Thin-walled structures are widely used in energy absorbing devices attributed to their light weight and excellent energy absorption efficiency. In this paper, an innovative sandwich sinusoidal lateral corrugated tubes (SSLCTs) was proposed. It consists of the outer circular tubes (OCTs), the inner circular tubes (ICTs) and a new type of lateral corrugated tubes (LCTs) with a sinusoidal cross-section in the middle. Systematic crashworthiness study for SSLCTs is carried out with multi-objective optimization design. The results show that the wall thickness of ICTs plays an important role in the specific energy absorption, while the wall thickness of OCTs plays a major role in initial peak force. The multi-objective optimizations of SSLCTs with N = 6 and N = 10 were performed. The optimization results show that the Pareto frontier coverage is wider for SSLCTs with N = 6 than N = 10. But these two different SSLCTs get almost identical optimal solutions. Finally, the interaction effects were also studied and it was found that the highest initial peak force was reduced by 22.39%, and the specific energy absorption was increased by 16.75% compared to the separate compression of individual tube.

薄壁结构由于其重量轻和优异的能量吸收效率而被广泛用于能量吸收装置中。在本文中，提出了一种创新的三明治正弦形侧面波纹管（SSLCT）。它由外圆管（OCT），内圆管（ICT）和中间有正弦形横截面的新型横向波纹管（LCT）组成。SSLCT的系统耐撞性研究是通过多目标优化设计进行的。结果表明，ICT的壁厚在比能量吸收中起重要作用，而OCT的壁厚在初始峰值力中起主要作用。N  = 6和N的SSLCT的多目标优化 =进行10次。优化结果表明，对于N  = 6的SSLCT，Pareto边界覆盖范围比N  = 10大。但是，这两个不同的SSLCT获得了几乎相同的最优解。最后，还研究了相互作用效应，发现与单独压缩单个管相比，最高初始峰值力降低了22.39％，比能量吸收提高了16.75％。