【摘要】：本文是以吉林大學(xué)與廈門廈工重工有限公司的合作項(xiàng)目“XGQ3650礦用自卸車車架研究”為依托，，針對(duì)非公路礦用寬體自卸車載重量大、工作時(shí)間長、實(shí)驗(yàn)成本高、無行業(yè)標(biāo)準(zhǔn)等特點(diǎn)，運(yùn)用多體動(dòng)力學(xué)、理論力學(xué)、材料力學(xué)等理論，對(duì)該非公路礦用寬體自卸車的通過性、操作穩(wěn)定性以及平順性進(jìn)行了分析。并將研究成果應(yīng)用于實(shí)際工程中，為非公路礦用寬體自卸車的設(shè)計(jì)與改進(jìn)提供了一定的理論依據(jù)與技術(shù)支持。 首先，針對(duì)對(duì)仿真結(jié)果影響較大的鋼板彈簧、車架以及路面進(jìn)行了研究。應(yīng)用美國汽車工程學(xué)會(huì)推薦的鋼板彈簧三連桿設(shè)計(jì)標(biāo)準(zhǔn)建立了前后鋼板彈簧模型。考慮到車架變形對(duì)仿真結(jié)果的影響，將車架進(jìn)行柔性化處理。另外，利用正弦疊加原理建立了各種實(shí)驗(yàn)路面。建立包括前懸架系統(tǒng)、后懸架系統(tǒng)、轉(zhuǎn)向系統(tǒng)、柔性車架、駕駛室、路面等在內(nèi)的整車剛?cè)狁詈夏Ｐ�。將所建立模型的仿真結(jié)果與實(shí)驗(yàn)結(jié)果進(jìn)行對(duì)比分析，驗(yàn)證了所建立的多體動(dòng)力學(xué)模型的正確性，為后繼的仿真分析打下了基礎(chǔ)。 然后，利用所建立的整車剛?cè)狁詈夏Ｐ�，分析了該非公路礦用寬體自卸車的通過性。分別分析了該車在搓板路工況、上下坡工況以及側(cè)傾坡工況下前后懸架系統(tǒng)的受力與位移，并提出相應(yīng)的改進(jìn)意見。 最后，利用所建立的整車剛?cè)狁詈夏Ｐ�，借鑒相應(yīng)國家標(biāo)準(zhǔn)分析了該非公路礦用寬體自卸車的操作穩(wěn)定性與平順性。為非公路礦用寬體自卸車的設(shè)計(jì)提供了依據(jù)。
[Abstract]:Based on the cooperative project of Jilin University and Xiamen Industry heavy Industry Co., Ltd, "Research on the frame of XGQ3650 Mine dump truck", this paper aims at the large load weight, long working time and high experimental cost of the off-road mine wide-body dump truck. Based on the theory of multi-body dynamics, theoretical mechanics, material mechanics and so on, the passage, operation stability and ride comfort of the off-road mine wide-body dump truck are analyzed by means of the theory of multi-body dynamics, theoretical mechanics and material mechanics. The research results are applied to practical engineering, which provides a certain theoretical basis and technical support for the design and improvement of wide-body dump truck for off-road mining. Firstly, the leaf spring, frame and road surface which have great influence on the simulation results are studied. The model of front and rear leaf spring is established by using the design standard of leaf spring three-link recommended by American Society of Automotive Engineering. Considering the influence of frame deformation on the simulation results, the frame is flexible. In addition, various experimental pavements are established by using the principle of sine superposition. A rigid-flexible coupling model including front suspension system, rear suspension system, steering system, flexible frame, cab, road surface, etc. The simulation results of the established model are compared with the experimental results, and the correctness of the established multi-body dynamics model is verified, which lays a foundation for the subsequent simulation analysis. Then, by using the rigid-flexible coupling model of the whole vehicle, the passage of the wide-body dump truck for off-road mining is analyzed. This paper analyzes the force and displacement of the front and rear suspension system under the working conditions of rubbing plate road, up and down slope and side slope respectively, and puts forward the corresponding suggestions for improving the load and displacement of the front and rear suspension system. Finally, based on the rigid-flexible coupling model of the whole vehicle, the operation stability and ride comfort of the off-road mine wide-body dump truck are analyzed with reference to the relevant national standards. It provides a basis for the design of wide-body dump truck for off-road mining.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD57

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