Pulse regulation effect and nonlinear dynamic model of polyurethane waveform generators

Yang, Guanxia; Wu, Haijun; Dong, Heng; Yang, Yekai; Huang, Fenglei

doi:10.1016/j.ijimpeng.2022.104407

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…Currently, materials commonly used for fuzes' cushioning and damping include polyurethane [1,2] , epoxy resin [3,4] , natural rubber [5,6] , and more. Shear-thickening gel (STG) is a non-Newtonian fluid, when subjected to impact, STG undergoes a liquid-to-solid transition, resulting in a significant increase in its storage modulus.…”

Section: Introductionmentioning

confidence: 99%

Influence patterns of shear-thickening gel on overload transmission: a numerical simulation study

Wang,

Pi,

Wang

et al. 2024

J. Phys.: Conf. Ser.

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To address signal aliasing challenges encountered by smart munition fuzes during penetration and layer counting processes, this study employs shear-thickening gel (STG) as a cushioning protective material for accelerometers. Based on the SHPB test platform, the test is designed and the finite element numerical simulation is carried out. The thickness of the shear-thickening gel specimen is treated as a research variable, enabling a systematic analysis of its mechanical filtering effect on overload acceleration. Furthermore, a spring-damping physical model for the cushioning structure is established, facilitating a theoretical exploration of the filtering mechanism on the acceleration signal. Research findings indicate that within a certain frequency bandwidth, STG materials can effectively filter out high-frequency signals received by the accelerometer. Additionally, augmenting the thickness of STG materials has a positive impact on achieving superior filtering performance within the high-frequency range.

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