共查询到20条相似文献,搜索用时 234 毫秒
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荣获欧洲年度车桂冠的梅甘娜(Megane),又推出了世界上首次采用的电动收卷式玻璃车顶的活动车顶双门4座蓬式轿车。其外部造型仍然保留了基型车所特有的设计风格,但是呈双门跑车结构,展现出雷诺车系拥有的流畅绚丽的造型风格。电动收卷式玻璃车顶给乘坐车厢提供了明亮的室内空间, 相似文献
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为准确评估汽车碰撞等非线性问题中设计参数的敏感度,提出了基于响应面和Sobol法的全局灵敏度分析策略.以某款轿车车顶压溃为例,以车身上部零件为研究对象,应用多项式响应面建立设计变量与车顶强度的近似模型并开展灵敏度分析,甄别对车顶强度影响较大的关键变量. 相似文献
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综合考虑车顶强度和侧面碰撞的安全性能,对某轿车的B柱结构进行优化设计。基于顶压和侧碰的简化模型对B柱内板分成上下两部分进行焊接,将其高强度钢选型和厚度作为离散设计变量,同时对材料成本、车顶最大承载作用力、B柱侵入速度和侵入量进行约束,建立B柱结构优化的数学模型。采用移动最小二乘法构造近似模型,结合遗传算法对B柱拼焊板结构进行优化设计。结果表明:在优化计算效率大大提高的同时,材料成本降低了8. 0%,B柱结构总质量降低了19. 3%,B柱侵入速度、侵入量分别减小了5. 6%和3. 5%,车顶承载能力提高了17. 3%,有效提高了车顶强度和侧面碰撞的安全性能。 相似文献
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人机工程学在轿车车身安全性设计中的应用 总被引:2,自引:0,他引:2
从车身的主动与被动安全两个方面,分别概述了人机工程学在轿车车身结构、车灯、方向盘、座椅、视野和制动稳定性等方面的应用现状,总结了提高汽车正面、侧面、后面碰撞保护能力以及车顶耐撞强度的一些方法,介绍了世界各大著名汽车公司的最新相关产品。最后,预测了应用人机工程学原理设计安全车身结构的发展趋势。 相似文献
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轿车覆盖件包括车顶、左/右侧围和四门两盖这几个零件。轿车车身覆盖件生产线设计是根据产品特点和生产规模,采用各自不同的冲压模具、冲压设备、作业机器人、在线测量和自动输送线整合而成。以轿车覆盖件中比较复杂的主要零件车顶为例。介绍了轿车车身覆盖件的冲压生产线组织。 相似文献
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在德国大众汽车公司高尔夫轿车用柴油机进行试验分析、测绘和试制样机的基础上,对高尔人柴油机从整机布置、燃烧室、主要结构参数、配气机构、活塞-连杆-曲杆系统和燃油喷射装置等方面进行了结构分析,认为其性能,结构强度和可靠性均达到先进水平,为车用柴油机的小型化,轻量化和高速化找出了一条新的道路。是较理想的经济型轿车用机。可供我国开发经济型轿车用柴油机作借鉴。 相似文献
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H. -S. Yoon K. -T. Lee S. -H. Ahn 《International Journal of Automotive Technology》2013,14(4):667-674
A vehicle rollover is a critical accident that could have many causes. This paper describes a novel vision-based system for measuring vehicle roof deformation due to a rollover accident. A vision-based measurement system offers an overall view of structural deformation simply at low cost. Our measurement system was constructed using a Kinect camera from Microsoft, a battery, and a remote-controlled recording computer. Color images and distance maps can be obtained using two sensors embedded in the Kinect along with customized software, and the distance from the camera lens to a specific object can be calculated with a simple equation. To test our proposed approach, actual vehicle rollover experiments were conducted and the resulting roof deformations were compared to those indicated by our system. Moreover, cross-sectional image of Apillar was analyzed to calculate bending moment of inertia. From the research results, it was able to show that deformation errors were within 13 mm, and roof deformation was correlated with vehicle type, or vehicle curb weight. 相似文献
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上海地区降雨量大,种植屋面结构荷载大,屋面雨水无法迅速排走,严重影响植物的正常生长.如果存在渗漏等情况,会给经营者带来经济损失,严重者还会因为负荷增加导致结构坍塌,从而造成重大人身和财产损失.通过从设计、材料选择、施工节点等方面介绍种植屋面虹吸雨排系统的关键技术要点,保证虹吸雨排的施工质量和应用效果,为后续同类型项目提... 相似文献
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依照相关标准和法规,对某型校车车身顶部强度进行静态压溃、准静态压溃和整车跌落的仿真研究,系统评价校车车顶结构的抗压强度特性,并对关键承载结构进行改进。 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(3):169-181
The response simulation is studied and the handling safety is evaluated using finer integration method for driver-vehicle closed-loop system with stationary random road input. This algorithm is not only precise, but can also shorten the evaluation period of handling safety and reduce the tremendous cost for real vehicle testing. The response simulation and the vehicle handling safety evaluation are also studied for the closed-loop system with evolutionary random road input. The study can more truly simulate vehicle handling quality for including the varying of vehicle velocity with time. 相似文献
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Youqun Zhao Guiyu Zhang Konghui Guo 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2000,33(3):169-181
The response simulation is studied and the handling safety is evaluated using finer integration method for driver-vehicle closed-loop system with stationary random road input. This algorithm is not only precise, but can also shorten the evaluation period of handling safety and reduce the tremendous cost for real vehicle testing. The response simulation and the vehicle handling safety evaluation are also studied for the closed-loop system with evolutionary random road input. The study can more truly simulate vehicle handling quality for including the varying of vehicle velocity with time. 相似文献
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