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Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading

An experimental testing system for the two-dimensional (2D) fuze overload loading process was designed to address the loading issues of recoil overload and centrifugal overload in fuze safety and arming (S&A) device. By incorporating centrifuge rotation energy storage, impact acceleration simula...

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Detalles Bibliográficos
Autores principales: Wu, Zhibo, Zhang, Yanbing, Sun, Chuanmeng, Feng, Lei, Liu, Shuangfeng, Jiao, Bin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456412/
https://www.ncbi.nlm.nih.gov/pubmed/37630102
http://dx.doi.org/10.3390/mi14081566
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author Wu, Zhibo
Zhang, Yanbing
Sun, Chuanmeng
Feng, Lei
Liu, Shuangfeng
Jiao, Bin
author_facet Wu, Zhibo
Zhang, Yanbing
Sun, Chuanmeng
Feng, Lei
Liu, Shuangfeng
Jiao, Bin
author_sort Wu, Zhibo
collection PubMed
description An experimental testing system for the two-dimensional (2D) fuze overload loading process was designed to address the loading issues of recoil overload and centrifugal overload in fuze safety and arming (S&A) device. By incorporating centrifuge rotation energy storage, impact acceleration simulation, and equivalent centrifugal rotation simulation, a block equipped with a fuze S&A device accelerated instantly upon having impact from a centrifuge-driven impact hammer, simulating recoil overload loading. The impact hammer was retracted instantaneously by adopting an electromagnetic brake, which resulted in the centrifugal rotation of the block around its track, to simulate the centrifugal overload loading. The dynamic equations of the experimental testing system and the equations of impact hammer motions were established, whereby the rotation speed of the centrifuge and the braking force of the electromagnetic brake were calculated and selected. A dynamic model of the collision between the impact hammer and block was established using ANSYS/LS-DYNA software for simulation analysis. The acceleration curves of the recoil overload and centrifugal overload with variations in the centrifuge speed, cushion material, and buffer thickness were obtained, which verified the feasibility of the proposed loading simulation method. Two-dimensional overload loading simulation tests were performed using the developed experimental testing system, and the acceleration curves of the recoil overload and centrifugal overload were measured. The test results indicated that the proposed system can accomplish 2D overload loading simulations for a recoil overload of several 10,000× g and centrifugal overload of several 1000× g.
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spelling pubmed-104564122023-08-26 Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading Wu, Zhibo Zhang, Yanbing Sun, Chuanmeng Feng, Lei Liu, Shuangfeng Jiao, Bin Micromachines (Basel) Article An experimental testing system for the two-dimensional (2D) fuze overload loading process was designed to address the loading issues of recoil overload and centrifugal overload in fuze safety and arming (S&A) device. By incorporating centrifuge rotation energy storage, impact acceleration simulation, and equivalent centrifugal rotation simulation, a block equipped with a fuze S&A device accelerated instantly upon having impact from a centrifuge-driven impact hammer, simulating recoil overload loading. The impact hammer was retracted instantaneously by adopting an electromagnetic brake, which resulted in the centrifugal rotation of the block around its track, to simulate the centrifugal overload loading. The dynamic equations of the experimental testing system and the equations of impact hammer motions were established, whereby the rotation speed of the centrifuge and the braking force of the electromagnetic brake were calculated and selected. A dynamic model of the collision between the impact hammer and block was established using ANSYS/LS-DYNA software for simulation analysis. The acceleration curves of the recoil overload and centrifugal overload with variations in the centrifuge speed, cushion material, and buffer thickness were obtained, which verified the feasibility of the proposed loading simulation method. Two-dimensional overload loading simulation tests were performed using the developed experimental testing system, and the acceleration curves of the recoil overload and centrifugal overload were measured. The test results indicated that the proposed system can accomplish 2D overload loading simulations for a recoil overload of several 10,000× g and centrifugal overload of several 1000× g. MDPI 2023-08-07 /pmc/articles/PMC10456412/ /pubmed/37630102 http://dx.doi.org/10.3390/mi14081566 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wu, Zhibo
Zhang, Yanbing
Sun, Chuanmeng
Feng, Lei
Liu, Shuangfeng
Jiao, Bin
Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading
title Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading
title_full Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading
title_fullStr Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading
title_full_unstemmed Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading
title_short Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading
title_sort simulation methods for mems s&a devices for 2d fuze overload loading
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456412/
https://www.ncbi.nlm.nih.gov/pubmed/37630102
http://dx.doi.org/10.3390/mi14081566
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