發(fā)布時(shí)間：2018-08-11 15:25

【摘要】：桁架是金屬結(jié)構(gòu)中的一種主要結(jié)構(gòu)形式，具有重量輕、剛度大、抗震性能好、節(jié)省材料等優(yōu)點(diǎn)，廣泛應(yīng)用于起重運(yùn)輸機(jī)械、建筑、橋梁、工廠車(chē)間以及各種支承骨架等。本文以圓管帶式輸送機(jī)為例，對(duì)其桁架梁進(jìn)行有限元分析。在可視化研究過(guò)程中，將力學(xué)分析分為常規(guī)計(jì)算和有限元分析兩大模塊，并將這兩大模塊視為目標(biāo)系統(tǒng)。 常規(guī)計(jì)算模塊：根據(jù)桁架梁的實(shí)體模型，建立相應(yīng)的力學(xué)模型。分析桁架梁所承受的各種載荷形式，確定工況并選擇載荷組合，總結(jié)并歸納出桁架梁內(nèi)力計(jì)算的遞推公式，計(jì)算出桁架梁各桿件的內(nèi)力，，并對(duì)桿件的強(qiáng)度、剛度和穩(wěn)定性進(jìn)行校核，最后生成設(shè)計(jì)計(jì)算說(shuō)明書(shū)。 有限元分析模塊：建立桁架梁的有限元模型，利用ANSYS軟件進(jìn)行有限元分析，編寫(xiě)APDL程序完成有限元前處理、求解和后處理三大步驟的參數(shù)化分析，并輸出應(yīng)力應(yīng)變?cè)茍D。 本文首先對(duì)目標(biāo)系統(tǒng)進(jìn)行了總體需求分析，然后在需求分析的基礎(chǔ)上進(jìn)行了相應(yīng)的功能分析。根據(jù)桁架梁的力學(xué)分析過(guò)程，利用Visual C++語(yǔ)言編制相應(yīng)程序，建立人機(jī)友好界面，進(jìn)行參數(shù)化設(shè)計(jì)，實(shí)現(xiàn)數(shù)據(jù)共享，提高系統(tǒng)的可視化程度。將分析計(jì)算的結(jié)果按照文本形式輸出，生成計(jì)算說(shuō)明書(shū)，讓用戶(hù)得到精確的數(shù)據(jù)，大大減少了設(shè)計(jì)人員的工作量。最后結(jié)合工程實(shí)例，用本文設(shè)計(jì)的軟件分別運(yùn)行常規(guī)計(jì)算和有限元分析兩大模塊，生成計(jì)算說(shuō)明書(shū)，將常規(guī)計(jì)算和有限元分析的結(jié)果進(jìn)行對(duì)比，得到有限元分析與常規(guī)計(jì)算的結(jié)果相近且均滿(mǎn)足工程要求，體現(xiàn)了基于APDL的桁架梁有限元分析可視化軟件的優(yōu)越性，具有一定的工程實(shí)用價(jià)值。
[Abstract]:Truss is one of the main structural forms in metal structures, which has the advantages of light weight, large stiffness, good seismic performance and material saving. It is widely used in crane transportation machinery, buildings, bridges, factory workshops and various supporting skeletons. In this paper, the truss beam of circular pipe belt conveyor is analyzed by finite element method. In the process of visualization research, mechanical analysis is divided into two modules: conventional calculation and finite element analysis, and these two modules are regarded as the target system. Conventional calculation module: according to the solid model of truss beam, the corresponding mechanical model is established. This paper analyzes the various load forms of truss beam, determines the working condition and selects the load combination, summarizes and induces the recursive formula for calculating the internal force of the truss beam, calculates the internal force of each member of the truss beam, and the strength of the truss beam. The stiffness and stability are checked and the design calculation instruction is generated. Finite element analysis module: the finite element model of truss beam is established, the finite element analysis is carried out by using ANSYS software, the APDL program is compiled to complete the pre-processing of finite element, the parameterized analysis of the three steps of solving and post-processing, and the output of stress-strain cloud diagram. In this paper, the general requirement analysis of the target system is first carried out, and then the corresponding function analysis is carried out on the basis of the requirement analysis. According to the mechanical analysis process of truss beam, the corresponding program is compiled by Visual C language, and the man-machine friendly interface is established, the parameterized design is carried out, the data sharing is realized, and the visualization degree of the system is improved. The result of analysis and calculation is output according to the text form, and the calculation specification is generated, which makes the user get accurate data and greatly reduces the workload of the designer. Finally, combined with engineering examples, the software designed in this paper is used to run two modules of conventional calculation and finite element analysis, and generate calculation instructions, and compare the results of conventional calculation and finite element analysis. The results of finite element analysis are similar to those of conventional calculation and meet the engineering requirements. It shows the superiority of the visualization software of finite element analysis of truss beam based on APDL and has certain engineering practical value.
【學(xué)位授予單位】：太原科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH222

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 陳杰;;芻議國(guó)外建筑鋼結(jié)構(gòu)的應(yīng)用[J];硅谷;2008年05期

2 王晨;平面桁架內(nèi)力計(jì)算的簡(jiǎn)化[J];山西建筑;2005年01期

3 劉彩棉;鄒小平;;復(fù)雜桁架的內(nèi)力計(jì)算[J];山西建筑;2007年06期

4 孟文俊;黃琪;王靜;陳洪鷹;;圓管帶式輸送機(jī)的設(shè)計(jì)與選型[J];硫磷設(shè)計(jì)與粉體工程;2009年06期

5 袁坤;;淺談國(guó)內(nèi)外鋼結(jié)構(gòu)建筑發(fā)展現(xiàn)狀及防火對(duì)策[J];黑龍江科技信息;2007年03期

6 陳清陽(yáng);趙鈺;楊國(guó)華;李建武;蔡衛(wèi);;重型機(jī)械金屬結(jié)構(gòu)行業(yè)焊接技術(shù)現(xiàn)狀和發(fā)展趨勢(shì)(上)[J];機(jī)械工人(熱加工);2007年09期

7 陳清陽(yáng);趙鈺;楊國(guó)華;李建武;蔡衛(wèi);;重型機(jī)械金屬結(jié)構(gòu)行業(yè)焊接技術(shù)現(xiàn)狀和發(fā)展趨勢(shì)(下)[J];機(jī)械工人(熱加工);2007年10期

8 李艷鵬;;淺談鋼結(jié)構(gòu)的發(fā)展趨勢(shì)[J];科技資訊;2008年10期

相關(guān)碩士學(xué)位論文 前5條

1 黎勝龍;圓管帶式輸送機(jī)整體機(jī)架結(jié)構(gòu)的動(dòng)態(tài)特性以及對(duì)隨機(jī)風(fēng)環(huán)境適應(yīng)性研究[D];湖南大學(xué);2006年

2 韓濤;圓管帶式輸送機(jī)輸送機(jī)理及優(yōu)化設(shè)計(jì)研究[D];貴州大學(xué);2006年

3 于野;圓管帶式輸送機(jī)設(shè)計(jì)理論的研究[D];東北大學(xué);2006年

4 高志虎;基于有限元分析的大型塔內(nèi)件桁架支承結(jié)構(gòu)優(yōu)化設(shè)計(jì)[D];天津大學(xué);2008年

5 郭遐;圓管帶式輸送機(jī)金屬結(jié)構(gòu)受力分析與計(jì)算[D];太原科技大學(xué);2009年

本文編號(hào)：2177399