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  本文關鍵詞：新型集裝箱蜂窩地板試驗研究分析　出處：《華南理工大學》2012年碩士論文　論文類型：學位論文

  更多相關文章： 集裝箱地板 蜂窩夾層結構 力學性能 ANSYS模擬分析

【摘要】：隨著現(xiàn)代運輸業(yè)的飛速發(fā)展，集裝箱作為標準化的貨物運輸載體在全球范圍得到普及，我國已成為集裝箱地板生產第一大國。在過去的30年中，集裝箱的每個部件及其生產過程都有了顯著的進步，但集裝箱地板是個例外。集裝箱地板行業(yè)一直非常依賴熱帶硬木地板，由于熱帶硬木的供應日漸減少而轉向用于其他行業(yè)，諸如家具制造業(yè)等更為贏利的產業(yè)，供給集裝箱地板的熱帶硬木早晚都會用完。并且傳統(tǒng)集裝箱地板存在著質量重、生產工藝的落后的特點，集裝箱地板產業(yè)的發(fā)展已經(jīng)受到嚴重制約[1]。 蜂窩夾層結構最早起源于仿生學，與同類型的實心材料相比，蜂窩夾層結構具有比強度高、比剛度大、質量輕的特點，因而在航空、航天等領域得到廣泛的應用。針對蜂窩夾層結構在集裝箱地板上的應用進行研究顯得十分必要。 本文以正六邊形蜂窩夾層結構為主要研究對象，在前人研究成果的基礎上，首先從夾芯層結構特征、蜂窩夾層板的等效力學性能進行了研究，，根據(jù)三明治夾芯理論對蜂窩夾芯進行等效分析，蜂窩夾芯層的彈性模量影響夾層板整體力學強度和剛度，而夾芯層的材料和結構決定彈性模量的大��；然后根據(jù)集裝箱地板實際試驗工況和傳統(tǒng)膠合木地板力學強度試驗標準，根據(jù)已有蜂窩地板優(yōu)化結論，尋求出滿足集裝箱地板力學強度的蜂窩尺寸結構；同時，根據(jù)小樣試驗標準，利用ANSYS有限元軟件，模擬三點彎曲試驗和壓塊試驗，對蜂窩地板進行靜力學分析，研究蜂窩夾層結構地板的力學性能，討論蜂窩結構材料應用于集裝箱地板的可能性；最后，對蜂窩結構進行試驗分析，根據(jù)彎曲強度試驗過程和實測值，對蜂窩結構的壓縮破壞階段進行特征分析，并對蜂窩夾層結構在三點彎曲強度和四點彎曲強度情況下可能出現(xiàn)的破壞模式進行分析。
[Abstract]:With the rapid development of modern transport industry, container as a standardized carrier of cargo transportation has been popularized in the world, China has become the largest container floor production country. In the past 30 years. Every part of the container and its production process has improved significantly, except for container flooring, which has been heavily dependent on tropical hardwood flooring. As the supply of tropical hardwoods dwindles, they are diverted to other industries, such as furniture manufacturing, which are more profitable. The tropical hardwood supplying container floor will run out sooner or later. And the traditional container floor has the characteristics of heavy quality and backward production technology, the development of container floor industry has been seriously restricted. [1]. Honeycomb sandwich structure originated from bionics, compared with the same type of solid materials, honeycomb sandwich structure has the characteristics of high specific strength, high specific stiffness and light mass, so it is in aviation. The application of honeycomb sandwich structure on container floor is very necessary. In this paper, hexagonal honeycomb sandwich structure as the main research object, on the basis of previous research results, first from the sandwich layer structure characteristics, honeycomb sandwich plate equivalent mechanical properties were studied. According to sandwich sandwich sandwich theory, the equivalent analysis of honeycomb sandwich core is carried out. The elastic modulus of honeycomb sandwich layer affects the overall mechanical strength and stiffness of sandwich plate, while the material and structure of sandwich layer determine the magnitude of elastic modulus. Then according to the actual test conditions of container flooring and the test standard of mechanical strength of traditional glued wood flooring, according to the existing optimization conclusions of honeycomb flooring, the honeycomb size structure which can meet the mechanical strength of container flooring is found out. At the same time, according to the small sample test standard, using ANSYS finite element software, simulating three-point bending test and block test, the static analysis of honeycomb flooring is carried out, and the mechanical properties of honeycomb sandwich flooring are studied. The possibility of applying honeycomb structure materials to container flooring is discussed. Finally, the honeycomb structure is tested and analyzed. According to the bending strength test process and the measured value, the characteristics of the honeycomb structure in compression failure stage are analyzed. The failure modes of honeycomb sandwich structures under three point bending strength and four point bending strength are analyzed.
【學位授予單位】：華南理工大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH247

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