摘要
研究了广义协调三角形厚薄通用板单元TMT的固有振动特性.通过编制程序,采用子空间迭代法求得不同板厚的基频值,将计算结果与理论解和有限元软件ABAQUS的结果进行比较.结果表明:广义协调三角形厚薄板通用单元TMT在固有振动分析方面有良好的收敛性,较高的数值稳定性,很好的实用性(无需区分厚板和薄板),为板的固有振动分析提供了一个新的思路,且用广义协调厚薄板通用单元进行了动力分析.
The free vibration property of the generalized conforming thick/thin element TMT was studied in this paper. By programming, the basic natural frequency with different thickness of plate was acquired by a sub-space iteration method. By comparing the numerical value of ABAQUS and the theoretical solution, the results show that the TMT element has a good convergence, high numerical stability and excellent applicability (unnecessary to predict thick or thin plate) in analyzing free vibration of plate. A new method for free vibration analysis was provided.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2007年第1期91-96,共6页
Journal of China University of Mining & Technology
基金
国家自然科学基金重大项目(50490272)
国家重点基础研究发展规划(973)项目(2002CB412705)
国家自然科学基金项目(10572147)
教育部创新团体计划项目(IRT0408)
教育部重大科技基金项目(10427)
关键词
有限单元法
广义协调元
固有振动
固有频率
ABAQUS
finite element method
the generalized conforming element
natural frequency
free vibration
ABAQUS