家用冰箱振动噪声分析与控制.pdfVIP

家用电冰箱振动噪声分析与控制 摘 要 电冰箱的噪声历来是冰箱行业的难题之一。经过56万用户调查，对国产冰 箱质量不满意项目中，噪声占首位，为39.7%。噪声破坏了自然界原有的宁静， 损伤人们的听力，损害人们的健康，影响了人们的生活和工作。控制电冰箱的噪 声有两条途径：一是改进结构，提高各个部件的加工精度和装配质量，采用合理 的操作方法等，降低声源的噪声发射功率。二是利用声波的吸收、反射、干涉等 特性，采用吸声、隔声、减振、隔振等技术，以及安装消声器等，控制噪声的辐 射。振动是产生噪声的主要原因，因此振动控制不仅可以保护仪器设备和人员不 受危害，而且采用减振隔振措施也可以有效的控制噪声污染。本论文通过对家用 电冰箱振动噪声的分析与研究，通过对振动与噪声的测试试验，总结出一些解决 和降低振动噪声的方法。 关键词：电冰箱，振动，噪声，试验 I Abstract Noise of the refrigerator has always been one of the difficult problems of the refrigerator trade. Through the investigation of 560,000 users, in the dissatisfaction with domestic refrigerator quality, noise takes the first place, it is 39.7%. Noise destroys the already existing tranquility of nature, damages peoples hearing and health, and has influenced peoples life and work. There is two ways to control the refrigerator noise : First ,to improve the structure and machining accuracy of each part and assembly quality, adopt reasonable working technique wait , reduce noise of sound source launch the power. Second , to utilize the characteristic of sound wave of absorption, reflection, interfering etc. to adopt sound absorption, noise isolation, vibration isolation and reducing technology and install silencer ,etc.. Vibration is the main reason that produce the noise, so vibration control can protect the instrument and equipment and personnel out of endangerment, and can effectively control the noise pollution. In this paper, test experiment for is made for vibration and noise of the family refrigerator. through the research and the analysis of the vibration and noise, some methods of solving and redu