广西科技大学学报2026，Vol.37Issue(2)：9-16,69,9.DOI:10.16375/j.cnki.cn45-1395/t.2026.02.002
基于节点坐标法的柔性梁振动与力学特性分析
Vibration and mechanical characteristics of flexible beams based on the nodal coordinate method
摘要
Abstract
The absolute node coordinate method describes the large complex turning angles and translational deformations of flexible bodies through position gradients and Green Lagrange strains.Because the low-order beam based on the nodal coordinate method employs a linear interpolation in the transverse direction,the numerical accuracy of the large deformation in the Hyperelastic material experiment can not be guaranteed even after the volume locking is improved.By integrating the penalty function into the x,y and z directions,a high-order all-parameter beam element was obtained to solve the problem of poor numerical accuracy of large deformation.The theoretical model of the beam was derived through MATLAB simulation and compared with the simulation results of commercial software ANSYS to verify the accuracy of the model.The feasibility of the model was verified through dynamic simulation of a single pendulum of the beam under gravity,and the mechanical characteristics of high-order fully parametric beams were analyzed.关键词
绝对节点坐标法/高阶全参梁/固有频率/模态分析/动力学分析Key words
absolute nodal coordinate method/high-order full parametric beam/natural frequency/modal analysis/dynamic analysis分类
机械制造引用本文复制引用
曲汉龙,伍松,伍炜,赵鑫,罗淇译,符黄彬..基于节点坐标法的柔性梁振动与力学特性分析[J].广西科技大学学报,2026,37(2):9-16,69,9.基金项目
国家自然科学基金项目(51665006) （51665006）
广西汽车零部件与整车技术重点实验室自主研究课题(2017GKLACVTZZ01)资助 （2017GKLACVTZZ01）
