本文關(guān)鍵詞：新型集裝箱蜂窩地板試驗(yàn)研究分析　出處：《華南理工大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 集裝箱地板 蜂窩夾層結(jié)構(gòu) 力學(xué)性能 ANSYS模擬分析

【摘要】：隨著現(xiàn)代運(yùn)輸業(yè)的飛速發(fā)展，集裝箱作為標(biāo)準(zhǔn)化的貨物運(yùn)輸載體在全球范圍得到普及，我國(guó)已成為集裝箱地板生產(chǎn)第一大國(guó)。在過去的30年中，集裝箱的每個(gè)部件及其生產(chǎn)過程都有了顯著的進(jìn)步，但集裝箱地板是個(gè)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(yīng)日漸減少而轉(zhuǎn)向用于其他行業(yè)，諸如家具制造業(yè)等更為贏利的產(chǎn)業(yè)，供給集裝箱地板的熱帶硬木早晚都會(huì)用完。并且傳統(tǒng)集裝箱地板存在著質(zhì)量重、生產(chǎn)工藝的落后的特點(diǎn)，集裝箱地板產(chǎn)業(yè)的發(fā)展已經(jīng)受到嚴(yán)重制約[1]。 蜂窩夾層結(jié)構(gòu)最早起源于仿生學(xué)，與同類型的實(shí)心材料相比，蜂窩夾層結(jié)構(gòu)具有比強(qiáng)度高、比剛度大、質(zhì)量輕的特點(diǎn)，因而在航空、航天等領(lǐng)域得到廣泛的應(yīng)用。針對(duì)蜂窩夾層結(jié)構(gòu)在集裝箱地板上的應(yīng)用進(jìn)行研究顯得十分必要。 本文以正六邊形蜂窩夾層結(jié)構(gòu)為主要研究對(duì)象，在前人研究成果的基礎(chǔ)上，首先從夾芯層結(jié)構(gòu)特征、蜂窩夾層板的等效力學(xué)性能進(jìn)行了研究，，根據(jù)三明治夾芯理論對(duì)蜂窩夾芯進(jìn)行等效分析，蜂窩夾芯層的彈性模量影響夾層板整體力學(xué)強(qiáng)度和剛度，而夾芯層的材料和結(jié)構(gòu)決定彈性模量的大��；然后根據(jù)集裝箱地板實(shí)際試驗(yàn)工況和傳統(tǒng)膠合木地板力學(xué)強(qiáng)度試驗(yàn)標(biāo)準(zhǔn)，根據(jù)已有蜂窩地板優(yōu)化結(jié)論，尋求出滿足集裝箱地板力學(xué)強(qiáng)度的蜂窩尺寸結(jié)構(gòu)；同時(shí)，根據(jù)小樣試驗(yàn)標(biāo)準(zhǔn)，利用ANSYS有限元軟件，模擬三點(diǎn)彎曲試驗(yàn)和壓塊試驗(yàn)，對(duì)蜂窩地板進(jìn)行靜力學(xué)分析，研究蜂窩夾層結(jié)構(gòu)地板的力學(xué)性能，討論蜂窩結(jié)構(gòu)材料應(yīng)用于集裝箱地板的可能性；最后，對(duì)蜂窩結(jié)構(gòu)進(jìn)行試驗(yàn)分析，根據(jù)彎曲強(qiáng)度試驗(yàn)過程和實(shí)測(cè)值，對(duì)蜂窩結(jié)構(gòu)的壓縮破壞階段進(jìn)行特征分析，并對(duì)蜂窩夾層結(jié)構(gòu)在三點(diǎn)彎曲強(qiáng)度和四點(diǎn)彎曲強(qiáng)度情況下可能出現(xiàn)的破壞模式進(jìn)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(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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