The impact performance of honeycomb-filled structures under eccentric loading for subway vehicles

Yao, Shuguang; Xiao, Xianliang; Xu, Ping; Qu, Qiuyun; Che, Quanwei

doi:10.1016/j.tws.2017.10.031

Cited by 70 publications

(16 citation statements)

References 31 publications

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“…; E is the Young's modulus; tan E is the tangent modulus of plastic deformation;  denotes the hardening parameters that varies between 0 and 1. According to the literature (Yao et al 2018;Xie et al 2018), on the basis of the material of energy-absorbing structure, the parameters in Table 1 are taken as the material parameters for the Q235 steel structure in this numerical crash analysis. Table 1 Material parameters for the steel structure.…”

Section: Materials Model Of the Structurementioning

confidence: 99%

“…According to the literature (Peng et al 2015;Yao et al 2018) and the requirement of GM/RT2100, the constraint of the optimisation is that the initial peak crushing force induced by collision is not more than 1,500 kN and the deformation displacement should be less than 600 mm…”

Section: Optimisation Formulationmentioning

confidence: 99%

“…Moreover, they designed the energy-absorption structures on the basis of the impact analysis of a square thin-walled structure. To improve the impact performance of honeycomb-filled structures under eccentric loading for subway vehicles, Yao et al (2018) conducted an optimisation that the cross-sectional shape of the guide was changed based on the bending strength and found that no instability phenomenon arose in the improved structure. designed a composite EAS for a certain subway vehicle to meet the requirements for passive safety protection during railway vehicle collisions.…”

Section: Introductionmentioning

confidence: 99%

“…During the process of simulation, the boundary conditions were fully consistent with those applied to the experiment, and the same sampling frequency and filtering methods were used throughout. (a) The experimental model of the trolley and EAS (b) FEM of the trolley and EAS Many impact experiments and simulations have been carried out(Yao et al 2018), which…”

mentioning

confidence: 99%

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Crashworthiness optimisation of a composite energy-absorbing structure for subway vehicles based on hybrid particle swarm optimisation

Xie

Yang

et al. 2018

Struct Multidisc Optim

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Section: Materials Model Of the Structurementioning

confidence: 99%

Section: Optimisation Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Crashworthiness optimisation of a composite energy-absorbing structure for subway vehicles based on hybrid particle swarm optimisation

Xie

Yang

et al. 2018

Struct Multidisc Optim

Self Cite

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“…Consequently, numerous requirements must be met, namely those related to fire protection, acoustic and thermal insulation [3,5], electronic devices, reliability, availability, maintainability, safety, protection against current and various environmental conditions and loads caused by vibrations, which rise when riding on a track at various speeds [12,33]. Great emphasis is put on noise protection, as this well-known negative phenomenon is a consequence of every braking process [6,7,24,28].…”

Section: Fig 2 Vehicle Coordinate Systemmentioning

confidence: 99%

Design of a Metro Door System and Determination of Main Loads

et al. 2019

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This article discussed the determination of a metro vehicle's door forces acting on its coarse structure. With previous articles addressing this issue, a definition of a specific reference vehicle was provided together with the collection of the normative requirements for metro vehicles. These form a basis for addressing the issue. The main objective hereof was to design a technical solution of a door system for the reference vehicle and create a parametric model of the door's forces acting on the vehicle's rough structure. This model would serve to approximate and operatively quantify these force effects of the door to the vehicle's structure by modifying the various input parameters. Therefore, it was necessary to create a mathematical model of the equilibrium conditions of the proposed door system and to quantify them using a developed software. Subsequently, these results served as inputs for the FEM analysis of the load-bearing components between the door and the vehicle's structure.

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Crashworthiness optimization of honeycomb structures under out‐of‐plane impact using radial basis functions

Rodrigues

Luersen

2020

Materialwissenschaft Werkst

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Crashworthiness design and development of lightweight structures have become important engineering challenges because of the high standards of energy consumption and safety regulations. Within this context, the use of honeycomb structures as crush absorber is continuously growing in automotive and aircraft industries, once honeycombs are known for their high strength‐to‐weight ratio and excellent energy absorbing capacity. Thus, this paper presents a method that combines radial basis functions with expected improvement to optimize the specific energy absorption of honeycomb cellular materials, while the peak crush force is constrained at low levels for safety reasons. Honeycomb's cell size, cell shape and thickness are the design variables. Concerning the cell shape, the results indicate the hexagonal configuration has a higher out‐of‐plane performance compared to auxetic and rectangular cells in terms of energy absorption capacity. Lastly, a multi‐objective optimization using only the radial basis function predictor (without sequential sampling) is carried out to seek simultaneously for optimal solutions with minimum peak force and maximum specific energy absorption.

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The impact performance of honeycomb-filled structures under eccentric loading for subway vehicles

Cited by 70 publications

References 31 publications

Crashworthiness optimisation of a composite energy-absorbing structure for subway vehicles based on hybrid particle swarm optimisation

Crashworthiness optimisation of a composite energy-absorbing structure for subway vehicles based on hybrid particle swarm optimisation

Design of a Metro Door System and Determination of Main Loads

Crashworthiness optimization of honeycomb structures under out‐of‐plane impact using radial basis functions

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