECTOR
Author:
Affiliation:

1.School of Mechanical Engineering,Tianjin University,Tianjin 300072,China;2.Tianjin Key Laboratory of Nonlinear Dynamics and Control,Tianjin 300072,China;3.Zhengzhou Yutong Heavy Industries Co. Ltd,Zhengzhou 450000,China

Fund Project:

The project supported by the National Key Research and Development Plan (2018YFB0106200)

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    吸尘盘作为洗扫车的关键组成部件,降低吸尘盘的气动噪声可极大提升产品性能.基于FLUENT软件和FW-H声比拟模型,对吸尘盘的气动噪声强度进行了计算,设计了一种带有肩部结构和倾斜壁面的新型吸尘盘结构,重点研究了肩部夹角和上壁面倾角对吸尘盘气动噪声产生的综合影响,基于MATLAB软件,采用多项式拟合方法分别建立了两参数与吸尘盘全压以及总声压级之间的函数关系,并结合多目标优化遗传算法对目标函数进行了优化分析.数值结果表明:肩部夹角对气动噪声的影响较为显著,在0°~20°范围内,夹角每增加1°,噪声可以降低0.4dB;合理地增大肩部夹角,可以在降低能量损失的同时有效降低吸尘盘的气动噪声,最大降幅为6.2dB.

    Abstract:

    Dust collector is the key component of the cleaning sweeper vehicle, so the product performance can be greatly improved by reducing the aerodynamic noise of the dust collector. Based on Fluent software and FW-H acoustic analogy model, the aerodynamic noise of dust collector was calculated. Firstly, a new kind of dust collector with shoulder structure and inclined wall was designed in this paper, and the comprehensive influence between shoulder angle and inclined angle of upper wall on the aerodynamic noise of the dust collector was mainly focused on. Based on MATLAB software, polynomial fitting was used to establish the function relations between dust collector’s total pressure and two parameters, and between total sound pressure level and two parameters, and then the objective functions were optimized by using multi-objective optimization genetic algorithm. The numerical results show that: the shoulder angle has a significant influence on aerodynamic noise, and between 0° and 20°, the noise can be reduced by 0.4dB for every one degree increase of the shoulder angle. Moreover, the aerodynamic noise of the dust collector can be reduced effectively by increasing the shoulder angle reasonably while reducing the energy loss of the dust collector, and the maximum reduction is 6.2dB.

    参考文献
    相似文献
    引证文献
引用本文

单宝来,张琪昌,张沛,刘君.洗扫车用吸尘盘气动噪声的优化[J].动力学与控制学报,2020,18(6):90~100; Shan Baolai, Zhang Qichang, Zhang Pei, Liu Jun. OPTIMIZATION OF AERODYNAMIC NOISE FOR CLEANING SWEEPER’S DUST COLLECTOR[J]. Journal of Dynamics and Control,2020,18(6):90-100.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2020-06-12
  • 最后修改日期:2020-08-24
  • 录用日期:
  • 在线发布日期: 2021-01-05
  • 出版日期:

微信公众号二维码

手机版网站二维码