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本文在对GC301—01型工业平缝机的振动激励源及噪声辐射源分析的基础上,从理论及实验两方面探讨了该机主要噪声辐射源之一(台板)的振动发声机理及振动与噪声辐射的关系,并采取阻尼降噪措施,使该机噪声降低5—6dB(A),该机的振动特性也得到很大的改善。
Based on the analysis of vibration excitation source and noise radiation source of GC301-01 industrial sewing machine, this paper discusses the mechanism of vibration and vibration of one of the major noise sources (platen) and vibration of the machine from two aspects of theory and experiment And the relationship between noise and radiation, and damping noise reduction measures to reduce the aircraft noise 5-6dB (A), the vibration characteristics of the machine has also been greatly improved.