基于Carsim仿真軟件的公路線形安全評(píng)價(jià)方法研究
發(fā)布時(shí)間:2018-04-06 05:06
本文選題:低等級(jí)公路 切入點(diǎn):汽車動(dòng)力學(xué)仿真 出處:《長(zhǎng)安大學(xué)》2014年碩士論文
【摘要】:低等級(jí)公路的交通安全一直備受關(guān)注,交通事故占事故總量的比例較大,F(xiàn)行的道路安全評(píng)價(jià)方法如運(yùn)行速度法和事故率法均存在諸多問(wèn)題。利用汽車動(dòng)力學(xué)仿真軟件進(jìn)行道路安全評(píng)價(jià)能夠彌補(bǔ)以上方法的一些不足,對(duì)提高道路安全具有重要的現(xiàn)實(shí)意義和社會(huì)效益。 本文的主要研究對(duì)象定位在低等級(jí)公路,,通過(guò)計(jì)算機(jī)仿真手段,獲取小汽車在仿真道路上的仿真運(yùn)行參數(shù),從而篩選與交通安全有關(guān)的指標(biāo),進(jìn)行安全評(píng)價(jià)。主要研究?jī)?nèi)容包括:基于汽車動(dòng)力學(xué)仿真軟件Carsim,設(shè)置了車體、懸掛系統(tǒng)、轉(zhuǎn)向系統(tǒng)、制動(dòng)系統(tǒng)參數(shù)等,建立典型車輛仿真模型。基于公路線形設(shè)計(jì)數(shù)據(jù),建立了公路仿真模型。合理確定了駕駛員操縱模式,建立了駕駛員仿真模型。篩選了低等級(jí)公路交通安全仿真評(píng)價(jià)指標(biāo),確定評(píng)價(jià)標(biāo)準(zhǔn),結(jié)合具體工程實(shí)踐,進(jìn)行了安全評(píng)價(jià),提出改善措施。 論文的研究成果表明,本文提出的研究方法及評(píng)價(jià)指標(biāo)可以用于低等級(jí)公路安全評(píng)價(jià)中,對(duì)于低等級(jí)公路交通安全改善具有實(shí)用價(jià)值。
[Abstract]:Low-grade highway traffic safety has been concerned, traffic accidents account for a large proportion of the total number of accidents.There are many problems in the current evaluation methods of road safety, such as speed method and accident rate method.The application of vehicle dynamics simulation software to road safety evaluation can make up for some shortcomings of the above methods and has important practical and social benefits to improve road safety.The main research object of this paper is located in the low-grade highway. By computer simulation, the simulation parameters of the car on the simulated road are obtained, and the indexes related to the traffic safety are selected for safety evaluation.The main research contents are as follows: based on Carsim-based vehicle dynamics simulation software, the vehicle body, suspension system, steering system and braking system parameters are set up, and the typical vehicle simulation model is established.Based on the design data of highway alignment, a highway simulation model is established.The driver control mode is reasonably determined and the driver simulation model is established.The evaluation index of traffic safety of low grade highway is screened, the evaluation standard is determined, and the safety evaluation is carried out in combination with the concrete engineering practice, and the improvement measures are put forward.The research results show that the research method and evaluation index proposed in this paper can be used in the evaluation of low-grade highway safety and have practical value for the improvement of low-grade highway traffic safety.
【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】:2014
【分類號(hào)】:U412.3;U492.8
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