發(fā)布時(shí)間：2018-04-15 07:28

  本文選題：蜂窩集裝箱地板 + 優(yōu)化設(shè)計(jì)　； 參考：《華南理工大學(xué)》2012年碩士論文

【摘要】：在滿足集裝箱地板的強(qiáng)度要求前提下，減少自身重量，以增加貨運(yùn)量，是對(duì)集裝箱地板制造業(yè)提出的特殊要求。而對(duì)集裝箱地板的結(jié)構(gòu)進(jìn)行優(yōu)化，可以解決上述的特殊要求。 本文在分析國內(nèi)外集裝箱地板的研究成果和應(yīng)用現(xiàn)狀的基礎(chǔ)上，，提出采用鋁合金作為面層材料，增強(qiáng)鋁蜂窩芯作為中間層，使用膠黏劑將蜂窩芯與面板粘結(jié)、定型、固化，制造出高性能輕質(zhì)的鋁蜂窩地板應(yīng)用于替代傳統(tǒng)的硬木膠合板。并對(duì)新型的蜂窩集裝箱地板進(jìn)行結(jié)構(gòu)上的優(yōu)化及改進(jìn)，以減輕集裝箱地板重量，降低能耗，提高零部件的利用率。 試制蜂窩地板，研究其在彎曲載荷作用下的失效形式，并分析其失效的原因，得出蜂窩芯的強(qiáng)度性能和面層的彎曲性能對(duì)整體蜂窩地板的力學(xué)性能具有極大的影響，優(yōu)化模型的建立需要考慮上述因素。 根據(jù)蜂窩集裝箱地板結(jié)構(gòu)的優(yōu)化設(shè)計(jì)準(zhǔn)則，從蜂窩集裝箱地板的彎曲性能、蜂窩芯強(qiáng)度要求、夾層板的自由振動(dòng)固有頻率和夾層板質(zhì)量四個(gè)方面進(jìn)行優(yōu)化，并以穩(wěn)定性條件、屈曲極值條件、剪切強(qiáng)度條件和地板剛度條件作為四個(gè)約束條件，構(gòu)造評(píng)價(jià)函數(shù)，編寫程序，得出較高精度的尺寸和性能的最優(yōu)值，并對(duì)結(jié)構(gòu)進(jìn)行強(qiáng)度校核，得出集裝箱地板優(yōu)化結(jié)構(gòu)，結(jié)果表明優(yōu)化出集裝箱地板能滿足使用要求。 但鋁蜂窩地板的成本高，使得其難以用于大規(guī)模的生產(chǎn)。為了促進(jìn)新蜂窩地板在實(shí)際工程中的推廣應(yīng)用，提高蜂窩地板的抗彎剛度，增大其截面的慣性矩，本文在原優(yōu)化的蜂窩地板的基礎(chǔ)上進(jìn)行改進(jìn)，提出以鋁合金為面板，鋁蜂窩芯和玻璃鋼加強(qiáng)筋形成芯層的改進(jìn)的夾層結(jié)構(gòu)，這種結(jié)構(gòu)的比剛度和比強(qiáng)度較之純粹的鋁蜂窩夾層結(jié)構(gòu)更好。且制造成本有明顯的降低。
[Abstract]:It is a special requirement for container flooring manufacturing industry to reduce its own weight and increase freight capacity on the premise of meeting the requirements of container floor strength.The structure of the container floor optimization, can solve the special requirements mentioned above.On the basis of analyzing the research results and application status of container floor at home and abroad, this paper puts forward that aluminum alloy is used as surface layer material, aluminum honeycomb core is used as intermediate layer, honeycomb core is bonded with face panel by adhesive agent, and the honeycomb core is fixed and solidified.High-performance lightweight aluminum honeycomb floor is used to replace traditional hardwood plywood.The structure of the new honeycomb container floor is optimized and improved in order to reduce the weight of container floor, reduce energy consumption and improve the utilization ratio of components.In this paper, the failure form of honeycomb flooring under bending load is studied, and the causes of failure are analyzed. It is concluded that the strength performance of honeycomb core and the bending performance of surface layer have great influence on the mechanical properties of honeycomb flooring.The above factors need to be taken into account in the establishment of the optimization model.According to the optimum design criteria of honeycomb container floor structure, the bending performance of honeycomb container floor, the strength requirement of honeycomb core, the natural frequency of free vibration of sandwich plate and the quality of sandwich plate are optimized, and the stability conditions are used.As four constraints, the extreme buckling condition, shear strength condition and floor stiffness condition are used to construct the evaluation function, write a program, obtain the optimum value of the dimension and performance of the structure with higher precision, and check the strength of the structure.The optimized structure of container floor is obtained, and the result shows that the optimized container floor can meet the requirements.But the high cost of aluminum honeycomb floor makes it difficult to use in large-scale production.In order to promote the application of new honeycomb flooring in practical engineering, improve the bending stiffness of honeycomb flooring and increase the moment of inertia of its section, this paper improves on the original optimized honeycomb flooring, and puts forward the aluminum alloy as the panel.Aluminum honeycomb core and FRP reinforced bars form an improved sandwich structure with core layer. The specific stiffness and specific strength of this structure are better than those of pure aluminum honeycomb sandwich structure.And the manufacturing cost is obviously reduced.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH247

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