Fishery Modernization ›› 2026, Vol. 53 ›› Issue (2): 96-106. doi: 10.26958/j.cnki.1007-9580.2026.02.010

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Simulation analysis and experiment of ultrasonic synergistic cleaning of oysters based on COMSOL

  

  1. (1 College of Mechanical and Power Engineering, Dalian Ocean University, Dalian 116023, China;
    2. Department of Basic Studies, Dalian Ocean University, Dalian 116023 China
    3 Key Laboratory of Environment Controlled Aquaculture（Dalian Ocean University）Ministry of Education, Dalian 116023,China;
    4 Marine Fishery Equipment Professional Technology Innovation Center of Liaoning Province,Dalian,Liaoning 116023,China)
  • Online:2026-04-20 Published:2026-04-23

基于COMSOL的牡蛎超声协同清洗仿真分析与试验

  1. （1大连海洋大学机械与动力工程学院，大连 116023；
    2大连海洋大学基础学部，大连 116023；
    3设施渔业教育部重点实验室（大连海洋大学），大连 116023；
    4辽宁省海洋渔业装备专业技术创新中心，大连 116023；）

  • 通讯作者: 曲冰（1980—），男，副教授，研究方向：海洋物理技术。E-mail: qubing@dlou.edu.cn
  • 作者简介:张展侨（2000—），男，硕士研究生，研究方向：渔业加工装备。E-mail：1529688993@qq.com
  • 基金资助:
    国家重点研发计划项目（2023YFD2400800）；2025 大连市科技创新基金（）

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Abstract: To address the problems of incomplete cleaning of oyster shells and low efficiency in traditional oyster cleaning machines, this paper studies the ultrasonic cooperative cleaning technology and develops an ultrasonic cooperative cleaning device for oysters. Based on the COMSOL Multiphysics finite element simulation technology, the distribution of the ultrasonic field was simulated, and the influence laws and pressure distribution of the ultrasonic cleaning frequency, cleaning cross-section height, and the number of transducers on the sound pressure and sound pressure level in the ultrasonic cleaning domain were clarified. The research shows that the optimal energy distribution of the ultrasonic field is achieved when the ultrasonic cleaning frequency is in the range of 25-45 kHz, the cleaning cross-section height is -125 mm, and the number of transducers is 10. The sound pressure value range is 2.5-4.8×104 Pa. A prototype was manufactured and the cleaning performance was verified. By exploring the effects of feeding rate, cleaning time, and ultrasonic cleaning frequency on the overall cleaning performance of the machine, the results show that the order of influence of each factor on the oyster impurity removal rate is feeding rate > ultrasonic cleaning frequency > cleaning time. Under the operating conditions of an ultrasonic cleaning frequency of 28 kHz, a cleaning time of 5 minutes, and an oyster feeding rate of 1150 g, the impurity removal rate of the device is 5.63%. This study can provide a reference for the development of ultrasonic cleaning devices for oysters.

Key words: Oyster, Ultrasonic cleaning, COMSOL Multiphysics, Impurity removal rate

摘要： 为解决传统牡蛎清洗机对牡蛎表壳清洗不彻底、效率低的问题。针对超声协同清洗技术进行了相关研究研制了一种牡蛎超声协同清洗装置。基于COMSOL Multiphysics有限元仿真技术对超声声场分布情况进行了仿真，明确了超声波清洗频率、清洗截面高度和换能器个数对超声清洗域内声压、声压级的影响规律和声压分布情况。结果显示：超声波清洗频率范围25~45 kHz，清洗截面高度-125 mm，换能器10个，声场能量分布最佳，声压值范围为2.5~4.8×104Pa。完成了样机制造并开展了清洗性能作业验证，通过探究喂入量、清洗时间、超声波清洗频率对整机清洗作业性能的影响，各因素对牡蛎除杂率影响的主次顺序为喂入量＞超声波清洗频率＞清洗时间，在超声清洗频率28 kHz，清洗时间5 min，牡蛎喂入量1 150 g的作业条件下，装置除杂率为5.63%。本研究可为牡蛎超声清洗装置研制提供参考。

关键词: 牡蛎, 超声波清洗, COMSOL Multiphysics, 除杂率