引用本文: | 苏明照,商景明.压力容器的声振时效——对声激振的探讨.[J].国防科技大学学报,1996,18(1):55-59.[点击复制] |
Su Mingzhao,Shang Jingming.Time-Effect of Vibro-Acoustics on the Pressure-Vessel-The Investigation of Sound Excitation[J].Journal of National University of Defense Technology,1996,18(1):55-59[点击复制] |
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压力容器的声振时效——对声激振的探讨 |
苏明照, 商景明 |
(国防科技大学 航天技术系 湖南 长沙 410073)
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摘要: |
根据振动时效对动应力分布的要求及压力容器的结构特点,通过对容器结构的固有频率、固有振型及其相应的动应力的分析,提出采用声激振来消除焊接残余应力以达到时效的目的,并在压力容器上成功地进行了声激振试验。 |
关键词: 时效,振动时效,声激振,固有频率,振型 |
DOI: |
投稿日期:1995-05-06 |
基金项目: |
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Time-Effect of Vibro-Acoustics on the Pressure-Vessel-The Investigation of Sound Excitation |
Su Mingzhao, Shang Jingming |
(Department of Aerospace Technology,NUDT,Changsha,410073)
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Abstract: |
The requirement of the time-effect of vibro-acoustics for the distribution of the dynamic stress and the structural characteristics of the pressure vessel are first explored. By analyzing its modal parameters and dynamic stress,a new method of sound excitation is given for eliminating the welding residual stress to achieve the time-effect. It is proved successful in practice. |
Keywords: ageing,vibration ageing,audible excitation,free frequency,vibration form |
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