小型强冲击试验机气动弹射装置动态特性研究  

Study on Dynamic Characteristics of Pneumatic Ejection Device for Small Strong Impact Testing Machine

作　　者：李洛洛 乔赫廷 闫明[1] LI Luoluo;QIAO Heting;YAN Ming(Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学,辽宁沈阳110870

出　　处：《河南科技》2023年第17期35-40,共6页Henan Science and Technology

摘　　要：【目的】由于舰载设备所受高脉冲威胁越来越强,为了提高其抗冲击上限,针对小型设备,提出一种小型强冲击试验机系统方案。【方法】根据系统工作流程,阐述小型强冲击试验机工作原理,基于气缸弹射原理来建立数学模型,使用AMESIM对气缸弹射装置进行仿真分析,对试验台与波形发生器进行动态特性研究。【结果】该气动弹射装置通过调节储气罐压力来改变试验台的碰撞速度,与波形发生器相撞时,可获得较为理想可控的加速度脉冲,并通过气缸工作原理,控制气体压力防止二次碰撞。【结论】试验结果表明,该冲击试验机气动装置满足设计要求。[Purposes]Due to the increasing threat of high pulse on shipboard equipment,in order to improve its upper limit of impact resistance,a small strong impact testing machine system scheme is proposed for small equipment.[Methods]According to the working process of the system,the working principle of the small strong impact testing machine is expounded.The mathematical model is established based on the principle of cylinder ejection.The AMESIM is used to simulate and analyze the cylinder ejection device,and the dynamic characteristics of the test bench and the waveform generator are studied.[Findings]The pneumatic ejection device changed the collision speed of the test bench by adjusting the pressure of the gas storage tank.When it collided with the waveform generator,an ideal controllable acceleration pulse could be obtained.Through the working principle of the cylinder,the gas pressure was controlled to prevent secondary collision.[Conclusions]The test results show that the pneumatic device of the impact tester meets the design requirements.

关 键 词：小型强冲击 冲击试验 弹射装置 气动控制 抗冲击能力 

分 类 号：TH122[机械工程—机械设计及理论]