轴向变厚度星形管吸能特征及多目标优化研究

PDF(3470 KB)

振动与冲击 ›› 2022, Vol. 41 ›› Issue (8) : 287-296.

论文

邓小林1，黄家乐2，3

作者信息 +

A study on energy absorption characteristics and multi-objective optimization of an axial variable thickness star-shaped tube

DENG Xiaolin1, HUANG Jiale2, 3

Author information +

文章历史 +

摘要

提出了一种新型的轴向变厚度星形管，采用Abaqus/Explicit对该结构有限元建模，并验证了模型的精度。系统研究了该结构在轴向冲击下的变形模式、力-位移和能量吸收等耐撞性能并分析了其关键耐撞性指标，开展了不同角数星形管在保持相同质量下的耐撞性能研究，采用多目标优化方法开展了星形管的优化研究。结果表明，所提出的轴向变厚度星形管相比常规的等壁厚星形管在降低初始峰值载荷和提升结构冲击载荷效率方面具有很大优势，多目标优化得到的最优设计相比原始设计的耐撞性能得到了有效改善，比能量吸收最大提升了6.02%，初始峰值载荷最高减少了39.56%。该研究能为轴向变厚度吸能结构设计提供参考。

Abstract

A new type of axially variable thickness star-shaped tube is proposed. Abaqus/Explicit is used to construct the finite element model of the structure, and the accuracy of the finite element model is verified. The structure’s crashworthiness such as deformation mode, force-displacement and energy absorption under axial impact was systematically studied, and its key crashworthiness indexes were analyzed. The crashworthiness of star-shaped tubes with different corners under the same mass is studied. The optimization study of the star-shaped tube was carried out. The results show that the proposed axial variable thickness star-shaped tube has great advantages in reducing the initial peak force and improving the crush force efficiency compared with the star-shaped tube of constant wall thickness. Compared with the original design, the optimal design obtained by multi-objective optimization has effectively improved the crashworthiness, the specific energy absorption is increased by 6.02%, and the initial peak force is reduced by 39.56%. This research can provide reference for the design of axially variable thickness energy absorbing structure.

导出引用

邓小林1，黄家乐2，3. 轴向变厚度星形管吸能特征及多目标优化研究[J]. 振动与冲击, 2022, 41(8): 287-296

DENG Xiaolin1, HUANG Jiale2, 3. A study on energy absorption characteristics and multi-objective optimization of an axial variable thickness star-shaped tube[J]. Journal of Vibration and Shock, 2022, 41(8): 287-296

