本文關(guān)鍵詞： 正面碰撞 副駕駛位置 乘員側(cè)約束系統(tǒng) MADYMO C-NCAP　出處：《遼寧工業(yè)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著中國經(jīng)濟的迅速發(fā)展，汽車的保有量在不斷增加，加之新車型的車速也在逐漸的提高，道路交通安全問題仍然非常嚴峻。在中國，因為車輛都是左開右行，副駕駛位置在右邊，如果車輛相撞，駕駛員大多數(shù)都會下意識地將方向盤右打來讓自己避開危險，這樣造成的最后結(jié)果就是把副駕駛座的位置向右撞，副駕駛座位的乘員被暴露在最危險的環(huán)境中，因而，研究正面碰撞乘員側(cè)約束系統(tǒng)特性對避免汽車在發(fā)生碰撞過程中的安全隱患，，提高乘員在汽車發(fā)生碰撞過程中的安全指數(shù)是十分有效的。 本論文將研究某車乘員側(cè)約束系統(tǒng)的仿真及參數(shù)優(yōu)化，通過對汽車在正面碰撞中被動安全性的研究意義和研究方法的了解，建立該車型的部分仿真模型（包括乘員約束系統(tǒng)），并根據(jù)ECE R94、FMVSS214、新車評價程序（NCAP）等與汽車正面碰撞相關(guān)的法規(guī)和汽車碰撞仿真的基本理論，再結(jié)合MADYMO仿真軟件，對建立的包括汽車約束系統(tǒng)的模型進行仿真分析。 首先，由試驗中的實車數(shù)據(jù)模型建立一個有效的乘員側(cè)約束系統(tǒng)模型，模型包括車身、假人、安全帶及安全氣囊系統(tǒng)等，并根據(jù)實際情況建立他們之間的接觸，在本文中還將有限元理論與多剛體動力學(xué)有機結(jié)合起來，在MADYMO軟件中得到充分的體現(xiàn)。其次，針對某實車正面碰撞試驗中得出的實驗數(shù)據(jù)與C-NCAP評價指標對比，結(jié)合MADYMO軟件建立結(jié)構(gòu)模型，根據(jù)碰撞后的結(jié)果與實車數(shù)據(jù)進行對比，驗證了模型的有效性。最后，分析仿真結(jié)果中的不足，確定優(yōu)化方向并制定幾種改進方案，對模型進行修改與完善，通過仿真結(jié)果對比以上幾種優(yōu)化方案，并根據(jù)C-NCAP評價標準確定最優(yōu)方案，從而提高乘員約束系統(tǒng)的性能，實現(xiàn)對車輛內(nèi)乘員側(cè)安全性能研究的最終目的。
[Abstract]:With the rapid development of China's economy, the number of cars is increasing, and the speed of new models is also gradually increasing, road traffic safety problems are still very serious. In China, because the vehicles are left and right. The copilot is on the right, and if a car collides, most drivers subconsciously push the steering wheel to the right to avoid danger, resulting in the final result of hitting the copilot position to the right. The occupants of the copilot seat are exposed to the most dangerous environment, so the study of the characteristics of the passenger side restraint system in frontal impact can avoid the hidden danger of the vehicle during the collision. It is very effective to improve the safety index of the occupants in the process of vehicle collision. This paper will study the simulation and parameter optimization of the passenger side restraint system of a vehicle, through the research significance and research method of the passive safety of the vehicle in the frontal impact. Part of the simulation model of the vehicle is established (including the passenger constraint system), and based on the ECE R94N FMVSS214. The new car evaluation program (NCAP) and other laws and regulations related to vehicle frontal impact and the basic theory of vehicle collision simulation are combined with MADYMO simulation software. The model including automobile constraint system is simulated and analyzed. First of all, an effective passenger side restraint system model is established from the real vehicle data model. The model includes body, dummy, seat belt and airbag system. According to the actual situation, the contact between them is established. In this paper, the finite element theory and multi-rigid body dynamics are combined organically, which is fully reflected in MADYMO software. Secondly. In view of the comparison between the experimental data and C-NCAP evaluation index obtained from the frontal impact test of a real vehicle, the structural model is established with the MADYMO software, and the results are compared with the real vehicle data according to the results after the collision. Finally, the shortcomings of the simulation results are analyzed, the optimization direction is determined and several improvement schemes are worked out, the model is modified and improved, and the above optimization schemes are compared with the simulation results. According to C-NCAP evaluation criteria, the optimal scheme is determined, so as to improve the performance of the passenger restraint system and achieve the ultimate purpose of the study on the safety performance of the occupant side of the vehicle.
【學(xué)位授予單位】：遼寧工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U467.14;U491.61

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