Lightweight Design And Research For A 20-feet Special Container

In recent years,container,as a standardized means of transportation,plays more and more important role in the logistics industry,and its range of application is more and more widely.The lightweight of container’s tare weight,can not only save material,but also improve the payload of container.Especially when the transportation cost is getting higher,the lightweight can also reduce the logistics cost,cut down vehicle emissions,and help to develop the containerized transportation.According to existing research result and literature material of container,although container has been optimized gradually after more than 30 years’ experience in China,it’s main structure has few change,and the containerized transportation is still very limited.This paper is focus on the research of lightweight design for 20-feet special container,present a proper solution based on lightweight design,establishment of model,utility of finite element analysis,and verification by product testing.In this process,it mainly use the product optimization theory,and set up equivalent mathematical model;it also makes full use of software such as SolidWorks as the 3d modeling software,ANSYS Workbench as finite element analysis software,MATLAB as data analysis software,and the orthogonal experiment assistant tools for research work.This paper takes a 20-feet special container product as the specific research object,firstly comes up with testing programs which are based on the theory of lightweight design and orthogonal experiment,to optimize the dimension of various main parts of container.Secondly,set up model by 3d software for each testing program,to get testing result respectively by finite element analysis regarding maximum deformation,maximum stress and the body weight data etc.Thirdly,establish corresponding mathematical model according to finite element analysis result,and optimized container structure program to update the 3d model which can be re-verified by finite element analysis.After the lightweight container being manufactured by factory and passed all required testing,it can be concluded as qualified product and approved for mass production.Finally,according to the lightweight design process of the special container product,the lightweight design scheme is concluded.Through the research and experimental verification of this paper,it can be concluded that after lightweight design the weight of special container has been reduced by 83.13 kg or 3.69%.The maximum deformation displacement and maximum stress of bottom beams are within the allowable range.The lightweight effect is obvious and the lightweight special container fully ensure its performance requirements.At the same time,a complete method of lightweight design flow for special containers is also summarized,from original structural design to finite element analysis,lightweight design,structural optimization,test verification and mass promotion.The research results provide a feasible scheme for lightweight design of special container products.