Dynamic Analysis of Satellites Used for Side-Airbag System

Gozman-Pop, Calin; Simoiu, Dorin; Crastiu, Ion; Nyaguly, Eva; Oanţă, Eduard Nicuşor; Bereteu, Liviu

doi:10.1088/1757-899x/416/1/012024

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Scholars from various countries have conducted systematic research and exploration in areas such as air spring inflation simulation, nonlinear characteristics, and structural parameter optimization. 1,2 In particular, exploration in the field of ejection has provided a new direction for studying air springs. Rubber, which is a popular hyperelastic material, has always been challenging to studying current research due to its nonlinear characteristics.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation and performance prediction of the ejection impact of air springs

Li,

Xiao,

Xie

et al. 2024

Advances in Mechanical Engineering

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To address the challenges of applying air springs in high-speed rail vehicle ejections, the ejection of a driver’s cabin structure is focused on in this study, and an ejection simulation model of an air spring is proposed using a series-parallel combination. The model’s accuracy is verified through virtual collision analysis of the driver’s cabin in a rail vehicle. The ejection velocity exhibits a relative error of only 9.1%. The test vehicle, driven by an air spring, achieves a maximum kinetic energy of 415 kJ, meeting the initial target value of no less than 408 kJ. Additionally, the analysis of the wheel-rail interaction reveals that the vertical lift and lateral displacement of the test vehicle are within acceptable limits, measuring 5.49 and 9.89 mm, respectively, without exceeding the wheel flange height and tread width. These results demonstrate that an air spring with a series-parallel combination can successfully propel the test vehicle to conduct the driver’s cabin collision tests without any derailment or overturning. Research on the ejection performance of air springs in this configuration offers a new driving and ejection method for applying air springs in rail vehicles, drones, and air-launched missiles, presenting promising prospects for future applications.

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Section: Introductionmentioning

confidence: 99%

Numerical simulation and performance prediction of the ejection impact of air springs

Li,

Xiao,

Xie

et al. 2024

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…In the past few decades, finite element simulation technology has become an important means to study the characteristics of airbags, making significant contributions to the rapid commercial application of airbags. Scholars from various countries have conducted systematic research and exploration in areas such as airbag inflation simulation, nonlinear characteristics, and structural parameter optimization [1,2]. In particular, the exploration in the field of ejection has provided a new direction for air spring.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Performance Prediction of Ejection Impact of Air Spring Based on Fluid–Structure Interaction

li,

Xiao,

Xie

et al. 2023

Preprint

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Air springs have found wide application in cushioning and shock absorption, but their use in ejection scenarios is still in its early stages. To address the challenges of applying air spring in high-speed ejections of rail vehicles, this study focuses on the ejection of the driver's cabin structure and investigates the elastic performance of air spring using a series-parallel combination. The study analyzes ejection characteristics for air spring in a series-parallel configuration by number simulation. A second-order response surface method is employed to establish a predictive model for the ejection performance of air spring in this configuration. The model's accuracy is verified through virtual collision analysis of the driver's cabin in a rail vehicle. The ejection velocity exhibits a relative error of only 9.1%. The test vehicle, driven by air spring, achieves a maximum kinetic energy of 415 kJ, meeting the initial target value of not less than 408 kJ. Additionally, the analysis of wheel-rail interaction reveals that the vertical lift and lateral displacement of the test vehicle are within acceptable limits, measuring 5.49 mm and 9.89 mm, respectively, without exceeding the wheel flange height and tread width. These results demonstrate that air spring with series-parallel combination can successfully propel the test vehicle to conduct driver's cabin collision tests, without any derailment or overturning. As a result, the study realizes ejection tests using air spring with series-parallel combination. The research on the ejection performance of air spring in this configuration offers a new driving and ejection method for applying air spring in rail vehicles, drones, and air-launched missiles, presenting promising prospects for future applications.

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