【摘要】：工程車輛的駕駛室設(shè)計(jì)要綜合考慮車輛和駕駛室的總體布置、造型設(shè)計(jì)、結(jié)構(gòu)性能要求和人機(jī)工程學(xué)等。用于保證司機(jī)駕乘安全的駕駛室安全結(jié)構(gòu)是駕駛室的重要組成單元,它主要包括翻車保護(hù)結(jié)構(gòu)和落物保護(hù)結(jié)構(gòu)兩部分。研究如何快速設(shè)計(jì)出滿足安全性能的駕駛室安全結(jié)構(gòu)具有重要的意義。本文以系列單鋼輪振動(dòng)壓路機(jī)駕駛室安全結(jié)構(gòu)設(shè)計(jì)為研究對(duì)象,基于快速響應(yīng)設(shè)計(jì)理論,進(jìn)行了駕駛室產(chǎn)品族規(guī)劃、駕駛室模塊劃分及接口設(shè)計(jì),并建立了駕駛室模塊化配置矩陣;定義了影響FOPSROPS性能的參數(shù)化變量,并對(duì)駕駛室安全結(jié)構(gòu)模塊基于FOPSROPS參數(shù)化構(gòu)件進(jìn)行了模塊劃分。利用CATIA和HyperMesh分別建立28T壓路機(jī)駕駛室安全結(jié)構(gòu)幾何及有限元分析模型,以非線性動(dòng)力學(xué)控制方程及其顯式中心差分算法等為基礎(chǔ)理論,用Radioss求解器進(jìn)行顯式非線性求解,側(cè)向初步加載后得到結(jié)構(gòu)的變形模式及應(yīng)力分布情況,分析結(jié)論為初始結(jié)構(gòu)局部薄弱,設(shè)計(jì)加強(qiáng)模塊來(lái)提升結(jié)構(gòu)的整體強(qiáng)度和剛度。對(duì)改進(jìn)后的ROPS分別進(jìn)行側(cè)向、垂向、縱向的加載,結(jié)論為ROPS的承載和能量吸收能力滿足標(biāo)準(zhǔn)要求。對(duì)FOPS落錘沖擊進(jìn)行了仿真模擬,得到了落錘沖擊中心的位移曲線和頂板的應(yīng)力應(yīng)變分布,改變頂板的厚度參數(shù),使得FOPS的抗沖擊性能滿足標(biāo)準(zhǔn)要求。將駕駛室安全結(jié)構(gòu)制作成物理樣機(jī),對(duì)FOPSROPS性能進(jìn)行實(shí)驗(yàn)驗(yàn)室評(píng)價(jià),各項(xiàng)性能均達(dá)標(biāo),并取得FOPSROPS認(rèn)證。對(duì)比仿真分析和試驗(yàn)數(shù)據(jù),對(duì)仿真模型進(jìn)行評(píng)價(jià)并分析誤差產(chǎn)生的原因。本文進(jìn)行了駕駛室安全結(jié)構(gòu)的設(shè)計(jì)、性能仿真、改進(jìn)及實(shí)驗(yàn)室試驗(yàn),形成了系列化的壓路機(jī)駕駛室安全結(jié)構(gòu)的設(shè)計(jì)思路與方法。
[Abstract]:The cab design of engineering vehicle should take into account the overall layout, modeling design, structural performance requirements and ergonomics of the vehicle and cab. The cab safety structure which is used to ensure the driver's driving safety is an important component unit of the cab. It mainly includes two parts: the overturning protection structure and the falling object protection structure. It is of great significance to study how to quickly design the cab safety structure to meet the safety performance. In this paper, the design of cab safety structure of a series of single steel wheel vibratory roller is studied. Based on the theory of rapid response design, the cab product family planning, cab module partition and interface design are carried out. The modularized configuration matrix of cab is established. The parameterized variables that affect the performance of FOPSROPS are defined, and the cab safety structure module is divided based on FOPSROPS parameterized components. The safe structure geometry and finite element analysis models of the cab of 28T roller are established by using CATIA and HyperMesh, respectively. Based on the nonlinear dynamic control equation and explicit central difference algorithm, the explicit nonlinear solution is carried out by Radioss solver. The deformation mode and stress distribution of the structure are obtained after initial lateral loading. It is concluded that the initial structure is local weak and a strengthening module is designed to enhance the overall strength and stiffness of the structure. The lateral, vertical and longitudinal loading of the improved ROPS is carried out respectively. It is concluded that the loading capacity and energy absorption capacity of ROPS meet the requirements of the standard. The displacement curve of the impact center and the stress and strain distribution of the roof are obtained by simulating the impact of FOPS, and the thickness parameters of the roof are changed to make the impact resistance of FOPS meet the requirements of the standard. The safety structure of the cab is made into a physical prototype, and the performance of FOPSROPS is evaluated in laboratory. All the performances are up to standard, and the FOPSROPS certification is obtained. Compare the simulation data with the experimental data, evaluate the simulation model and analyze the cause of the error. In this paper, the design, performance simulation, improvement and laboratory test of the cab safety structure are carried out, and the design ideas and methods of the serial roller cab safety structure are formed.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：U415.521

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