Structural Analysis And Optimization Of The NBI Comprehensive Testboard Vacuum Cylinder

The finite element technology as a performance of a kind of very effective means, caneasily solve all kinds of complicated engineering structural problems. Modern structureoptimization theory and method based on modern mechanics theory and mathematicaloptimization algorithm as the theoretical basis of the proposed new theory and method forthe engineering design personnel have sought out optimization scheme provides theorybasis. Through the finite element technology and modern structure optimization theory andmethod of organic union, can effectively improve design level, reduce the consumption ofmaterials, shortened product design cycle, and enhance the market competitiveness ofproducts. This paper is through using the finite element technology analyse the structure ofthe NBI comprehensive testboard vacuum cylinder, to verify the stability and safetyreliability of the vacuum cylinder, while combining modern structure optimization theoryand methods Optimize and improve the structure of vacuum cylinder, to reduce weight andcost saving.First proceeding the basic mechanics analysis of the NBI comprehensive testboardvacuum cylinder, clear the situation of the vacuum cylinder; Second using finite elementanalysis software establish the finite element model of the vacuum cylinder, on the basis ofthe above proceeding the related research about the static analysis and modal analysis of thevacuum cylinder.Through the static analysis and research of the vacuum cylinder, verified the structure’stability and the safety and reliability of the vacuum cylinder. Through analysing andresearching the numerical results, found that the vacuum cylinder’s maximum stress is farless than the allowable stress of the material, and concludes a conclusion is that the vacuumcylinder structure meet its intensity and rigidity requirements. At the same time accordingthe analysis conclusion, proposed to the improvement scheme of the vacuum cylinderstructure.Through the modal analysis and research of the vacuum cylinder, solved the vacuumcylinder’s whole six modes of the inherent frequency, through analysing and researching ofthe natural frequency, when the vacuum cylinder in the work condition effectively avoidresonance happened providing the theoretical basis, and put forward the effectivelymeasures used to avoid resonance happened. On the basis of finite element analysis, according to the structure’s improvementscheme, established the vacuum cylinder’s size optimization model, seeked out theoptimization scheme. Through the optimization scheme proceeding the corresponding finiteelement analysis of the vacuum cylinder, and compare to the structure performance of thevacuum cylinder in optimization of the before and after, analysis of the vacuum cylinderafter optimization structure not only in performance meet the demands, and effectivelyreduce the weight of the vacuum cylinder, to the purpose of the cost savings.