摘要
在广义坐标法的假定下,导出考虑畸变时薄壁箱形截面梁受扭分析的拉格朗日方程和哈密顿对偶求解体系,用精细积分法求该体系的高精度数值解。计算结果表明该方法精度高、计算简单、适用性强,可方便用于薄壁杆件结构的计算。
On the basis of generalized coordinate method assumption, Lagrange equations and Hamil- tonian dual system for torsion analysis of the thin-walled box beam are deduced by considering distor- tion. Then the high accuracy numerical solutions can be obtained by using a precise integration meth- od. Through the calculation results, this method has higher precision and greater applicability. The calculating process is simple. It can be conveniently used for the calculation of thin-walled bar struc- tures.
出处
《江西科学》
2012年第3期335-337,共3页
Jiangxi Science
基金
河北省自然科学基金项目(E2011402057)
关键词
薄壁箱梁
畸变
广义坐标法
哈密顿对偶求解体系
精细积分法
Thin-walled box beam, Distortion, Generalized coordinate method, Hamilton duality so- lution system ,Precise integration method