南京理工大学学报（自然科学版）2012，Vol.36Issue(5)：830-834,5.
移动刚体-悬臂梁耦合系统建模仿真及实验研究
Modeling Simulation and Experiment of Cantilever Beams Activated by Moving Rigid Body
摘要
Abstract
A contact-impact model of the cantilever beam activated by a small-span rigid body moving on the surface is established. The fit clearances of front and back contact points between the moving rigid body and the elastic beam surface and the time-dependent effect of structure parameters are considered. Dynamic deflections and velocities for the free end of the uniform cross-section cantilever beam are computed using the time-discontinuous Galerkin ( TDG) finite element method with power function interpolation, and the results are compared with those of the moving force model, the moving mass model and the ABAQUS software. The influence of fitting clearances on dynamic characteristics of the beam is discussed. An experimental system of the cantilever beam activated by the moving mass is designed, and the free end deflection of the beam is tested. The numerical solutions of the contact-impact model by TDG method agree well with experiments and can interpret the low frequency vibration on test curves.关键词
接触/碰撞模型/时间不协调伽辽金有限元法/移动载荷/配合间隙Key words
contact-impact model/ time-discontinuous Galerkin finite element method/ moving loads/ fitting clearances分类
数理科学引用本文复制引用
葛建立,杨国来,王兆旭,郝建伟,邓伟..移动刚体-悬臂梁耦合系统建模仿真及实验研究[J].南京理工大学学报（自然科学版）,2012,36(5):830-834,5.基金项目
国家973计划资助项目(61311603) （61311603）
南京理工大学科技发展基金(XKF09065) （XKF09065）