参考文献

[1] XU F X, ZHANG X, ZHANG H. A review on functionally graded structures and materials for energy absorption [J]. Engineering Structures, 2018, 171: 309-325.
[2] NIKBAKHT S, KAMARIAN S, SHAKERI M. A review on optimization of composite structures Part II: Functionally graded materials [J]. Composite Structures, 2019, 214: 83-102.
[3] YAO S G, XING Y, ZHAO K. Crashworthiness analysis and multiobjective optimization for circular tubes with functionally graded thickness under multiple loading angles [J]. Advances in Mechanical Engineering, 2017, 9(4): 1-11.
[4] MOHAMMADIHA O, GHARIBLU H. Optimal shape design of functionally graded thickness inversion tubes subjected to oblique loading [J]. Structural and Multidisciplinary Optimization, 2017, 56(3): 587-601.
[5] SUN G Y, XU F X, LI G Y, et al. Crashing analysis and multiobjective optimization for thin-walled structures with functionally graded thickness [J]. International Journal of Impact Engineering, 2014, 64: 62-74.
[6] LI G Y, XU F X, SUN G Y, et al. Crashworthiness study on functionally graded thin-walled structures [J]. International Journal of Crashworthiness, 2015, 20(3): 280-300.
[7] LI G Y, XU F X, SUN G Y, et al. A comparative study on thin-walled structures with functionally graded thickness (FGT) and tapered tubes withstanding oblique impact loading [J]. International Journal of Impact Engineering, 2015, 77: 68-83.
[8] BAYKASOGLU C, BAYKASOGLU A, CETIN M T. A comparative study on crashworthiness of thin-walled tubes with functionally graded thickness under oblique impact loadings [J]. International Journal of Crashworthiness, 2019, 24(4): 453-471.
[9] PANG T, ZHENG G, FANG J G, et al. Energy absorption mechanism of axially-varying thickness (AVT) multicell thin-walled structures under out-of-plane loading [J]. Engineering Structures, 2019, 196: 1-17.
[10] CHEN Y F, BAI Z H, ZHANG L W, et al. Crashworthiness analysis of octagonal multi-cell tube with functionally graded thickness under multiple loading angles [J]. Thin-Walled Structures, 2017, 110: 133-139.
[11] ZHANG X, WEN Z Z, ZHANG H. Axial crushing and optimal design of square tubes with graded thickness [J]. Thin-Walled Structures, 2014, 84: 263-274.
[12] FANG J G, GAO Y K, SUN G Y, et al. Dynamic crashing behavior of new extrudable multi-cell tubes with a functionally graded thickness [J]. International Journal of Mechanical Sciences, 2015, 103: 63-73.
[13] QIN R X, ZHOU J X, CHEN B Z. Crashworthiness design and multiobjective optimization for hexagon honeycomb structure with functionally graded thickness [J]. Advances in Materials Science and Engineering, 2019, 2019: 1-13.
[14] SUN G Y, TIAN X Y, FANG J G, et al. Dynamical bending analysis and optimization design for functionally graded thickness (FGT) tube. International Journal of Impact Engineering. 2015, 78: 128-137.
[15] WIERZBICKI T, ABRAMOWICZ W. On the crushing mechanics of thin-walled structures [J]. Journal of Applied Mechanics, 1983, 50: 727-734.
[16] YAMASHITA M, GOTOH M, SAWAIRI Y. Axial crush of hollow cylindrical structures with various polygonal cross-sections [J]. Journal of Materials Processing Technology, 2003, 140: 59-64.
[17] TANG Z, LIU S T, ZHANG Z H. Energy absorption properties of non-convex multi-corner thin-walled columns [J]. Thin-Walled Structures, 2012, 51: 112-120.
[18] FAN Z, LU G X, LIU K. Quasi-static axial compression of thin-walled tubes with different cross-sectional shapes [J]. Engineering Structures, 2013, 55: 80-89.
[19] LIU W Y, LIN Z Q, WANG N N, et al. Dynamic performances of thin-walled tubes with star-shaped cross section under axial impact [J]. Thin-Walled Structures, 2016, 100: 25-37.
[20] DENG X L, LIU W Y, LIN Z Q. Experimental and theoretical study on crashworthiness of star-shaped tubes under axial compression [J]. Thin-Walled Structures, 2018, 130: 321-331.
[21] WU S Y, SUN G Y, WU X, et al. Crashworthiness analysis and optimization of fourier varying section tubes [J]. International Journal of Non-Linear Mechanics, 2017, 92: 41-58.
[22] NIA A A, CHAHARDOLI S. Mechanical behavior of nested multi-tubular structures under quasi-static axial load [J]. Thin-Walled Structures, 2016, 106: 376-389.
[23] FANG J G, GAO Y K, SUN G Y, et al. Parametric analysis and multiobjective optimization for functionally graded foam-filled thin-wall tube under lateral impact [J]. Computational Materials Science, 2014, 90: 265-275.
[24] ZHANG X, ZHANG H. Some problems on the axial crushing of multi-cells [J]. International Journal of Mechanical Sciences, 2015, 103: 30-39.
[25] LIU W Y, JIN L, LUO Y Q, et al. Multi-objective crashworthiness optimisation of tapered star-shaped tubes under oblique impact [J]. International Journal of Crashworthiness, 2020, 1: 1-15.
[26] XU F X, TIAN X Y, LI G Y. Experimental study on crashworthiness of functionally graded thickness thin-walled tubular structures [J]. Experimental Mechanics, 2015, 55(7): 1339-1352.
[27] DENG X L, QIN S G, HUANG J L. Energy absorption characteristics of axially varying thickness lateral corrugated tubes under axial impact loading [J]. Thin-Walled Structures, 2021, 163: 1-27.
[28] DENG X L, LIU W Y. Multi-objective optimization of thin-walled sandwich tubes with lateral corrugated tubes in the middle for energy absorption [J]. Thin-Walled Structures, 2019, 137: 303-317.
[29] DENG X L, LIU W Y. Crashworthiness research and optimisation design of sandwich multi-cell conical tube under axial impact [J]. International Journal of Materials and Structural Integrity, 2017, 11(1/2/3): 82-105.