二次隔振技术的研究与实例计算
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摘要
在噪声治理工程中应用二次隔振降低固体传声,可以起到较理想的隔振效果。以制冷压缩机组二次隔振为实例,利用EXCEL软件计算三种激振频率条件下,隔振架质量比与系统固有频率、隔振效率的关系,并对计算结果进行讨论,结果表明,激振频率、质量比是影响隔振效率的主要因素;二次隔振中应选取适当的隔振架质量比,以避免系统共振。
The secondary vibration isolation may be used to reduce sound transmission in solid in the application of noise control engineering, which can have an ideal effect on vibration isolation. The refrigerating compressor set was taken as the example, the relationship among mass ratio of vibration isolation frame, the natural frequency of the system and vibration isolation efficiency may be figured out by Microsoft Excel on the condition of three different vibration frequencies. The calculation results were discussed accordingly, which show that vibration frequency and mass ratio are main factors which have an effect on vibration isolation efficiency. The proper mass ratio of vibration isolation frame should be adopted so as to avoid the system resonance during the secondary vibration isolation design.
The secondary vibration isolation may be used to reduce sound transmission in solid in the application of noise control engineering, which can have an ideal effect on vibration isolation. The refrigerating compressor set was taken as the example, the relationship among mass ratio of vibration isolation frame, the natural frequency of the system and vibration isolation efficiency may be figured out by Microsoft Excel on the condition of three different vibration frequencies. The calculation results were discussed accordingly, which show that vibration frequency and mass ratio are main factors which have an effect on vibration isolation efficiency. The proper mass ratio of vibration isolation frame should be adopted so as to avoid the system resonance during the secondary vibration isolation design.
引文
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[6]温艳,张富韬,吴昊,等.二次隔振技术的应用研究[J].教育科学博览,2014(7):126-127.
[7]温艳,吴昊,曹师今,等.制冷压缩机组二次隔振的研究[J].环境保护与循环经济,2014,34(5):39-41.
[2]肖南,孙欣.在噪声治理中二次隔振的应用实例[J].环境保护与循环经济,2011,31(3):59-60.
[3]李艾民,陈飞,陆信.振动机械二次隔振设计中质量比的确定[J].冶金矿山设计与建设,1995(5):31-33.
[4]成大先.《机械设计手册》第四卷[M].5版.北京:化学工业出版社,2008.
[5]姜克城.二次积极隔振在ZD型单轴转动筛上的应用[J].煤矿设计,1988(4):19-22.
[6]温艳,张富韬,吴昊,等.二次隔振技术的应用研究[J].教育科学博览,2014(7):126-127.
[7]温艳,吴昊,曹师今,等.制冷压缩机组二次隔振的研究[J].环境保护与循环经济,2014,34(5):39-41.