本文選題：液壓支架　切入點(diǎn)：有限元分析　出處：《西安科技大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：本文以ZY6800/15/32D型液壓支架為研究對(duì)象,建立了該支架三維虛擬樣機(jī),以《煤礦液壓支架第一部分:通用技術(shù)條件》中的強(qiáng)度試驗(yàn)條款要求為加載條件,對(duì)支架整體進(jìn)行了的有限元強(qiáng)度模擬分析。參照分析結(jié)果完成的該支架樣機(jī)設(shè)計(jì)在試驗(yàn)臺(tái)上以同樣條件進(jìn)行了支架強(qiáng)度試驗(yàn),試驗(yàn)過程中對(duì)關(guān)鍵部位(點(diǎn))的做了應(yīng)力測試。有限元強(qiáng)度分析數(shù)據(jù)與試驗(yàn)測試數(shù)據(jù)的對(duì)比,驗(yàn)證了有限元分析過程和數(shù)據(jù)結(jié)果的可信性和正確性,為該支架一次性試制成功提供了理論指導(dǎo)。使用CATIA軟件對(duì)ZY6800/15/32D型液壓支架創(chuàng)建三維實(shí)體模型,使用ABAQUS有限元分析軟件對(duì)其進(jìn)行靜力學(xué)結(jié)構(gòu)分析。有限元分析過程中,對(duì)支架的三維實(shí)體模型進(jìn)行了模型的簡化、裝配、支架各部件接觸面的處理、單元類型的選擇、網(wǎng)格的劃分、邊界條件的處理和載荷的施加等方面的研究。支架樣機(jī)的承載強(qiáng)度試驗(yàn)依據(jù)最新液壓支架的試驗(yàn)標(biāo)準(zhǔn)《煤礦液壓支架第一部分:通用技術(shù)條件》確定危險(xiǎn)工況和邊界載荷條件。分別以頂梁偏載和頂梁扭轉(zhuǎn)兩種最惡劣的承載工況進(jìn)行加載試驗(yàn),采集關(guān)鍵部位的試驗(yàn)數(shù)據(jù)并與有限元分析結(jié)果對(duì)比分析,兩者基本一致。說明本文的有限元分析過程和結(jié)果是基本正確的,用此得到的所有數(shù)據(jù)可以全面指導(dǎo)該液壓支架所有結(jié)構(gòu)件的設(shè)計(jì)。利用ABAQUS中weld模塊處理支架底座柱窩與周圍筋板的焊縫連接,與底座一體化建模形成實(shí)體連接的分析結(jié)果進(jìn)行了對(duì)比分析,兩種處理方式在柱窩周圍局部的應(yīng)力應(yīng)變還是有一定差異,一體化實(shí)體連接建模比焊接連接產(chǎn)生的應(yīng)力應(yīng)變要小。據(jù)此,通常為簡化模型和減少支架結(jié)構(gòu)件中大量的焊縫連接處理而采用的一體化實(shí)體建模,這種方式得到的有限元計(jì)算數(shù)據(jù)在集中受力和模量突變的區(qū)域應(yīng)增加一定的系數(shù),或做必要的局部焊縫連接的細(xì)化處理。
[Abstract]:In this paper, the ZY6800/15/32D hydraulic support as the research object, established the three-dimensional virtual prototype, the "coal mine hydraulic support the first part: the strength test of general technical conditions in terms of > requirements for loading conditions, simulation analysis of finite element strength to support the whole paper. According to the analysis results of the prototype design is completed in the bracket test bench in the same conditions of support strength test, during the test of the key parts (points) do a stress test. The comparative analysis of data and the test data of the finite element strength, verified the finite element analysis process and results and correct, the support for a successful trial of the one-time theoretical guidance. The use of CATIA software on the ZY6800/15/32D hydraulic support to create 3D model, static structural analysis of the finite element analysis software ABAQUS. Finite element analysis In the process, a three-dimensional solid model to support the model simplification, each part of the support assembly, contact surface treatment, the choice of element type, mesh, load and boundary conditions of the applied aspects. Support prototype bearing test according to the intensity of the latest standard test of hydraulic support's hydraulic support in coal mine the first part: the general technical conditions > to determine the dangerous working conditions and boundary conditions. By beam partial load and torsion beam two worst loading bearing conditions, analysis of test data of key parts collected and compared with the results of finite element analysis, the two are basically the same. It shows that finite element analysis in this paper is the basic process and results right, all the data obtained by this design can guide the hydraulic support of all structures. Using the ABAQUS weld module support base column and peripheral rib fossa In the weld connection, comparing with the base of integrated modeling form entity linkage analysis, two kinds of treatment methods in the column nest around the local stress and strain was different, the stress and strain of the integration of the physical connection model than welding connection have small. According to this, usually for the simplified model and reduce support structure in a large number of weld connection processing by the integration of solid modeling, finite element calculation of the data in this way are concentrated by mutation force and modulus area should increase the coefficient, or do the necessary connection of the local weld refinement.

【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TD355.4

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