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汽车座椅头枕强度及吸能性仿真分析 被引量:2
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作者 叶芳 徐中明 翟喜成 《实验技术与管理》 CAS 北大核心 2019年第12期102-106,共5页
对汽车座椅头枕静强度特性和碰撞吸能性进行研究。首先采用Hypermes软件创建了某车座椅骨架及头枕的有限元模型。然后将座椅下压刚度试验结果和有限元计算结果对比,对模型进行了有效性验证。最后,根据GB11550对座椅头枕模型进行静强度... 对汽车座椅头枕静强度特性和碰撞吸能性进行研究。首先采用Hypermes软件创建了某车座椅骨架及头枕的有限元模型。然后将座椅下压刚度试验结果和有限元计算结果对比,对模型进行了有效性验证。最后,根据GB11550对座椅头枕模型进行静强度仿真分析和碰撞吸能性仿真分析。仿真结果表明,该头枕前部和后部具有较好的碰撞吸能性,但座椅骨架侧板应力最大值超过了材料的屈服极限。根据仿真结果提出了改进措施,为此类轿车座椅头枕的安全性设计提供方法案例。 展开更多
关键词 汽车座椅头枕 有限元法 静强度分析 碰撞吸能性 仿真实验
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Collapse behavior evaluation of hybrid thin-walled member by stacking condition 被引量:2
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作者 Kil-Sung LEE Hyeon-Kyeong SEO +3 位作者 Yong-June YANG Woo-Chae HWANG Kwang-Hee IM In-Young YANG 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第A01期135-140,共6页
The recent trend of vehicle design aims at crash safety and environmentally-friendly aspect. For the crash safety aspect, the energy absorbing members should absorb collision energy sufficiently but for the environmen... The recent trend of vehicle design aims at crash safety and environmentally-friendly aspect. For the crash safety aspect, the energy absorbing members should absorb collision energy sufficiently but for the environmentally-friendly aspect, the vehicle structure must be light weight in order to improve the fuel efficiency and reduce the tail gas emission. Therefore, the light weight of vehicle must be achieved in a securing safety status of crash. An aluminum or carbon fiber reinforced plastics (CFRP) is representative one of the light-weight materials. Based on the respective collapse behavior of aluminum and CFRP member, the collapse behavior of hybrid thin-walled member was evaluated. The hybrid members were manufactured by wrapping CFRP prepreg sheets outside the aluminum hollow members in the autoclave. Because the CFRP is an anisotropic material whose mechanical properties, such as strength and elasticity, change with its stacking condition, the effects of the stacking condition on the collapse behavior evaluation of the hybrid thin-walled member were tested. The collapse mode and energy absorption capability of the hybrid thin-walled member were analyzed with the change of the fiber orientation angle and interface number. 展开更多
关键词 collapse behavior aluminum and CFRP hybrid thin-walled member stacking condition
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