發(fā)布時(shí)間：2018-08-15 14:03

【摘要】：我國(guó)公路建設(shè)雖然發(fā)展迅速,但由于壓實(shí)度不夠等因素而使路面面臨車轍、裂縫、水損壞等病害,真空壓實(shí)技術(shù)作為瀝青路面壓實(shí)的一項(xiàng)新技術(shù),具有減少瀝青混凝土內(nèi)部孔隙率、提高壓實(shí)度、延長(zhǎng)路面使用壽命等諸多優(yōu)點(diǎn),因此對(duì)真空壓實(shí)技術(shù)展開研究具有十分重要的現(xiàn)實(shí)意義。本文以試驗(yàn)研究為基礎(chǔ),通過(guò)室內(nèi)試驗(yàn)驗(yàn)證了真空壓實(shí)技術(shù)的可行性,并對(duì)真空壓實(shí)樣機(jī)設(shè)計(jì)、仿真展開研究。進(jìn)行真空壓實(shí)樣機(jī)設(shè)計(jì)前,首先對(duì)樣機(jī)密封方案進(jìn)行討論及實(shí)驗(yàn)驗(yàn)證、對(duì)樣機(jī)設(shè)計(jì)方案進(jìn)行研究。通過(guò)實(shí)驗(yàn)找到了較佳的密封方案,繼而對(duì)真空壓實(shí)原樣機(jī)方案做出簡(jiǎn)化。根據(jù)真空壓實(shí)樣機(jī)的設(shè)計(jì)要求,完成了總體設(shè)計(jì)及部件設(shè)計(jì)。真空壓實(shí)樣機(jī)主體部分的設(shè)計(jì)如行走系統(tǒng)、振動(dòng)系統(tǒng)、減振系統(tǒng)等主要參照手扶式振動(dòng)壓路機(jī)各個(gè)系統(tǒng)進(jìn)行設(shè)計(jì)。最后,利用三維建模軟件Pro/E建立了真空壓實(shí)樣機(jī)模型,并將其導(dǎo)入有限元分析軟件。利用ANSYS Workbench對(duì)樣機(jī)機(jī)架進(jìn)行靜力學(xué)分析及模態(tài)分析,得到機(jī)架的應(yīng)力、位移分布規(guī)律及機(jī)架的固有振動(dòng)特性。本文所完成的真空壓實(shí)原理性試驗(yàn)、所設(shè)計(jì)的真空壓實(shí)樣機(jī),為真空壓實(shí)技術(shù)的進(jìn)一步研究提供了平臺(tái)。
[Abstract]:Although highway construction in China is developing rapidly, due to insufficient compaction degree and other factors, pavement is faced with rutting, cracks, water damage and other diseases. Vacuum compaction technology is a new technology of asphalt pavement compaction. It has many advantages, such as reducing internal porosity of asphalt concrete, increasing compaction degree, prolonging pavement service life and so on. Therefore, the research on vacuum compaction technology is of great practical significance. Based on the experimental research, the feasibility of vacuum compaction technology is verified through laboratory tests, and the design and simulation of vacuum compaction prototype are studied. Before designing the vacuum compaction prototype, the sealing scheme of the prototype is discussed and verified by experiments, and the design scheme of the prototype is studied. A better sealing scheme was found through experiments, and then the original vacuum compaction prototype was simplified. According to the design requirements of vacuum compaction prototype, the overall design and component design are completed. The design of the main part of the vacuum compaction prototype, such as walking system, vibration absorption system and so on, mainly refers to the design of each system of the walking vibratory roller. Finally, the model of vacuum compaction prototype is established by using 3D modeling software Pro/E and imported into finite element analysis software. The static analysis and modal analysis of the prototype frame are carried out by using ANSYS Workbench, and the stress and displacement distribution of the frame and the inherent vibration characteristics of the frame are obtained. The vacuum compaction principle test and the vacuum compaction prototype designed in this paper provide a platform for further research on vacuum compaction technology.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U415.521

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本文編號(hào)：2184427