汽车工程 ›› 2022, Vol. 44 ›› Issue (5): 778-788.doi: 10.19562/j.chinasae.qcgc.2022.05.016
所属专题: 车身设计&轻量化&安全专题2022年
收稿日期:
2021-11-10
修回日期:
2021-12-18
出版日期:
2022-05-25
发布日期:
2022-05-27
通讯作者:
陈轶嵩
E-mail:chenyisong_1988@163.com
基金资助:
Tong Wang1,Yiqun Du2,Yisong Chen1(),Rimei Han3
Received:
2021-11-10
Revised:
2021-12-18
Online:
2022-05-25
Published:
2022-05-27
Contact:
Yisong Chen
E-mail:chenyisong_1988@163.com
摘要:
为某12 m全承载混合动力城市客车建立车身有限元模型,通过强度、刚度、模态分析、结构轻量化和生命周期评价,分析车身结构优化对整车节能减排效果的影响。结果表明,与原车身骨架相比,结构优化后车身骨架质量减轻了52.5 kg,弯曲与极限扭转两种工况下均满足强度、刚度要求,且具有良好的固有振动特性。就全生命周期而言,轻量化后矿产资源消耗减少了0.4E04 kg Sb-eq.,化石能源消耗减少0.7E04 MJ,综合环境影响值减少0.42E11,减低率分别为3.81%、4.46%和4.56%。
王童,杜轶群,陈轶嵩,韩日美. 基于结构轻量化的城市客车车身生命周期评价[J]. 汽车工程, 2022, 44(5): 778-788.
Tong Wang,Yiqun Du,Yisong Chen,Rimei Han. Life Cycle Assessment of City Bus Body Based on Structural Lightweighting[J]. Automotive Engineering, 2022, 44(5): 778-788.
表14
轻量化前后客车全生命周期评价指标特征化结果"
类型 | 阶段 | ADP(e) | ADP(f) | GWP | AP | EP | POCP | ODP |
---|---|---|---|---|---|---|---|---|
轻量化前 | I | 2.41E-003 | 3.34E004 | 3.18E003 | 7.08 | 0.617 | 1.29 | 1.11E-005 |
II | 4.87E-004 | 6.30E004 | 5.40E003 | 18.10 | 1.49 | 1.77 | 8.26E-10 | |
III | 2.83E-004 | 8.16E004 | 1.78E003 | 8.59 | 0.635 | 0.935 | 2.68E-10 | |
IV | -2.13E-003 | -2.13E004 | -2.28E003 | -3.92 | -0.374 | -0.928 | -1.01E-005 | |
V | 1.05E-003 | 1.57E005 | 8.08E003 | 29.85 | 2.37 | 3.07 | 1.00E-006 | |
轻量化后 | I | 2.31E-003 | 3.20E004 | 3.04E003 | 6.78 | 0.591 | 1.23 | 1.06E-005 |
II | 4.66E-004 | 6.02E004 | 5.16E003 | 17.30 | 1.43 | 1.69 | 7.92E-010 | |
III | 2.71E-004 | 7.81E004 | 1.71E003 | 8.23 | 0.608 | 0.895 | 2.57E-010 | |
IV | -2.04E-003 | -2.04E004 | -2.19E003 | -3.75 | -0.358 | -0.889 | -9.64E-006 | |
V | 1.01E-003 | 1.50E005 | 7.72E003 | 28.56 | 2.27 | 2.93 | 9.61E-007 |
表15
轻量化前后客车全生命周期归一化和加权量"
类型 | 阶段 | GWP | AP | EP | POCP | ODP | 综合环境影响值 |
---|---|---|---|---|---|---|---|
轻量化前 | I | 2.09E-11 | 5.35E-12 | 3.47E-13 | 6.35E-12 | 1.34E-14 | 3.29E-11 |
II | 3.54E-11 | 1.37E-11 | 8.38E-13 | 8.71E-12 | 9.99E-19 | 5.87E-11 | |
III | 1.17E-11 | 6.50E-12 | 3.57E-13 | 4.60E-12 | 3.34E-19 | 2.32E-11 | |
IV | -1.49E-11 | -2.96E-12 | -2.11E-13 | -4.56E-12 | -1.22E-14 | -2.26E-11 | |
V | 5.31E-11 | 2.26E-11 | 1.33E-12 | 1.51E-11 | 1.20E-15 | 9.22E-11 | |
轻量化后 | I | 2.00E-11 | 5.13E-12 | 3.23E-13 | 6.05E-12 | 1.28E-14 | 3.15E-11 |
II | 3.39E-11 | 1.31E-11 | 8.04E-13 | 8.31E-12 | 9.58E-19 | 5.61E-11 | |
III | 1.12E-11 | 6.22E-12 | 3.42E-13 | 4.40E-12 | 3.11E-19 | 2.22E-11 | |
IV | -1.44E-11 | -2.84E-12 | -2.01E-13 | -4.37E-12 | -1.11E-14 | -2.18E-11 | |
V | 5.07E-11 | 2.16E-11 | 1.27E-12 | 1.44E-11 | 1.10E-15 | 8.80E-11 |
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