电冰箱后背板试验模态分析  

Modal Analysis of Refrigerator's Back-Plates by Testing

作　　者：顾明亮[1] 赵向阳[1] 

机构地区：[1]海尔集团技术研发中心,山东青岛266103

出　　处：《噪声与振动控制》2010年第4期164-165,176,共3页Noise and Vibration Control

摘　　要：采用优化传递路径方法,通过对海尔某型号冰箱后背板的工作模态进行分析,得出后背板的固有频率和振型,并提出对后背板结构进行优化设计,有效避免后背板与整机之间的共振,以达到减振降噪目的。There are 3 ways to reduce refrigerator＇s noise： reducing the sound source,optimizing the sound delivery path,and repressing the response.In this paper,the second way is discussed only.Through the modal analysis of the back-plates of some Haier refrigerators,their natural frequencies and vibration modes are found.The optimal design of the back-plate structure is presented.The resonance between the back-plate and the entire refrigerator can be avoided and the noise can be reduced.

关 键 词：振动与波 模态分析 结构优化 减振降噪 振型 

分 类 号：TH123[机械工程—机械设计及理论]