Cars design and analysis of composite rear seat back panel for passenger cars

doi:10.19936/j.cnki.2096-8000.20250928.014

Abstract

Abstract: In order to reduce the weight of car seat back panels, glass fiber composite materials are used instead of metal materials, and the lightweight effect is verified through simulation and trial production testing. Establish models of metal and glass fiber composite back panel, collision simulation analysis is conducted according to GB 15083—2019 standard, and the results meet the requirements. The glass fiber composite back panel was producted by using integrated injection molding process, weighing 5.04 kg, which achieved a weight reduction of 31.05% compared to metal (iron) back panel weighing 7.31 kg. Through the swing arm collision test, the maximum relative error between the measured deformation and simulated deformation of the glass fiber composite back panel was 3.2%, and the simulation results were reliable. After the collision, the glass fiber composite back panel did not fail and remained in its original locking position, meeting the requirements of the standard luggage impact test. The glass fiber composite back panel achieved the expected lightweight effect.

Key words: seat back panel, compositse, glass fibre, integrated injection molding

CLC Number:

TB332

GUANG Yubo, REN Mingwei, QIU Rui, CAO Qinglin, WANG Yong, WANG Xinyu. Cars design and analysis of composite rear seat back panel for passenger cars[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(9): 110-116.

References

[1] 宋传江, 王虎. 玻璃纤维增强复合材料工程化应用进展[J]. 中国塑料, 2015, 29(3): 9-15.
[2] 秦小山, 冯静, 王仁舒, 等. 纤维增强环氧树脂复合材料性能研究进展[J]. 山东化工, 2019, 48(5): 44-45.
[3] 陈崇山. 轻量化技术在商用车车身开发中的应用[J]. 装备制造技术, 2015(9): 151-154.
[4] SELVAMUTHUKUMAR M, BOBBA S, PADMANABHAN S, et al. Analysis of glass and carbon fiber reinforced aluminum sandwiched composites in automotive applications[J]. Journal of The Institution of Engineers (India): Series D, 2023, 105(2): 725-731.
[5] 刘宇, 赵民, 王宇, 等. 行李箱冲击某汽车后排座椅的仿真分析与优化[J]. 机械设计与制造, 2020(8): 259-262.
[6] 高云凯, 林典, 余海燕, 等. 镁合金在座椅骨架轻量化设计中的应用[J]. 同济大学学报(自然科学版), 2009, 37(7): 938-942.
[7] GAO Y K, GAO D W, GAO Y H. A study on magnesium alloy substitution design and analysis for automotive seat back frame[J]. Advanced Materials Research, 2010, 156-157: 245-251.
[8] 兰祥, 赵晓昱, 张鑫, 等. 碳纤维复合材料汽车后排座椅优化设计[J]. 上海工程技术大学学报, 2019, 33(4): 323-329.
[9] 张君媛, 徐婷婷, 张秋实, 等. 长纤维复合材料乘用车后排座椅骨架轻量化设计[J]. 汽车技术, 2015(8): 10-13.
[10] 潘星辰, 郜红合, 陈旭辉, 等. 乘用车座椅材料加工工艺与结构设计[J]. 材料导报, 2023, 37(22): 174-180.
[11] 廖耀青. 碳纤维复合材料汽车座椅靠背骨架结构设计与仿真[D]. 温州: 温州大学, 2021.
[12] 汪庆洋. 纤维增强复合材料乘用车后排座椅骨架轻量化设计研究[D]. 长春: 吉林大学, 2014.
[13] 闫娜, 张红曼, 芦海旭, 等. GB 15083—2019国家标准及认证实施要求解读[J]. 机械工业标准化与质量, 2021(2): 20-25.
[14] YAO Q L, WEI Z, JIANG Q L, et al. Ply optimization of backrest skeleton of carbon fiber reinforced plastic car seat based on grey euclidean relational analysis method[J]. International Journal of Automotive Technology, 2023, 24(4): 1189-1203.
[15] BAI Y, DING X H. Optimization design of composite automotive seat frame based on topology optimization[J]. Journal of the University of Shanghai for Science and Technology, 2017, 39(1): 75-80.
[16] LEE J K, CHOI H J, SEON W S. Application of carbon fiber reinforced plastic to automotive seat frames[J]. Applied Mechanics and Materials, 2014, 680: 566-569.
[17] KIM K Y, KWAK S H, HAN G D. Formability evaluation of the vacuum resin transfer molding of a CFRP composite automobile seat cross part[J]. Journal of the Korean Society of Manufacturing Process Engineers, 2017, 16(3): 24-29.
[18] BING D, ZHENG G L, HUI M B, et al. Mechanical property of long glass fiber reinforced polypropylene composite: from material to car seat frame and bumper beam[J]. Polymers, 2022, 14(9): 1814.
[19] 战楠, 吴迪,卜晓兵, 等. 汽车后排座椅行李箱冲击的仿真分析及结构优化[J]. 汽车零部件, 2019(6): 5-8.
[20] 胡溧, 陈顺, 杨啟梁, 等. 某乘用车后排座椅静强度及碰撞仿真分析[J]. 机械设计与制造, 2022(4): 110-113, 117.