【摘要】：21世紀(jì)地表淺部的礦業(yè)資源日益貧瘠甚至枯竭,采礦業(yè)逐步向地表的深部發(fā)展,地表無軌自行設(shè)備一地下鏟運(yùn)機(jī)得到了日趨廣泛的應(yīng)用。地下鏟運(yùn)機(jī)前后車體是通過縱向銷軸連接在一起的,車體的結(jié)構(gòu)不規(guī)則,穩(wěn)定性并不理想,在斜坡或者更為顛簸的路面工作極易發(fā)生安全事故。但使用物理樣機(jī)試驗的方法并不具有可行性,這導(dǎo)致地下鏟運(yùn)機(jī)斜坡穩(wěn)定行研究遠(yuǎn)遠(yuǎn)不夠。 產(chǎn)品設(shè)計人員運(yùn)用虛擬樣機(jī)技術(shù)可以在虛擬環(huán)境下對產(chǎn)品的受力情況和整體運(yùn)動進(jìn)行模擬,有了虛擬樣機(jī)技術(shù)的支撐設(shè)計人員可以快速地分析出很多不同的方案,與此同時還可以進(jìn)行對于物理樣機(jī)來說難以進(jìn)行或者無法實現(xiàn)的試驗,最終得到的設(shè)計方案可以說是系統(tǒng)級的。虛擬樣機(jī)技術(shù)的應(yīng)用大大縮短了開發(fā)周期,并且明顯提高了效率和涉及的質(zhì)量。 本文則結(jié)合多體系統(tǒng)動力學(xué)分析以及虛擬樣機(jī)技術(shù)等,以某廠生產(chǎn)的2m3自行式地下鏟運(yùn)機(jī)為研究對象重點對縱向穩(wěn)定性展開了研究。根據(jù)地下鏟運(yùn)機(jī)靜態(tài)穩(wěn)定性理論,對地下鏟運(yùn)機(jī)靜態(tài)縱向穩(wěn)定性以及靜態(tài)橫向一、二級穩(wěn)定性進(jìn)行了詳細(xì)的分析,以尋求合理的實驗方案；應(yīng)用三維參數(shù)化設(shè)計軟件SolidWorks建立簡化的地下鏟運(yùn)機(jī)三維實體模型,探索了SolidWorks與機(jī)械系統(tǒng)動力學(xué)軟件ADAMS之間數(shù)據(jù)傳遞的方法并將簡化模型成功導(dǎo)入ADAMS中,在ADAMS中完成了簡化的地下鏟運(yùn)機(jī)虛擬樣機(jī)模型的創(chuàng)建并驗證了該虛擬樣機(jī)模型的合理性；通過大量的地下鏟運(yùn)機(jī)動力學(xué)仿真,結(jié)合以地下鏟運(yùn)機(jī)縱向穩(wěn)定性評價指標(biāo),完成了外界因素(卸載高度、偏載程度、超載程度)對地下鏟運(yùn)機(jī)縱向穩(wěn)定性影響的分析與評價,對操作者具有極大的指導(dǎo)和參考意義。
[Abstract]:In the 21 ~ (st) century, the mining resources in the shallow part of the earth's surface are increasingly poor or even exhausted. The mining industry is gradually developing to the deep part of the earth's surface, and the underground scraper, the surface trackless self-equipment, has been used more and more widely. The front and rear body of the underground scraper is connected by longitudinal pin shaft, the structure of the body is irregular and the stability is not ideal, so it is easy to happen safety accidents when working on the slope or on the bumpy road surface. However, the method of physical prototype test is not feasible, which leads to insufficient research on slope stability of underground scraper. Product designers can use virtual prototyping technology to simulate the force and overall motion of products in virtual environment. With the support of virtual prototyping technology, designers can quickly analyze many different schemes. At the same time, it is possible to carry out experiments that are difficult or impossible to implement for the physical prototype, and the final design scheme can be said to be system-level. The application of virtual prototyping technology greatly shortens the development cycle and improves efficiency and quality obviously. Based on the dynamic analysis of multi-body system and virtual prototyping technology, the longitudinal stability of 2m3 self-propelled underground scraper produced by a factory is studied in this paper. According to the static stability theory of underground scraper, the static longitudinal stability and static horizontal and secondary stability of underground scraper are analyzed in detail in order to find a reasonable experimental scheme. The simplified 3D solid model of underground scraper is established by using 3D parameterized design software SolidWorks. The method of data transfer between SolidWorks and mechanical system dynamics software ADAMS is explored, and the simplified model is successfully imported into ADAMS. The simplified virtual prototype model of underground scraper is built in ADAMS and the rationality of the model is verified. Through a large number of dynamic simulation of underground scraper, combined with the evaluation index of longitudinal stability of underground scraper, the influence of external factors (unloading height, degree of partial load, degree of overload) on longitudinal stability of underground scraper is analyzed and evaluated. It has great guidance and reference significance to the operator.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD422.4

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