摘要
针对高方平筛和其上固结的柔性吊杆组成的动力学系统,进行了刚柔耦合的动力学建模和有限元仿真分析。应用拉格朗日方程建立了高方平筛非线性动力学方程,根据稳态条件得到了系统近似轨迹圆运动方程。在此基础上,采用MSC.Patran/Nastran建立了高方平筛有限元模型并进行了动力学瞬态响应分析。实验数据验证了理论模型和有限元仿真结果。该文的动力学模型和有限元仿真方法为高方平筛的强度校核和优化设计提供了重要的指导意义和参考价值。
In view of the system consisting of square plansifier and flexible suspender attached to square plansifter, the rigid-flexible coupling dynamic modeling and the finite element simulation are employed. The nonlinear dynamic equation of square plansifter is established based on the Lagrange equation, and the kinematic circle law is derived from stabilization condition. By using MSC, Patran/Nastran, the finite element model of square plansifter is created and the transient response analysis is applied. The theoretic model and the results of finite element simulation are verified by experimental data. The dynamic model and the finite element simulation method presented here possess an important reference value and guidance to intensity checkout and structure optimization of square plansifters.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2008年第4期487-491,共5页
Journal of Nanjing University of Science and Technology
关键词
动力学建模
高方平筛
刚柔耦合
有限元
仿真
dynamic modeling
square plansifters
rigid-flexible coupling
finite element
simulation
