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Polypropylene Composite Material for Light Weight Fuel Tank Protection Shield
参考中译:轻型油箱防护罩用聚丙烯复合材料


          

刊名：SAE International Journal of Advances and Current Practices in Mobility
作者：Karthik Govindaraj（Mahindra & Mahindra, Ltd）
V Jayashankar（Mahindra & Mahindra, Ltd）
Karthiban C（Mahindra & Mahindra, Ltd）
刊号：870B0001-99/I
ISSN：2641-9637
出版年：2023
年卷期：2023, vol.5, no.2
页码：657-661
总页数：5
分类号：U
语种：eng
文摘：The fuel tank shield provides a protective boundary between the fuel tank and vehicle driveline in the event of a high-speed crash. Hence, it is important from the safety standpoint. The part must be carefully engineered to meet the challenging requirements in terms of stiffness, deflection, toughness, dimensional stability and thermal stability. In this paper, long glass fibre filled polypropylene material compound was selected and developed to meet the mentioned requirements for this part with significant mass reduction over other materials. The combination of material, optimized part and tool design led to weight savings and considerable cost reduction. This is a ready to mold material used in injection molding process. This long glass fibre reinforced polypropylene compound has been explored for thin wall protection shield with wall thickness of 2.5 mm. This part has critical functional requirements such as driveline load versus deflection durability criteria, thermal stability, dimensional stability to overcome fouling and rattling with respect to interface parts, torque retention in mounting zones, gap and flush aspects. Structural durability of the design was validated by virtual engineering. Part design and material combinations with better tooling design iterations were analyzed by using mold flow analysis. Complete product performance was validated for predefined key test metrics such as structural durability, thermal aging, natural frequency, impact and torque retention. This part met the requirements. The combination of material, optimized part and tool design led to weight savings, balanced stiffness and toughness behavior, dimensional stability, and considerable cost reduction.
参考中译：在发生高速碰撞时，油箱防护罩在油箱和车辆传动系之间提供了保护边界。因此，从安全的角度来看，这一点很重要。零件必须经过精心设计，以满足在硬度、挠度、韧性、尺寸稳定性和热稳定性方面具有挑战性的要求。本文选择和开发了长玻璃纤维填充聚丙烯材料复合材料，以满足该零件的上述要求，并显著减轻了其他材料的质量。材料、优化的零件和工具设计相结合，从而节省了重量并显著降低了成本。这是一种用于注塑成型过程的现成模具材料。这种长玻璃纤维增强聚丙烯复合材料已被探索用于壁厚为2.5 mm的薄壁防护。该部件具有关键的功能要求，例如传动系负载与挠度的耐久性标准、热稳定性、尺寸稳定性以克服接口部件的污垢和卡壳、安装区域中的扭矩保持、间隙和平齐方面。通过虚拟工程对设计的结构耐久性进行了验证。通过模具流动分析，对模具设计迭代次数较好的零件设计和材料组合进行了分析。完整的产品性能根据预定义的关键测试指标进行了验证，例如结构耐久性、热老化、固有频率、冲击和扭矩保持。这部分符合要求。材料、优化的零件和工具设计相结合，节省了重量，平衡了刚性和韧性行为，尺寸稳定，并显著降低了成本。



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