3D Parametric Modeling And Finite Element Analysis Of Mortise And Tenon And Furniture Structure Based On Creo

Mortise and tenon play an important role in China’s traditional furniture and ancient buildings.The mortise and tenon structure can firmly connect the components without any riveting or nail.The application of mortise and tenon structure in furniture reached its peak in the Ming and Qing Dynasties.Although mortise and tenon structure is widely used in furniture,architecture and other fields in China,the design and manufacture of mortise and tenon structure of wood products such as furniture and architecture usually rely on experience and simple calculation,and the mechanical features of timber and the board are not scientifically suitable,the size of mortise and tenon and the size of the furnishings conformation.In this paper,verify that Creo simulate finite element software is used to simulate the mechanical properties of Rebamboo.Creo Simulate finite element analysis is introduced into the mechanical research of mortise and tenon structure and furniture structure,and the specific methods of applying Creo simulate finite element analysis to the structural design,mechanical performance simulation,calculation and parameter optimization of mortise and tenon and furniture are studied.This paper analyzes the stress characteristics of common mortise and tenon and furniture structures,establishes the geometric model and finite element model of mortise and tenon and furniture through the finite element simulation software,simulates the constraints and stress in the actual situation,and research and compute its mechanical features.The major studies details of this dissertation are as follows:(1)Research on flexural strength and parameter optimization of Tshaped rectangular joints.Through the finite element analysis,the parameters of the bending strength of the right angle tenon are optimized,and the influence of distinct tenon width ingredient w,tenon width ply rate c and tenon length l on the buckle intensity of the T-cuboid right angle joints are studied.The tenon width ingredient w,tenon width rate c and tenon length l when the buckle intensity of the T-cuboid right angle joints is the great are acquisition,and the tension of T-cuboid right angle joints under extrinsic load is accounted.(2)Study on tensile strength and parameter optimization of dovetail joints.Through the finite element analysis,the parameters of the tensile strength of dovetail joints are optimized,and the effects of different tenon width factors w,tenon width ratio c and tenon surface angle on the tensile strength of dovetail joints are studied.The tenon width factor w,tenon width ratio c and tenon surface angle when the tensile strength of dovetail joints is optimal are obtained.Torsional strength and parameter optimization of dowel.Through the finite element analysis,the parameters of the torsional strength of the dowel are optimized,and the effects of the width w,the ratio of diameter to thickness d and the insertion depth between different tenons on the torsional strength of the tenon are studied.The width w between tenons,the ratio of diameter to thickness d are obtained when the torsional strength of tenon is the best.(3)Establishment and simplification principle of finite element model.The geometric model of furniture is similar to the actual structure in shape and size.The geometric model is internally similar to the actual structure,and the internal elements such as the connection between various parts,the transmission of internal force and the release of beam should be consistent with the reality.