摘要
采用弹性动力学方法,建立了真空平板玻璃的动力学分析模型,计算出真空平板玻璃在动态载荷下的响应特性.通过对真空平板玻璃动态特性的试验研究,得到了其动态响应特性,并对比了试验结果与计算结果,验证了理论分析的可靠性.试验结果表明:随着振动频率的增加,真空平板玻璃动态响应呈先增加后减小的变化趋势,随着与中心处距离的增大,真空平板玻璃动态响应呈减小的趋势;当外部激振频率达到50 Hz时,真空平板玻璃会产生强烈的共振现象,从而破坏真空平板玻璃正常工作特性,影响其结构可靠性及工作稳定性.
By using elastic dynamics methods, the dynamic analysis model of the vacuum plate glass was built. The response characteristic of the vacuum plate glass under dynamic loading was calculated. The dy- namic response characteristic of the vacuum plate glass was obtained through experiments. And the rea- sonability of the theoretical analysis method was verified by comparing the experimental results with theo- retical analysis results. This provides important basis for monitoring of application, service life prediction and structural improvement design of the vacuum plate glass. The experimental results show that the dy- namic response of the vacuum plate glass is enhanced to a maximum and then reduces with increasing the vibration frequency. The dynamic response of the vacuum plate glass reduces with the increase of the dis- tance to the center of the vacuum plate glass. When external excitation frequeny reaches 50 Hz, strong resonance phenomenon is observed in the vacuum plate glass. Normal operation properties of the vacuum plate glass are damaged, and its structural reliability and working stability is adversely affected.
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2014年第1期153-158,共6页
Journal of Building Materials
基金
国家青年科学基金资助项目(51302242)
国家自然科学基金资助项目(51172199
51372216)
江苏省自然科学基金资助项目(BK2012530)
江苏省产学研联合创新资金计划(SBY201120191)
江苏省科技支撑(社会发展)项目(BE2010700)
江苏省普通高校研究生科研创新计划(CXLX11_1002)
关键词
真空平板玻璃
动态响应
频率
振幅
vacuum plate glass
dynamic response
frequency
amplitude
