Dynamic finite element modeling and precision analysis of large vibrating screen
Abstract：According to the structure and mechanical characteristics of vibrating screen,the beam-shell element model was put forward, and the solution of key problem in finite element modeling was given. Using custom section beam ele- ment,the actual beam structure was simulated by variable cross section beam;the bolts connection and welded connec- tion were simplified rational by freedom degrees eoupled and constraint equations technology;the exciting force was ap- plied to structure rational by creating rigid zone. Integrating theoretical analysis and experimental modal analysis re- sults, it shows that ： compared with traditional solid element model, using beam-shell element model, the dynamic analy- sis results are more precise, it takes less computational resources, and the computing reliability is higher. Dynamic analysis of large vibrating screen can be computed in general PC by using beam-shell element model.
Keywords：large vibrating screenfinite element modelbeam-shell element modelfreedom degrees coupledrigidzone
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 344-349 )