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Design,FabricationandActuationPerformanceofPyroMEMSSafeandArm DeviceBasedonSiliconDouble
SolidBeams
HOUGang,ZHUPeng,LIYu,SHEN Ruiqi,YEYinghua
(SchoolofChemicalEngineering,NanjingUniversityofScienceandTechnology,Nanjing210094,China)
Abstract:Tomeetthedevelopmentrequirementsofminiaturizationandhighreliabilityofweaponandammunitionsafetysystem,
asafeandarmingdeviceofpyrotechnicalmicroelectromechanicalsystem(PyroMEMS)basedonsilicondoublesolidbeamswas
designed.Thecompressivestrengthandoverloadstrengthofthesolidbeam inthesafeandarmingmechanism layerweresimulated
byusingABAQUSsoftware.TheprincipleprototypeofsafeandarmingdeviceofPyroMEMSwasfabricatedusingmicroelectro
mechanicalsystem(MEMS) technologyaccordingto thesimulation results.In orderto studyitsactuation performance,the
Si/PbO mixtureofmassratioas1∶9wasselectedasignitionpowderandtheC H (NO )OK/KClO mixtureofmassratioas
2
6
4
2 3
3
4
1∶1wasselectedasgasgenerator.Resultsshow thatthecompressivestrengthis310.03MPaandtheoverloadstrengthis47.31g
asthebohlengthsizeandwidthsizeofsilicondoublesolidbeamsinthesafeandarmingdeviceare300μ m.Thedesigned
PyroMEMSS&Adevicecansuccessfullyrealizesafeandarmingfunctions.
Keywords:pyrotechnicalmicroelectromechanicalsystem(PyroMEMS);microelectromechanicalsystem(MEMS);safeandarm
device;silicondoublesolidbeams;Si/PbO ignitionpowder
3 4
CLCnumber:TJ55 Documentcode:A DOI:10.11943/j.issn.10069941.2018.03.011
ChineseJournalofEnergeticMaterials,Vol.26,No.3,2018(267 - 272) !"#$ www.energeticmaterials.org.cn