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兵工学报 ›› 2019, Vol. 40 ›› Issue (1): 29-34.doi: 10.3969/j.issn.1000-1093.2019.01.004

• 论文 • 上一篇    下一篇

液压伺服预紧的电磁发射轨道振动频率和幅值特性研究

王振春1,2, 杨德功1,3, 张玉燕1,3   

  1. (1.燕山大学 电气工程学院, 河北 秦皇岛 066004;2.燕山大学 工业计算机控制工程河北省重点实验室, 河北 秦皇岛 066004;3.燕山大学 测试计量技术及仪器河北省重点实验室, 河北 秦皇岛 066004)
  • 收稿日期:2018-04-23 修回日期:2018-04-23 上线日期:2019-03-12
  • 作者简介:王振春(1979—),男,副研究员。E-mail:zcwang@ysu.edu.cn
  • 基金资助:
    国家自然科学基金项目(61403333);河北省高等学校科学技术研究项目(ZC2016099)

Research on Vibrational Frequency and Amplitude Characteristics of Electromagnetic Launch Rail under Hydraulic Pre-load

WANG Zhenchun1,2, YANG Degong1,3, ZHANG Yuyan1,3   

  1. (1.School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China; 2.Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Yanshan University, Qinhuangdao 066004, Hebei, China; 3.Key Laboratory of Measurement Technology and Instrumentation of Hebei Province, Yanshan University, Qinhuangdao 066004, Hebei, China)
  • Received:2018-04-23 Revised:2018-04-23 Online:2019-03-12

摘要: 为提高电磁轨道发射装置的稳定性,提出在电磁发射装置身管上施加预紧压力,利用液压伺服的液压自稳定性来平衡电磁冲击力引起的振动。在发射装置上3个不同位置安装具有抗电磁干扰的压电加速度传感器实时采集轨道的振动信号,应用虚拟仪器技术对比分析轨道振动频率和幅值变化。施加液压伺服预紧后大幅值振动时间明显缩短,并且在不同位置施加液压伺服预紧,发射装置呈现不同的振动特性。试验结果表明,施加液压伺服预紧能够有效缩短轨道的振动持续时间,提高电磁轨道发射装置的稳定性。

关键词: 电磁发射, 振动特性, 液压伺服预紧, 幅值谱图

Abstract: In order to improve the stability of electromagnetic rail launcher, a pre-load pressure is applied on the barrel of electromagnetic rail launcher, and the hydraulic self-stability of hydraulic servo is used to balance the vibration caused by electromagnetic force. The piezoelectric acceleration sensors with anti-electromagnetic interference are installed at three different positions on the launcher to collect the real-time vibrational signals of rail, and the vibration frequency and amplitude spectrum of the rail are compared and analyzed by using virtual instrument technology. After applying a hydraulic servo pre-load, the time of large amplitude vibration is obviously shortened, and when hydraulic servo preload is applied at different positions, the launcher shows different vibrational characteristics. The test results show that the hydraulic servo pre-load can effectively shorten the vibration duration of rail, furthermore, improving the stability of electromagnetic rail launcher.Key

Key words: electromagneticlaunch, vibrationperformance, hydraulicpre-load, amplitudespectrum

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