Integrated Lightweight Design of Passenger Car’ s Hatchback

来源 :第19届亚太汽车工程年会暨2017中国汽车工程学会年会 | 被引量 : 0次 | 上传用户:qjinglihong
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  In the development process of a Chinese brand SUV, three -dimensional design and finite element analysis technology are used to analyze the static stiffness, bending, twisting and modal performance of the hatchback assembly in the body development stage. In the premise of ensuring the hatchbacks modes, stiffness and other performances. According to the characteristics of the door assembly, the lightweight design of the hatchback is developed combined with structural optimization and material optimization. Use finite element analysis technology to verify the stiffness, modes and other structural performances of the hatchback after lightweight. The ration- ality and feasibility of the lightweight solution are verified by carrying out the test of actual vehicle modes and torsional rigidity. The re- sults meet the requirements and the weight of hatchback is reduced by 6. 7%.
其他文献
本文从传统点火开关车辆与PEPS车辆两者在结构、电气原理上的差异性着手分析,重点介绍PEPS车辆启动可靠性设计的几个要点,包括整车布置、启动电路设计、堵转保护、超时机制等,并通过概率计算,启动系统安全性得到显著提高,启动故障的典型情形得到控制.本文探讨的内容,对PEPS车型启动回路设计开发具有一定的借鉴意义.
Gear modification is the mostly adopted solution for the transmission whine. Because of the complexity, the suitable ap- proach could be obtained through trial and error, which cost long time and many
The UNECE World Forum for Harmonization of Vehicle Regulation confirmed the external noise limit values of UN Reg- ulation No. 51-03 for noise emitted by accelerating motor vehicles in 2015, and put i
In order to improve the acoustic characteristics of the cab, acoustic-structure coupled model of the cab was estab- lished. Through the analysis of the acoustic response to actual stimulus, the acoust
This article aimed at the optimization and simulation analysis of a four cylinder commercial vehicle powertrain mount sys- tem, researching the effect of powertrain mount system layout to the full veh
In this paper, the authors use three kinds of solutions to reduce the aerodynamic noise which appears in the process of accelerating the turbo engine. The test results show that its the best way to us
本文基于Optistruct复合材料优化设计技术,针对新能源汽车电池箱高强度、高刚度、轻量化的设计需求,采用等代设计的方法,提出了多工况整体优化设计的思路.通过自由尺寸优化、尺寸优化、铺层次序优化对某款电动汽车电池箱进行优化设计,最终通过有限元数值模拟分别对其在颠簸紧急制动、颠簸急转弯、正面碰撞、侧面碰撞中电池箱的刚度、强度进行分析,结果表明,优化后电池箱体的刚度、强度均有大幅提高,其中正面碰撞变
In this paper, mechanicalproperties of TWIP950 which is a typical second generation of AHSS have been studied, in- cluding uniaxial tension strength, n-value, r-value and bake hardenability. Frontal i
对某款车型后副车架结构进行5个典型极限工况的多体动力学分析,获得了各硬点载荷数据作为结构优化载荷边界条件.进行了强度,刚度和自由模态分析,得到动静态性能指标.进行了试验设计,获取了样本点数据构造响应面近似模型,应用NSGA-II算法,计算近似模型得到优化的板厚尺寸组合,最后优化方案减重5.6%.对板厚优化方案验证了强度,自由模态和疲劳耐久性分析.分析结果表明,优化的后副车架结构完全满足动静态性能要
Takinglight-weighting and cost-effectiveness into consideration, thin-walled hybrid tubes which are composed of carbon fiber reinforced plastic(CFRP)tube and metallic tube will be more widely used. Un