| The art of origami has a long history.In recent years,with the development of mathematical theory and new materials,the art of origami has shown great vitality in the field of mechanism.Mathematicians are committed to the research of topological transformation of origami mechanisms,and mechanism experts are committed to the realization of new configurations and applications of origami mechanisms.Miura origami,six-fold origami,and Flasher origami are three common paper models.Their structure has distinctive folding characteristics and relatively large folding.It is great significance to perform theoretical analysis and application of the above three origami models and their origami mechanisms.This paper takes Miura origami,six-fold origami and Flasher origami as the research object,analyzes the relationship between its basic units and model features,and proposes new ideas for thick folds and model conversion.Firstly,the Flasher origami model and its unit characteristics are analyzed,and the derived model of the Flasher origami unit is discussed.Aiming at the shortcomings of the current Flasher thick plate folding need to adjust the crease,combined with the existing thick plate optimization method and synchronously unfolding hinges,a new adaptive thickness hinge design was proposed,and the Flasher thick plate mechanism folding was realized with this new hinge.Structural adjustment method to avoid interference during the development process.The function of the new hinge was verified by modeling and simulation results.Secondly,this paper analyzed the structural characteristics and motion characteristics of the Miura origami model and its basic unit,and analyzed the structure and motion of the cylindrical surface mechanism designed by the Miura derivative units.A 3D model and a physical model of the cylindrical surface mechanism designed by the Miura derivative units were established,and the analysis results were plotted with curves and surface diagrams by Matlab.Some specific states of the model were fitted with the curve diagrams to verify the correctness of the analysis and calculation.Thirdly,the structural characteristics and motion characteristics of the six-fold origami model and its basic unit are analyzed,and the corresponding changes of the six-fold cylindrical structure with the folding angle and the size of the basic unit are drawn.Through the analysis of the critical condition of the ordinary six-fold origami model to form a complete cylindrical surface and the analysis of the mine model,and comparing the crease diagrams of the two,through a segmented drag hinge design,the six-fold model can be combined with The mine models were transformed into each other,and the design of the dual-configuration six-fold space combination mechanism was completed.Finally,the research contents and innovations of this paper are summarized.This paper standardizes the classification of origami models,enriches the design methods of origami mechanisms,and proposes new ideas for the design and application of origami mechanisms. |