本文關(guān)鍵詞： 門式起重機 有限單元法 ANSYS 吊具系統(tǒng) 優(yōu)化設(shè)計　出處：《長安大學》2011年碩士論文　論文類型：學位論文

【摘要】：門式起重機是一種重要的物料搬運設(shè)備,廣泛應(yīng)用于橋梁、水利、車站、港口、電站等生產(chǎn)領(lǐng)域中。隨著我國經(jīng)濟的發(fā)展,它不僅在國民經(jīng)濟中占有重要的地位,在社會生產(chǎn)和生活的領(lǐng)域的應(yīng)用也在不斷擴大。鋼結(jié)構(gòu)設(shè)計是起重機系統(tǒng)設(shè)計中的重要環(huán)節(jié),合理的結(jié)構(gòu)設(shè)計可改善結(jié)構(gòu)力學性能、提高資源的利用率,具有重要的現(xiàn)實意義。 本文結(jié)合實際課題,以某公司生產(chǎn)的用于濟南黃河大橋主橋吊裝鋼箱梁用的單梁雙吊鉤門式起重機為研究對象,采用大型有限元計算軟件ANSYS為分析手段,建立了該起重機的有限元模型,對其進行靜強度、靜剛度、穩(wěn)定性分析和模態(tài)分析,得出該起重機滿足強度和剛度要求。提升系統(tǒng)是用來實現(xiàn)物料的垂直升降,是門式起重機最基本、也是最重要的部分,提升機構(gòu)的結(jié)構(gòu)特點與安全性能將直接關(guān)系到整機作業(yè)的安全性和可靠性。本文從單梁雙吊鉤門式起重機提升系統(tǒng)的組成部分及結(jié)構(gòu)特點出發(fā),建立了吊具系統(tǒng)的有限元模型,計算出吊具系統(tǒng)結(jié)構(gòu)強度和剛度,依據(jù)計算結(jié)果對吊具系進行了結(jié)構(gòu)改進,并對改進的吊具結(jié)構(gòu)進行了驗算,說明改進方案提高了提升系統(tǒng)的安全性。論文最后,通過APDL參數(shù)化建模,利用仿真軟件ANSYS優(yōu)化工具箱對起重機的主梁結(jié)構(gòu)進行了優(yōu)化設(shè)計,優(yōu)化后的主梁結(jié)構(gòu)自重減少了14.27%,并對優(yōu)化后的主梁進行了靜強度、靜剛度及穩(wěn)定性驗算,驗證了優(yōu)化結(jié)果的合理性和可靠性。 本文的研究結(jié)果表明,采用ANSYS有限元軟件對實際工程對象進行有限元分析與結(jié)構(gòu)優(yōu)化能夠縮短設(shè)計周期、降低生產(chǎn)成本,本文的研究可為同類產(chǎn)品的設(shè)計與優(yōu)化提供參考。
[Abstract]:Gantry crane is an important material handling equipment, widely used in bridge, water conservancy, station, port, power station and other production fields. It not only plays an important role in the national economy, but also expands its application in the field of social production and life. Steel structure design is an important link in the design of crane system. Reasonable structural design can improve the mechanical properties of the structure and increase the utilization of resources, which is of great practical significance. In this paper, a single beam double hook gantry crane used in the main bridge hoisting of Jinan Yellow River Bridge is taken as the research object. The finite element model of the crane is established by using the large finite element calculation software ANSYS, and the static strength, static stiffness, stability analysis and modal analysis are carried out. It is concluded that the crane meets the requirements of strength and stiffness. The lifting system is used to realize the vertical lifting of materials. It is the most basic and the most important part of the gantry crane. The structural characteristics and safety performance of the lifting mechanism will be directly related to the safety and reliability of the whole machine. This paper starts from the components and structural characteristics of the lifting system of single-beam double-hook gantry crane. The finite element model of the hoisting system is established, the strength and stiffness of the system are calculated, the structure of the suspension system is improved according to the calculation results, and the improved structure of the hoist is checked and calculated. The improved scheme improves the safety of the lifting system. Finally, through the APDL parametric modeling, using the simulation software ANSYS optimization toolbox to optimize the structure of the crane girder design. The dead weight of the optimized main beam structure is reduced by 14.27. The static strength, static stiffness and stability of the optimized main beam are checked to verify the rationality and reliability of the optimized results. The research results show that the finite element analysis and structure optimization of practical engineering objects by using ANSYS finite element software can shorten the design cycle and reduce the production cost. The research in this paper can provide reference for the design and optimization of similar products.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH213.5

【引證文獻】

相關(guān)碩士學位論文 前1條

1 丁保安;基于APDL的門式起重機有限元分析及優(yōu)化系統(tǒng)研究[D];武漢理工大學;2012年

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本文編號：1442720