噪声与振动控制2025，Vol.45Issue(4)：7-13,7.DOI:10.3969/j.issn.1006-1355.2025.04.002
嵌入式冰箱辐射噪声数值模拟与降噪研究
Numerical Simulation and Noise Reduction of Embedded Refrigerator Radiation Noise
摘要
Abstract
Taking an embedded refrigerator as the research object,a 3D model of the refrigerator is established by sim-plifying the structure.The LMS Virtual.lab is used to simulate the radiation noise and the front field sound directivity of the refrigerator at different clearance between both side of the refrigerator and the cabinet wall,and the simulation results are verified by experiments.According to the noise directivity,a rectangular muffler is added to the bottom of the refrigerator.The results show that the noise of the refrigerator in the embedded state is higher than that in the free state,and the sound from the bottom of the refrigerator is larger.The experimental results show that when the embedding clearance on both sides is 6 mm,the noise increases by 6.1 dB(A).The numerical simulation results are in good agreement with the experimental re-sults,and the feasibility of the method is verified.The numerical simulation results indicate that the noise value is reduced by 6.56 dB(A)after the muffler is added to the bottom when the embedded clearance on both sides is 12 mm,adding a muffler at the bottom of the embedded refrigerator can effectively control the radiation noise of the refrigerator.The research results have provided a reference for the subsequent noise reduction of the embedded refrigerators.关键词
声学/嵌入式冰箱/嵌入距离/辐射噪声/声指向性/消声器Key words
acoustics/embedded refrigerator/embedded clearance/radiation noise/acoustic directivity/muffler分类
通用工业技术引用本文复制引用
王仰超,徐玉峰,万彦斌,杜华东,韩宝坤,王金瑞..嵌入式冰箱辐射噪声数值模拟与降噪研究[J].噪声与振动控制,2025,45(4):7-13,7.基金项目
国家自然科学基金资助项目(52105110) （52105110）
山东省自然科学基金资助项目(ZR2021QE024,ZR2022ME119) （ZR2021QE024,ZR2022ME119）
青岛博士后资助项目(QD-BSH20220202109) （QD-BSH20220202109）
