Multi-objective explosion-proof performance optimization of a novel vehicle door with negative Poisson’s ratio structure

Wang, Chunyan; Zou, Songchun; Zhao, Wanzhong; Wang, YuanLong; Guan, Zailin

doi:10.1007/s00158-018-2026-z

Cited by 19 publications

(5 citation statements)

References 48 publications

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“…The designs of the SMA metamaterial gird for the linear wound (SMA-L) and the circular wound (SMA-C) rely on network construction in a periodic lattice topology (37)(38)(39). The unicellular building blocks, partially enlarged block elements (pink dotted frames), and various designs of the SMA-L and SMA-C are illustrated in Fig.…”

Section: Design and Performance Of The Sma Metamaterials Gridsmentioning

confidence: 99%

A programmable and skin temperature–activated electromechanical synergistic dressing for effective wound healing

Yao

Yin

et al. 2022

Sci. Adv.

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Mechanical regulation and electric stimulation hold great promise in skin tissue engineering for manipulating wound healing. However, the complexity of equipment operation and stimulation implementation remains an ongoing challenge in clinical applications. Here, we propose a programmable and skin temperature–activated electromechanical synergistic wound dressing composed of a shape memory alloy-based mechanical metamaterial for wound contraction and an antibacterial electret thin film for electric field generation. This strategy is successfully demonstrated on rats to achieve effective wound healing in as short as 4 and 8 days for linear and circular wounds, respectively, with a statistically significant over 50% improvement in wound closure rate versus the blank control group. The optimally designed electromechanical synergistic stimulation could regulate the wound microenvironment to accelerate healing metabolism, promote wound closure, and inhibit infection. This work provided an effective wound healing strategy in the context of a programmable temperature-responsive, battery-free electromechanical synergistic biomedical device.

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Section: Design and Performance Of The Sma Metamaterials Gridsmentioning

confidence: 99%

A programmable and skin temperature–activated electromechanical synergistic dressing for effective wound healing

Yao

Yin

et al. 2022

Sci. Adv.

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“…Furthermore, the impact of system parameters were confirmed by the numerical results. Wang et al 17 studied the explosion-proof doors of military vehicles and optimized the gradient set based on the NPR explosion-proof doors filled with NPR structure. After the simple forward and reverse gradient test design and simulation, they focused on the optimization of the reverse gradient and finally obtained the Pareto solution set of the optimized gradient.…”

Section: Functional Gradient Structurementioning

confidence: 99%

“…The bigger the s p , the flatter the R p (x), and the more influence it has on other f p (x). 20 Root mean square error (RMSE) and correlation coefficient (R 2 ) are two commonly used error test indicators in model validation, which are adopted to evaluate the precision of the RBF models and the expressions of their equations are written as 17,21 :…”

Section: Establishment Of Radial Basis Function (Rbf) Neural Network ...mentioning

confidence: 99%

Optimal design of a novel crash box with functional gradient negative Poisson’s ratio structure

Guan

Yan

Wang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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Crashworthiness and anti-vibration performance play critical roles in the performance of passenger cars. Aiming at enhancing the crash resistance and vibration resistance of vehicles thus providing good protection for passengers and drivers, a novel crash box with three-dimensional double arrow type negative Poisson’s ratio structure with functional gradient filling inner core (FGNPR crash box) is introduced in this paper and its performance is studied in detail through the comparison with the conventional crash box and the crash box filled with the uniform gradient negative Poisson’s ratio structure (NPR crash box) in crashworthiness and vibration resistance. Furthermore, range analysis is used to screen out the design variables that have little influence on the evaluation indexes and eliminate them. Based on these, neighborhood cultivation genetic algorithm (NCGA) and non-dominated sorting genetic algorithm-ii (NSGA-II) are selected as the optimization algorithms to carry out optimization design respectively and a comparison is made between the two suboptimal results screened out based on the normal boundary intersection (NBI) method to determine the overall optimal solution. Results show that the optimized FGNPR crash box has better crashworthiness and vibration resistance over the other crash boxes and its performance is further verified based on the peak acceleration of B-pillar in full vehicle crash condition. This paper provides some theoretical reference support for the development and exploration of automobile crash box systems.

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“…With the development of technology, many fabrication methods such as hotpress molding, interlocking, and additive manufacturing have been employed to manufacture sandwich structures using a variety of materials. Extensive research has been performed on reducing the weight and improving the properties of sandwich structures for automobile, [11][12][13] aerospace, [14][15][16] and marine [17][18][19] applications.…”

Section: Introductionmentioning

confidence: 99%

Study of the mechanical properties and failure behavior of a novel PA12 lattice sandwich structure

Zheng

Zhang

Yang

et al. 2023

Journal of Thermoplastic Composite Materials

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In this study, a novel lattice structure with Y-shaped cores was designed. Specimens of the structure were fabricated using 3D printing technology for quasi-static compression tests. Numerical simulations were also performed to investigate the mechanical properties and failure behavior of the lattice structure. The numerical results are in good agreement with the experimental results. The numerical simulations are used to reveal the failure processes and failure mechanisms of structures with different relative densities. The results show that the relative density has significant effects on the mechanical properties of the lattice structure, and that different methods of changing the relative density lead to different results.

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Multi-objective explosion-proof performance optimization of a novel vehicle door with negative Poisson’s ratio structure

Cited by 19 publications

References 48 publications

A programmable and skin temperature–activated electromechanical synergistic dressing for effective wound healing

A programmable and skin temperature–activated electromechanical synergistic dressing for effective wound healing

Optimal design of a novel crash box with functional gradient negative Poisson’s ratio structure

Study of the mechanical properties and failure behavior of a novel PA12 lattice sandwich structure

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