Research on Assessment Method of Airbag Cushion System for Airdropping Equipment

Hong, Huangjie

doi:10.3901/jme.2015.04.148

Cited by 4 publications

(4 citation statements)

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“…The vibration collisions and tires deformation of the travel system consume part of the kinetic energy. The highest vehicle acceleration of the traditional model is 10.27 g. That of the Figure 1 Traditional model for finite element analysis of airborne armored vehicles (Hong et al 2015a;Li et al, 2022Li et al, , 2014Lu et al, 2023) Figure 2 Schematic diagram of the airbags complete model is 9.76 g, which decreases by about 4.97%. This is the simulation error of the whole vehicle caused by the traditional model.…”

Section: Difference Between the Complete Nonlinear Model And The Trad...mentioning

confidence: 98%

“…Traditional model for finite element analysis of airborne armored vehicles (Hong et al 2015a; Li et al , 2022, 2014; Lu et al , 2023)…”

Section: Figurementioning

confidence: 99%

“…These models simplify or even ignore the complex structures such as crawlers and wheels in simulations. Hong et al (2015aHong et al ( , 2015b) established a simplified model of airborne armored vehicles using thermodynamic and finite element methods. They evaluated and optimized its landing cushioning performance based on the Monte Carlo method.…”

Section: Introductionmentioning

confidence: 99%

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Landing cushioning analysis of new generation heavy airborne armored vehicles

Lu,

Chen,

Wang

et al. 2024

AEAT

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Purpose The purpose of this study is to ensure the successful implementation of a landing cushion for the new generation armored vehicles with significantly enhanced quality. Furthermore, to introduce a high-precision landing cushioning analysis model. Design/methodology/approach To accurately analyze the cushioning performance of the new generation armored vehicles, a nonlinear finite element dynamics model considering the complex travel system was established. The model considered the influence of various nonlinear factors to measure the dynamic response difference between the proposed and traditional models. The cushioning performance of airbags under different landing conditions and their various influence factors were analyzed. Findings The travel system has a large influence on the key points of the vehicle, whose rear end of the upper deck has a larger acceleration fluctuation compared with the traditional model. The increase in the body material stiffness is helpful to reduce this fluctuation. The established nonlinear finite element model can effectively analyze the landing cushioning performance of airborne armored vehicles. The area of the external airbag vent has a large influence on the cushioning performance, and the cushioning system has excellent cushioning performance under various operating conditions. Practical implications This study introduces the travel system, which is ignored by traditional analytical models. The interactions between various types of complex structures are included in the analysis process in its entirety, leading to valuable new conclusions. Quantitatively reveals the analytical errors of traditional simulation models in multiple dimensions and the reasons for their formation. Based on a high-precision simulation model, it is verified that the designed airbag cushioning system has an excellent cushioning effect for the new generation of heavy airborne armored vehicles. Originality/value The novelty of this work comes from the need for smooth landing with low overload for a new type of large-load airborne armored vehicle and provides a high-precision model that quantifies the traditional analytical modeling errors and error principle.

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Section: Difference Between the Complete Nonlinear Model And The Trad...mentioning

confidence: 98%

“…Traditional model for finite element analysis of airborne armored vehicles (Hong et al 2015a; Li et al , 2022, 2014; Lu et al , 2023)…”

Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Landing cushioning analysis of new generation heavy airborne armored vehicles

Lu,

Chen,

Wang

et al. 2024

AEAT

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“…Ning et al 17 studied the airbag rupture jet flow field and gasbag rupture jet with different ruptured positions and obtained the variation of the internal pressure of gasbag and its influence on projectile motion. JY Li et al 18 and HJ Hong et al 19 proposed a modification for cushioning airbags and an evaluation method for airbag system. In recent years, Schenck from Germany, HYGE, MTS, IST Schenck from United States, Mitsubishi Heavy industries from Japan, and so on have successively developed the collision test acceleration methods such as using hydraulic drive and cylinder drive.…”

Section: Introductionmentioning

confidence: 99%

Study on the influence factors of impact ejection performance for flexible airbag

Xiao

Yang

et al. 2018

Advances in Mechanical Engineering

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In order to improve the impact ejection performance of the flexible airbag and to reveal the airbag inflating mechanism, a simulation model was built and verified by carrying out the flexible airbag impact ejection test. Based on this model, the influence of mass flow, compression displacement, and airbag thickness on flexible airbag ejection impact performance were studied. The results show that the ejection velocity of the flexible airbag increases as mass flow increases, but the excessive air mass flow does not improve the impact ejection performance of the airbag. The simulation results also demonstrate that the flexible airbag will oscillate reciprocally after it has no more contact with the moving rigid body and every node in the flexible airbag model has the same oscillating displacement. The analysis of compression displacement shows that it has a significant effect on the improvement of ejection performance. In conclusion, to improve the impact ejection performance of flexible airbag, the mass flow and compression displacement should be changed in a certain scope, which can provide reference for the topological structure design of the flexible airbag.

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Test Research on Airdrop Shock Vibration of Armored Vehicles

Hou

Zhang

et al. 2019

IOP Conf. Ser.: Mater. Sci. Eng.

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In view of the airdrop adaptability of a lightweight high-mobility wheeled armored vehicle, the shock vibration of the vehicle’s onboard electronic equipment under simulated airdrop was tested and the shock characteristic of the equipment was analyzed. The test results show that the onboard equipment of the airdrop vehicle is mainly subjected to three stages of shock vibration, which includes the crash of the lifting rope, shock of the cushion airbag and the rebound shock. The cushion airbags can effectively reduce the shock acceleration peak of the onboard electronic equipment of the light wheeled armored vehicle, and the shock peak of the onboard computer and power supply is about 9-10 g with the shock duration of 0.15-0.2 s. While compared with the shock of the base, the buffering effect of the isolators to the airdrop shock vibration is not satisfied. Resonances of the isolation system are caused by the airdrop shock and the shock peaks of the tested electronic equipment are higher than that of the base.

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Research on Assessment Method of Airbag Cushion System for Airdropping Equipment

Cited by 4 publications

References 0 publications

Landing cushioning analysis of new generation heavy airborne armored vehicles

Landing cushioning analysis of new generation heavy airborne armored vehicles

Study on the influence factors of impact ejection performance for flexible airbag

Test Research on Airdrop Shock Vibration of Armored Vehicles

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