摘要
依据行业标准,采用有限元方法对水轮机座环进行了动力学分析。给出了座环前4阶固有频率、振型和振幅频率曲线,并得到了振动时效减小座环上对接焊缝残余应力的重要工艺参数。该研究方法和结论为大型座环及其它重大焊接构件振动时效工艺参数确定提供了有价值的参考意见和理论依据。
The dynamic analysis of stay ring for hydraulic turbine was made with finite element method according to the industrial standard. The forth four steps natural frequencies and mode shapes were given as well as the curves of amplitude-frequency. Some great important technological parameters were also obtained, which is available for reducing the residual stress of welds in stay ring with vibratory aging. Some valuable references and theory proof for determining technological parameters of vibratory aging tre...
出处
《机械设计与制造》
北大核心
2008年第2期119-121,共3页
Machinery Design & Manufacture
基金
湖北省教育厅自然科学研究计划重点项目"水轮机重大焊接部件振动时效工艺参数研究"(编号:2004D002)
关键词
振动时效
有限元法
动力学分析
工艺参数
Vibratory aging
Finite element method
Dynamic analysis
Technological parameters
