發(fā)布時(shí)間：2018-01-03 19:07

  本文關(guān)鍵詞：參數(shù)化散料轉(zhuǎn)載系統(tǒng)計(jì)算機(jī)仿真研究　出處：《東北大學(xué)》2011年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 離散元法 轉(zhuǎn)載站 二次開(kāi)發(fā)

【摘要】：轉(zhuǎn)載系統(tǒng)是散料輸送系統(tǒng)的重要組成部分,它的設(shè)計(jì)直接影響輸送帶的使用壽命,對(duì)周圍環(huán)境也有極大的影響。離散元法(DEM)是一種研究非連續(xù)性顆粒物質(zhì)結(jié)構(gòu)和運(yùn)行規(guī)律的數(shù)值方法,廣泛應(yīng)用于巖體工程、采礦工程、散料運(yùn)輸?shù)确矫�。將DEM應(yīng)用于轉(zhuǎn)載系統(tǒng)的設(shè)計(jì)中可以在沒(méi)有可靠理論研究工業(yè)設(shè)備中顆粒運(yùn)動(dòng)的情況下,得到在實(shí)驗(yàn)中不易測(cè)得的數(shù)據(jù),設(shè)計(jì)并優(yōu)化設(shè)備結(jié)構(gòu)。參數(shù)化設(shè)計(jì)是一種廣泛應(yīng)用在工業(yè)界的全新設(shè)計(jì)方法,減少了產(chǎn)品設(shè)計(jì)中繁瑣的重復(fù)性工作,提高工作效率和質(zhì)量。 回顧了轉(zhuǎn)載站的發(fā)展歷程,提出了轉(zhuǎn)載站各部分的優(yōu)化設(shè)計(jì)方法。以Pro/Program參數(shù)化尺寸驅(qū)動(dòng)為基礎(chǔ),創(chuàng)建了轉(zhuǎn)載站的參數(shù)模型樣板,進(jìn)一步利用Pro/E提供的二次開(kāi)發(fā)工具ProToolkit與Visual C++2005編程環(huán)境,以動(dòng)態(tài)鏈接庫(kù)(DLL)的形式實(shí)現(xiàn)了Pro/E與MFC的連接,在Pro/E中添加菜單條、下拉菜單項(xiàng)及彈出式對(duì)話框,開(kāi)發(fā)出了參數(shù)化的轉(zhuǎn)載站系統(tǒng)。該系統(tǒng)具有直觀、友好的用戶設(shè)計(jì)界面,通過(guò)輸入一些基本參數(shù)就可以生成產(chǎn)相應(yīng)轉(zhuǎn)載站三維模型,模型可以自動(dòng)轉(zhuǎn)化成可導(dǎo)入EDEM軟件的iges格式,進(jìn)行離散元仿真,大大縮短設(shè)計(jì)周期。 比較了幾種典型轉(zhuǎn)載站結(jié)構(gòu)的優(yōu)缺點(diǎn)和適用環(huán)境。以某工程中轉(zhuǎn)載站為實(shí)例,實(shí)驗(yàn)比較了減低剪切模量和增大顆粒粒度等方法對(duì)DEM計(jì)算時(shí)間和實(shí)驗(yàn)結(jié)果的影響,提出了減少DEM仿真時(shí)間的方法。利用EDEM軟件實(shí)現(xiàn)了散料轉(zhuǎn)載過(guò)程的可視化,比較分析了直線型溜槽、折線型溜槽和曲線型溜槽中物料轉(zhuǎn)載效果,提出了理想的溜槽結(jié)構(gòu)。仿真分析了在轉(zhuǎn)載溜槽中添加篩條和階梯等結(jié)構(gòu)對(duì)控制料流和降低輸送帶磨損的效果。
[Abstract]:Transfer system is an important part of bulk material conveying system, it directly affects the service life of the conveyer belt, also have great influence on the surrounding environment. The discrete element method (DEM) is a kind of numerical method of discontinuous granular material structure and operation rules, widely used in rock engineering and mining engineering. The bulk material transportation. Based on DEM system can be reproduced in the absence of a reliable theory about motion of particles in industrial equipment, are not easily measured in the experiment data, the design and optimization of device structure. Parametric design is a new design method is widely used in the industry. To reduce the tedious repetitive work in product design, improve work efficiency and quality.
Review of the transfer station of the development process, put forward the optimization design method of each part of the transfer station. On the basis of Pro/Program parameterized model parameters, create a transfer station, further provided by Pro/E two development tools ProToolkit and Visual C++2005 programming environment, a dynamic link library (DLL) is achieved in the form of connect Pro/E and MFC, add in the Pro/E menu, the drop-down menu and pop-up dialog box, developed a parameterized transfer station system. The system is intuitive, user friendly interface, by inputting some basic parameters can generate the corresponding production transfer station of 3D model, model can be automatically translated into import the EDEM software of the IGES format, discrete element simulation, greatly shorten the design cycle.
Comparison of several typical transfer station structure advantages and disadvantages and applicable environment. Taking a project transfer station as an example, the influence of experimental comparison of shear modulus and the increase of particle size reduction methods of calculation time and experimental results of DEM, put forward the method to reduce the time of DEM simulation. Visualization of bulk material reproduced by EDEM process software, comparative analysis of the straight chute, the effects of the material transfer line type and curve type chute chute chute structure, put forward the ideal simulation analysis. Adding sieve and ladder structure material flow and reduce the wear effect on the conveyor belt control in the transfer chute.

【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TP391.9;TH22

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