航天继电器PIND极限冲击试验条件仿真研究
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摘要
微粒碰撞噪声检测(PIND)是航天继电器出厂前必做的多余物检测试验,冲击试验条件强度越大,多余物微粒越容易被激活,但过大的冲击强度会使继电器内部组件发生疲劳损伤和塑性变形。针对实验研究法和理论推导法在研究极限冲击试验条件时可操作性不强的问题,本文提出了航天继电器PIND极限冲击条件仿真研究方法。以某型号航天继电器为例,利用Patran/Nastran软件建立被试器件的有限元模型,仿真分析各组件在外加冲击激励下的响应。根据仿真结果研究被试器件响应的变化规律和PIND极限冲击试验条件,并通过实验证明了该方法的有效性。
Particle Impact Noise Detection( PIND) is one of the most important methods in detecting remainders within space relays. Remainder particles are activated more easily with greater intensity of impact conditions.But excessive intensity of impact will lead to fatigue damage and plastic deformation of the internal components of relays. In this paper,a simulation analysis is taken to research the ultimate impact conditions on PIND of space relay,considering the theoretical derivation methods and experimental research methods are not convenient to operate. A certain type of aerospace relay is taken as an example,and finite element model of device is established with Patran / Nastran software to explore the response of each component of the device under external impact conditions.According to the simulation results,the regulation of change of responds and the ultimate impact conditions on PIND are obtained,and the effectiveness of the method is demonstrated by the experimental results.
Particle Impact Noise Detection( PIND) is one of the most important methods in detecting remainders within space relays. Remainder particles are activated more easily with greater intensity of impact conditions.But excessive intensity of impact will lead to fatigue damage and plastic deformation of the internal components of relays. In this paper,a simulation analysis is taken to research the ultimate impact conditions on PIND of space relay,considering the theoretical derivation methods and experimental research methods are not convenient to operate. A certain type of aerospace relay is taken as an example,and finite element model of device is established with Patran / Nastran software to explore the response of each component of the device under external impact conditions.According to the simulation results,the regulation of change of responds and the ultimate impact conditions on PIND are obtained,and the effectiveness of the method is demonstrated by the experimental results.
引文
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[2]R.Phil.Testing techniques to improve relay reliability[J].EE:Evaluation Engineering,2005,44(4):44-48.
[3]郑南昌.控制系统继电器可靠性分析与措施[J].火箭推进,2005,31(4):58-62.
[4]Hammerstrom I,Kuhn M,Wittneben A.Channel adaptive scheduling for cooperative relay networks[C].2004IEEE 60th Vehicular Technology Conference,2004,60(4):2784-2788.
[5]李大南.航天型号产品多余物及其预防和控制标准的实施检查[J].航天标准化,2006,(1):17-20.
[6]R.McCullough.Hermeticity and Particle Impact Noise Test Techniques.14th Annual Proceedings of Reliability Physics.1996,(8):256～262.
[7]杜迎,吕栋,潘伟力等.粒子碰撞噪声检测(PIND)试验的研究.电子产品可靠性与环境试验.2005(1):34～39.
[8]Zhang H,Wang S J,Zhai G F.Dynamic model of particle impact noise detection[C].IEEE IECON,2004:2577-2581.
[9]Zhang H,Wang S J,Zhai G F.Test conditions discussion of particle impact noise detection for space relay[C].IEEE IECON,2004:2566-2572.
[10]张辉,王淑娟,翟国富.航天继电器多余物微粒碰撞噪声检测的单周期稳定性分析[J].航空学报,2005:26(3):362-366.
[11]王淑娟,王国涛,翟国富等.航天继电器多余物微粒碰撞噪声检测的冲击试验条件[J].电工技术学报,2011(1):74-80
[12]Guotao Wang,Kang Li,Shujuan Wang.A Study on the Activation Condition of Vibration Tests for Particle Impact Noise Detection of Space Relay Remainders[C].ICIEA2011,2011,6.25-27,Beijing.
[13]刘伟章.方形TO-5继电器的研制[J].机电元件,1984,4(1):12～19
[14]吴善跃,黄映云,朱石坚,秦俊明.基于冲击模拟台的减振器冲击特性测试[J].武汉理工大学学报.2007,31(1):53～56
[15]王树荣,卢彩铃,康宁民.产品的震动冲击响应设计[J].环境试验.2010,(6):2～10