Design Of Wine Buffer Packaging Structure Based On Bistable Structure

In the process of transportation,red wine is usually subject to the pressure of the external environment and the impact force caused by the fall,which will cause the bottle to break,bringing huge loss of economic loss.At present,the research on the buffering performance of red wine transportation packaging is mainly through the selection of different internal buffering materials and increase the thickness of the packaging box.This makes the wine packaging buffer performance improvement space has a large limitation,and serious material loss.In order to provide better buffering performance in a limited space and reduce the use of buffering materials,this thesis designed the buffering structure of the wine transportation packaging.According to the analysis of the characteristics of the wine packaging,the structure that can play a good buffer effect should first meet the absorption of external energy,and then the structure should be able to withstand the compression and impact deformation brought by the wine.The structure used in this thesis is a bistable structure with the characteristics of energy absorption.The structure can absorb the external energy through the elastic buckling deformation of the structure,and has the recoverability.The research contents and results of this thesis are as follows:1.Through the symmetrical distribution of bistable inclined beams,four kinds of single cell structures,namely,cosine beam structure,non-straight beam structure,mirror cosine beam structure and composite curved beam structure,which are suitable for subsequent wine buffer structure are constructed.At 800 mm red wine of the instantaneous velocity falls on four kinds of structure load applied research the response characteristics of four kinds of single cell structure,and contrast to get cosine beam structure and the structure of the composite curved beam energy absorption characteristics,research series parallel combination again the response of the structure of these two kinds of structure,the results show that the response of the composite curved beam structure is more stable and energy absorption effect.2.The combined curved beam structure with better structure above was used to construct the wine packaging liner,and the overall wine transport packaging was constructed through the liner.Of red wine to transport packaging under different stacking form under the falling buffer effect,and different forms of impact protection,results show that the red wine packaging built in this thesis can provide a good buffer protection,compared with cartons of wine packaging,composite curved beam liner make bottle is one of the biggest impact falls by 54.1% maximum stress by 34.3%.3.The study found that the bistable structure is using its structure buckling complete external energy absorption,after verifying the composite curved beam structure can provide good buffer performance for red wine to transport,to constitute the structure size parameters change,the thickness,height,span the impact on the composite curved beam response characteristics,the results show that the The critical buckling threshold and energy absorption effect increase with the increase of thickness.The critical buckling threshold and energy absorption effect increase with the decrease of span.The influence of height on the response characteristics is complex.The height is taken as a variable to define the thickness proportionality coefficient Q and the span proportionality coefficient W,and the optimal span proportionality coefficient is found to be between 2.5 and 4,and the corresponding thickness proportionality coefficient is between 4 and 7.In this thesis,the bistable inclined beam structure is used to construct the buffer liner in the wine transportation packaging.Compared with the existing wine carton packaging,the combined curved beam structure greatly reduces the impact force of the wine.This thesis provides a new idea for the optimization of red wine transportation packaging from the structure.